IEEE International Conference




Power Electronics, Drives & Energy Systems for Industrial Growth






8-11 January 1996



Hotel Hyatt Regency &

Indian Institute of Technology







New Delhi, India



PEDES’96 – The first IEEE International Conference on “Power Electronics, Drives and Energy Systems for Industrial Growth” Held in Delhi during 8-11 January, 1996 has received all round acclaim as one of the highly successful conferences ever held in India.  The international delegates were particularly impressed by this great gala event high quality technical programs, special lectures by international experts, key note speeches by dignitaries, apt panel discussions, colourful inaugural and valedictory ceremonies attended by VVIPs, interesting tutorials, massive delegate registration from India and abroad, entertaining cultural programs and grand lunches & dinners.




PEDES was organized by Indian Institutes of Technology (IIT) at Delhi and Kanpur and University of Wisconsin through Wisconsin Electric Machines & Power Electronics Consortium (WEMPEC).  This is the first time the three societies of IEEE namely Power Electronics Society, Power Engineering Society and Industry Application Society have found it appropriate to jointly sponsor a major conference in India.  The other organizing sponsors are IEEE local sections (Delhi and UP) and Foundation for Innovation and Technology Transfer (FITT) ITT Delhi.  This conference attracted major financial sponsorship of several industries such as Asea Brown Boveri, Crompton Greaves, GEC Alsthom, Kirloskar Electric Co. Eupec Gmbh & Co Kg, Munich/Siemens, Bharat Heavy Electrical, Larsen & Toubro etc.  Other local professional societies – Indian Society for Technical Education, Institution of Engineers (India) and IEE Delhi International Centre also supported the conference.  PEDES was also financially supported by several Govt. agencies and R & D / Academic Institutions viz., Indian Renewable Energy Development Agency (IREDA), Ministry of Non-conventional Energy Sources (MNES), Department of Science and Technology (DST), Council for Scientific & Industrial research, (CSIR) Energy Management Centre (EMC), British Council, National Science foundation (USA) Indian Institute of Science, Banagalore and Delhi College of Engineering.  It is needed significant that this first conference has been able to attract such a vast support from industries, institutions, professional societies and Government establishments both from India and abroad, which is rather a rare and unique phenomenon for similar event.


PEDES organization consisted of Indian Patron, Organizing Committee, International – Steering Committee, and several sub committees to handle finance, tutorials, exhibition, accommodation, tours & travels, social & cultural program etc.  The overwhelming support provided by the Director of IIT being the Chief Patron, as also other chairpersons and functionaries of theses committees is duly acknowledge.




The choice of venue had its significance in the light of the policy of IEEE to globalise to reach out to areas in the far east away from America and Europe and to address to local technological problems and issues of industrial interest.  Further India as venue for this first conference assumes importance as the former is considered as one of the top ten industrialized countries with vast industrial infrastructure and production capabilities and is also a country predicted to be a software super power with internationally competitive technical manpower and conducive atmosphere.  Recent efforts by India to be part of the global economy has attracted worldwide attention in terms of inflow of foreign capital and technologies.  PEDES’96 focussed on relevant technologies for developing countries under the new globalized environment under the theme “Technology for industrial Growth” vis-à-vis the vital role of Power Electronics in effective generation and use of electric power. State of art technologies were deliberated in the interlinked areas of power electronics, drives and energy systems and also their applications in transport, industry, renewable energy, mining, space, information technology, custom power and power systems.


More than 450 delegates, nearly 100 from outside India belonging to UK, USA, Japan, Germany, Australia, South Africa, Norway, Switzerland, Netherland, Sweden, Singapore, Canada, Denmark, South Korea, Italy, Finland and Iran, participated in the conference.  A first conference to attract such a vast and varied foreign participation is an achievement.  Among the delegates were large number of Fellows and Senior Members of IEEE, who could be classified among “Who is Who” in the subject area.  It is significant that Indian had large participation among the delegates.  Table 1 gives the countrywise breakup of delegates.  Among the delegates were students, researchers, designers, engineers, professor, industry managers, utility personnel and Government functionaries.




The conference had a very high quality technical program containing 170 papers most of which were presented in twenty technical sessions and two poster sessions on wide variety of topics.  Quality of the papers could be gauged by the fact that they were selected from 320 summaries submitted after duly scrutinized by 115 international subject experts of technical review committee, thanks to the painstaking efforts of Technical Programe Chairs, Prof. Doradla and Dr. B. V. Murty.  Session titles were : (1) Resonant & soft Switching Converters (2) Induction Motor Drives (3) Solar Power Generation (4) Control Aspects of Power Generation (5) PWM & DC/DC converters (6) Field Oriented Control of AC machines (7) Wind Power Generation (8) Analysis of Electrical Machines – I (9) Topology & Control of Power Electronic Converters (10) Switched Reluctance & Permanent Magnet Motor Drives (11) Active Filters and Var Compensation Schemes (12) Analysis & Design of Induction Generators/ Motors (13) Simulation of Power Electronics Converters and Drives (14) Brush less & Special Electrical Machines (15) UPS & Battery Energy Storage Systems (16) Analysis of Electrical Machines –II (17) AC/DC & AC/AC Converters (18) Induction Generators (19) Tractions & Electric Vehicle Drives (20 Application of Neural Networks and fuzzy Logic Systems.

The poster sessions were classified under : (1) Power Electronics Converters and Drives (2) Machine Analysis and topics.


It was gratifying to see that all the four parallel sessions were mostly packed to the capacity with very interesting presentations and discussions from the enlightened delegates from academia and industry ably coordinated by expert chairpersons from India and abroad.  Nearly half of the papers were from outside India with a total of 376 Author drawn from 25 countries as given in Table – 1


The list of Chairpersons is given in Table - 2




Prof. P. J. Kurien, Union Minister of State for Non-Conventional Energy Sources, (Chairman, Board of Governors, IIT Delhi) inaugurated the conference on 9th January, 96 in the magnificent Convocation Hall of IIT Delhi and said “Electrical Energy is the key to development and sustenance of modern economies”.  Though India has made rapid strides in power generation capacity from 1350 MW in 1947 to over 80, 000 MW by 1995, the demand for power has also grown rapidly making it difficult to match the demand with supply resulting in heavy load shedding.  He called upon the developed countries to share their experience in minimizing electricity consumption by improving efficiencies of use and to reduce the gap between demand and supply.  He stressed the need for tapping the abundant non – conventional sources such as solar, biomass, wind, small hydro and ocean energies.  India is the only country with a full – fledged Ministry of Non-conventional Energy which as resulted in Wind Power Capacity of 500 MW, Small Hydro Capacity of 120 MW and Solar Energy expected to be of 300 MW.  India has an ambitious plan of 2000 MW power capacity through renewables by 1997 targeted to achieve 15% of total capacity by 2010.


Prof. Kurien underlined the imperative need for joint projects on mutually beneficial basis in specific areas like high speed transportation, HVDC, renewable energy, power conditioners and energy saving techniques and to devise methods of training to develop the human resources to handle new technologies.


He urged upon the scientists and technologists to work towards appropriate technologies relevant to the industries and the society at large and evolve an effective mechanism for transfer of technology from Laboratories to the field.


The Hon’ble Minister invited the international delegates to make best use of their stay and go round this rich and colorful country.  He made a fervent appeal to the participants to pool their brainpower which he believed was the gift of God to the good of humanity.


Prof. M. G. K. Menon an eminent scientist and Member, Rajya Sabha (Upper House of Indian Parliament) in his key not address said “In the new emerging field of technological advancement, it is necessary make Power Electronics (PE) more sophisticated so as to ensure uninterrupted and stable power to meet the growing demands of the consumer both in quality and quantity”.  There is enormous scope for application of PE to generate more power and also for its effective use through energy conservation.


He highlighted the successful implementation of National HVDC project joints undertaken by different agencies in India reflecting high quality expertise and experience in this area.  It significant that the rise in generation capacity from 1300 MW at the time of independence to 80, 000 in 1995 has been implemented almost entirely by local capabilities, resulting in 6000 MW equipment manufacturing capacity in India.  With ever increasing demand, an additional Power Capacity to the tune of 200, 000 MW in next ten years has to be installed which is a gigantic task.  Power is not an end in itself but should serve a purpose, demand of consumer is getting more sophisticated as the connected loads through new gadgets become sensitive to voltage, frequency and wave forms of power supply.  Such quality power can be provided using PE and relevant control networks.  Often imported equipments in India tend to malfunction due to poor power quality.  We should address these peculiar problems in evolving suitable technologies.  Power Electronics is a rapidly changing field, as we have evolved through mechanical, electromechanical and electronic switching systems.  Development is Microelectronics staring from transistor in 1947 to devices containing a million transistor in a chip is a remarkable scientific evolution of recent times.  While computers and Communication systems use low power devices very high power devices to handle MW range need to be employed in Power Electronics.  Market is the driving force for all developments.  Need of the consumer is driving developments in PE which can be used to control Electric Power in applications such as Industry, Transportation, Non-conventional Energy and Power Transmission.  Power converter technology has come to stay and is expected to make rapid strides.  Human resource development to develop expertise and handle these new technologies is vital.  Major schemes involving PE can be executed only through interdisciplinary approach involving Govt. Departments, Industries, R & D units and user agencies.  Compartmentalization and ivory tower approach has no place.  For example success in Indian space program is attributable to such an approach.  To finance strategic research on a consortium basis the informed that a Technology Development fund is being created in India through cess levied on import off technologies.


Earlier Prof. V. S. Raju, Director of IIT Delhi and Chief Patron of PEDES welcomed the delegates and emphasized that such conferences have a major role in promoting industry-institute interaction and international linkages under the new role expected to institutions like IITs.  He mentioned that the presence of eminent personalities like Prof. P. J. Kurien, Prof. M. G. K. Menon, Prof. C. S. Jha, and Prof. R. C. Malhotra has enhanced the grandeur of the ceremony.  He introduced Prof. M. G. K. Menon, the keynote speaker, as an eminent scientist who shaped Science and Technology policy for India as he occupied several key positions.  On behalf of IIT Delhi and IIT Kanpur he expressed he happiness for hosting this conference.  He also highlighted the activities of IIT Delhi with new emphasis on sponsored projects whose funding now stands around Rs.100 million.  While IITs are producing international quality human resources, finding good replacement to retiring faculty appears to be challenge.


Prof. S. S. Murthy, General Chair of the conference gave a background to PEDES’96 and its importance in the present globalized technological scenario with new role of professional societies like IEEE and technical institutes like IIT.  He quoted an ancient Indian saying in Sanskrit “Let Knowledge from all parts of the world come to us” and pointed out that PEDES has followed this spirit.  He highlighted that this was the first such conference held in India sponsored by three IEEE societies in the subject area with wide participation from Indian industries, Government Departments and international delegates and conceived as a consortium program coordinated in India and USA.  It was a unique experiment executed by two General Chairs-Prof. S. S. Murthy and Prof. D. M. D. Divan located in Delhi (India) and Madison (USA) and two Technical Program Chairs/ Prof. S. R. Doradla and Dr. B. V. Murty located in Kanpur (India) and Detroit (USA) with untiring effort spanning nearly two years. Prof. Divan and Dr. B. V. Murty had continuous discussion with IEEE functionaries in USA since last four years to convince them on the need to take an International conference to India with a promise to conform to quality standards of IEEE.  PEDES has several firsts to its credit – it is the first PEDES, first Indo-US venture organized by two IITs jointly with US counterparts (University of Wisconsin and General Motor), first to be sponsored by three IEEE societies in India etc.  Prof. Murthy emphasized that a first conference also poses special problems as there is nothing to fall back upon on resources, organization, procedures and infrastructure.  Thus PEDES demanded considerably higher efforts.


Mr. N. Venkatesan (Chairman, IEE Delhi International Centre) complemented the organizers on behalf of PEDES supporters.  Mrs. Sukanya Balakrishnan, a well known TV announcer and artist excellently compared the inaugural ceremony.


Felicitation to Prof. Jha


Prof. C. S. Jha, Chairman RAC, DRDO, Delhi and retired Professor of IIT Delhi was felicitated during the inaugural ceremony for his outstanding contribution to technical education in general and the subject area in particular.  Prof. J. Nanda, (IIT Delhi) and Mr. Akhilesh Bansal (ABC Consultants) spoke on their association with Prof. Jha as a colleague and student respectively.  Prof. S. S. Murthy read the citation during this solemn ceremony.  Prof. Kurien released a souvenir containing articles from several of his Co-professionals about his contributions highlighting his immense impact on various facets of professional and social activities.  The Chief guest also presented mementos to Prof. Jha who was garlanded by several dignitaries on behalf of IIT Delhi, IIT Kanpur, IEEE, IEE I.E(I), ISTE, IIT Alumni Association etc. Prof. Jha in his reply thanked PEDES organizers for the felicitation and narrated his experiences in building up IIT after his return from UK more than 30 years ago, as it was both a challenge and an opportunity.  He mentioned that faculty recruitment is very critical.  Highlighting the Indian ethos of dissemination of knowledge he called upon the scientists to think beyond their boundaries.  He emphasized on technology forecasting and adoption of imported technologies to Indian conditions.  He was confident that India has the potential to produce the very best given proper opportunities.  This function was co-sponsored by IIT Delhi Alumni Association.


Prof. R. C. Malhotra, Director, IIT Kanpur who presided complimented the organizers of PEDES’96 and was glad to note large international participation.  He expressed confidence that deliberation at PEDES would be useful as forerunner of R & D. He added his personal felicitation to Prof. Jha by saying that he was a role model with whom he worked for more than 25 years at IIT Delhi with very useful interactions in administering IIT. 


Prof. Deepak Divan, (University of Wisconsin), General Chair of PEDES from USA proposed a vote of thanks on behalf of the organizers and IEEE Head Quarters.  He specially thanked the local organizers for excellent work in meeting that stringent quality standards of IEEE in hosting a major international conference like PEDES.  He expressed his confidence in the PEDES organization, which has proved the capacity of India to host such an IEEE event comparable to the best in the world.  For a first conference to attract 450 delegates is indeed remarkable, he said.  Prof. Doradla and Dr. B. V. Murty introduced chairpersons of Technical Sessions from India and abroad respectively who were presented mementos by the chief guest.



Mr. Selja, Union Minister of Stare for Education and Culture (Govt. of India) inaugurating the tutorials on 8th Jan. 96 urged the IITs to join hands with industries to improve the quality of power and develop new technologies relevant to India.  She opined that continuing education was a must for engineering with fast obsolescence needing professionals to update their knowledge.  She was particularly happy that a group of faculty from USA, some of the India origin, had coordinated a composite tutorial package on Computer Simulation strategies for power electronics and energy systems.  She also appreciated the tutorial on “Small Hydro and Wind Energy Systems”, which has great relevance to India in view of acute power shortage and the need to tap renewable energy to energies rural and remote areas.  The experts having worked in Nepal and Australia can share their experience to improve the system in India.  On behalf of Government of India, she welcomed the delegated especially those from abroad.  Subjects of PEDES reflect rapid changing technologies, which are relevant to India, and the theme “Technology for Industrial Growth” is very apt.  India is keen on new technologies specially the energy efficient ones and welcomed foreign participation.  Our educational institutions like IITS have done pioneering work and acquired international acclaim.  India is laying emphasis on infrastructure and investments in social upliftment.  Skilled manpower is very necessary it implement new technology-based schemes.  She appreciated the idea of holding an “Industry Round Table”, at the end of the conference and hoped that it would result in setting up new business in India with international participation.


Mr. N. Vittal, the then Secretary, Department of electronics (DOE) (Presently Chairman, PESB) delivered the keynote address and noted that more than 25% of electricity was lost due to faulty transmission and theft in the country.  He appealed to the electrical and electronic experts to develop devices and equipments to check this trend.  He informed that the DOE is continuously engaged in developing new technologies involving relevant agencies.  He called for multi-disciplinary approach to achieve breakthrough in the field of power electronics.  He complimented the organizers for this first ever IEEE sponsored Power Electronics conference in India with several agencies participating.  He was glad that the tutorial is focusing on four specific and relevant areas to India.  He agreed with Prof. S. S. Murthy that the tutorials being part of continuing education is also a part of Indian ethos ordained in ancient scriptures and quoted relevant sections highlighting “Knowledge Sharing” which makes all to grow.  PE encompasses several subjects – Devices, Circuits, Electrical Machines, Signals Electronics, and Control Theory.  “Electric Power” has become very important which cane be effectively controlled by power electronics.  Quoting the well known nuclear scientists of India of India, Dr. Homi J. Bhabha who said “No power is costlier that No revolution.  Today’s product has 90% technology and 10% material, which conform to the theme of PEDES “Technology for Industrial Growth”.  He quoted the Japanese experience of 30% energy saving after the “oil Shock” of 1973 through energy efficient technologies.  Industries in India are energy guzzling although the per capita energy availability is low.   Energy Conservation and Alternate energy have become very relevant to India.  He narrated the problem in developing “Electric Vehicle” in India due to multiplicity of agencies and urged for proper coordination towards “Mission” based joint projects.  He suggested a proper mix of import of technology and indigenous R & D.  He hoped that PEDES would not end at the conference but lead to long term association for technology development with continuous intellectual efforts in view of the remarkable contributions of persons of Indian origin in international arena. He referred that IC in Silicon Valley is now expanded in a lighter vein as “Indian & Chinese”.  He highlighted peculiar social problems faced by new technologies in India by saying “ India can face technology but can technology face India?”.  He narrated the opposition to Electronic meters by Indian Taxi Drivers to drive home this point.  It is therefore important to plan how to use new technologies in the Indian context.  He hoped that PEDES will not become  “PEDEStrain” seminar but would create lasting impact to this part of the world.


Earlier, Prof. V. S. Raju welcomed that Minister, the keynote speaker and delegates and highlighted the academic activities of IITs and their International linkages.  He expressed that conferences like PEDES are very relevant to IITs as they bring academia and professionals together.  Prof. S. S. Murthy, General Chair gave background to PEDES and tutorials.  “Power and Energy” have become very relevant to India and “Power Electronics” has become handy.  Tutorials were planned by utilizing the presence of experts attending PEDES to benefit the professionals in industries and academia.  Quoting for the apt Sanskrit statement in the India epic, Upanishad (Swadhyay Pravachanabhyam Na Pramaditavyam) which ordained on a student leaving the portals of university to continue “Knowledge Dissemination” and “Knowledge Assimilation” throughout life, he mentioned that Continuing Education has been a mandatory part of Indian ethos during last 5000 years of history and hoped that the planned tutorial would be found professionally useful for the participants.


Dr. P. K. Kalra (IIT, Kanpur), Tutorial Chair, detailed the organization, planning and coordination of four tutorials by the assigned coordinators.  He proposed a vote of thanks to the chief guest, delegates of PEDES and Tutorial participants.  He particularly thanked the tutorial speakers coming from difference parts of the globe for their efforts in presenting state of art lectures and demonstrations.


The Tutorials held in the following topics and conducted by international experts drawing from USA Canada, UK, Japan, South Africa, Australia and India received massive response with more than 200 participants including several spot registrants resulting overcrowded tutorial sessions and lively discussions.


1.         Modelling of Power Electronic Systems and Application to Power Systems and Drives


Faculty:           Ned Mohan (Univ. of Minnesota, USA), P. Lauritzsen, S. S, Venkata (Univ. of Washington, USA), P. Enjeti (Univ. of Texas A& M, USA), Ram Narayan (II. Sc., B’lore), V. V. Shastry (IIT Madras), P. Joshi (Allen Bradley), G. G. Karady (Arizona Univ.)

Coordinator:   P. K. Kalra (IITK), P. Joshi (Allen Bradley)


2.         Power Converters, Drives and Control


Faculty:           A. Bhat (Univ. of Victoria), P. Jain (Univ. of Concordia), R. Uppal (ABB), S. K. Bhattachary (Univ. of Texas A & M), J. F. Gieras (Univ. of Cape town), South Africa).

Coordinator:   J. Chaterji, (Allen Bradley)


3.         Measurement Techniques and intelligent Systems for Power Electronics.


Faculty:           V. K. Sood (IREQ, Canada), H. S, Chandrashekaraiah (II. Sc. B’lore), Anup Kumar (Univ. of Louisville), Y. Tanno (Shinshu Univ. Japan)

Coordinator:   Dr. S. C. Kapoor, DIT


4.         Wind and Small Hydro Energy Systems (Jointly sponsored by British Council)


Faculty:           N. Smith (Nottingham Trent Univ. UK), C. V. Nayar (Perth Univ. Australia), S. S. Murthy (IIT Delhi)

Coordinator:   Prof. A. K. Tandon (DCE)




The following nine special lectures by international experts on state of art subject, industrial experience and futuristic trends were star attractions of PEDES which were very well attended and highly appreciated by the delegates due to their topical interest.  Technical discussions were very illuminating.








Deepak M. Divan

Univ. of Wisconsin, USA

Power converter for industrial Applications


P. K. Dwivedi

Power Grid Corporation of India Ltd.

Experience of using Power Electronics in the Indian Power Grid


V. S. Raju

IIT Delhi

Exploiting Wave Energy for Producing Electricity – Indian Experience



GEC Alsthom, UK

Development Trends and feature analysis of Drive

Drive system for Electric Rail Cars


T. A. Lipo

Univ. of Wisconsin, USA

Advanced Non-sinusoidal Motor Topologies


R. Arockiasamy

 IIT Delhi

Flywheel Energy Storage


B. V. Murty

General Motors, R & D Centre USA

Electric & Hybrid Vehicle Technologies (Automotive Power Electronics).


M. Roffler

ABB, Switzerland

High Power Converter with GTO Thyristors for three phase main – line traction units.


The above lectures have been video taped and are available with the PEDES Secretariat.  Each module would consist of videotape, copy of projected transparencies and brief lecture notes.  The summary of each lecture would be brought out along with book of abstracts, which can also be obtained from the PEDES Secretariat.




As part of PEDES’96 it was considered essential to predict forthcoming technologies utilizing the preserve of subject experts from different countries.  This panel discussion entitled “Technology for 2005” was chaired and moderated by Prof. C. S. Jha and participated by select panelists.


Prof. Jha introduced the topic by remarking the though the technical predictions are often difficult, panelists may be able to highlight forthcoming areas based on their rich experiences.  The opinions of panelists are summarized below:


Prof. T. A. Lipo (Univ. of Wisconsin USA):     Silicon Carbid (Si-C) Technology is a major upcoming area with bi-directional voltage blocking devices.  Multilevel, Multiface, current source circuits involving matrix converters are the expected circuit configurations.  Future motors would be converter compatible.  On application aspects load adaptation, bearing currents, EMI-EMC and effect of dv/dt would become important.


Prof. V. Rajgopalan (Univ. of Quebec, Canada): More converters and new topology with active filters using computer aided tools for design of higher capacity converters, use of intelligent systems for training, improved instrumentation/measurement technique to facilitate proper protection system especially under abnormal peak currents are future trends.


Dr. B. V. Murty (General Motor, USA): touched upon transportation area and predicted electric and hybrid vehicles which can save fuel consumption to nearly 1/3 of present levels with reduced emission; Ultra low emission vehicles (ULV) with 1/4 the present level are expected.  He drew attention to US support to battery developments and alternate energy systems for road transportation.


Prof. Deepak Divan (Univ. of Wisconsin, USA) predicted rapid changes in transportation sectors battery research being critical.  For India Electric hybrid car, four cycle, small engines and electric mopeds and rickshaws to be focused.  Suitable mass transport system for countries like India both for suburban and intercity services would attract new technologies.  In power sector bulk power transmission through HVDC series compensation peak sharing using SMES would find increased use.  Industrial Power needs would become sophisticated through line conditioning, UPS, harmonic and demand fluctuation management.  PE would be useful for energy saving techniques and alternative energy systems such as wind, PV, small hydro and cogeneration systems.


In industrial sector improved productivity would be achieved by improved drives converters on quality of power, cost reduction.  For heavy industries, high power drives and harmonic compensation schemes would be evolved.  For light industries, telecom power supplies using SMPS, UPS media and low power drives, electronic ballasts are key areas.  Compact telecommunication power systems using SMPS and chips would continue to be developed and improved.  On devices high power IGBTs (4500 V, 300 A) MCT’s and Si-C MOSPETS are forthcoming.  In converter technology, hard switching is reaching limits and more and more soft switching would be attempted.  On process automation flexible building blocks to meet customer’s needs would assume importance.  He touched upon system integration and energy storage aspects such as ultra capacitors and flywheel energy storage.


Prof. J. F. Eastham (University of Bath, UK) predicted metal hybrid batteries for cars.  Universal motors would see their demise and would be replaced by converter-fed brushless P. M Motors, switched reluctance and induction motors.  Compact inverters on chips are expected.  Problems of electric cars such as batteries, converters, motors and control mechanism to achieve desired acceleration and variable speed need to be addressed.


On mass transit he predicted sky trains as in Vancouver (Canada) using linear induction motor on wheels in view of problems of maglev.

High efficiency induction machines with more care in design but not through increased cost is expected due to powerful


PCs and workstations.  Improved modeling and graphical visualization of electro magnetic, thermal and mechanical stress distribution in electrical machines would be forthcoming towards improved design and manufacture and also as teaching tools. 


Prof. Consoli (Italy) predicted field oriented sensor less and intelligent control techniques using fuzzy systems.  EMC-EMI and related electrical pollutions would be considered for converted topology.


Prof. Akagi (Japan) touched upon utility application of power electronics and graphically narrated the linkages as a marriage of power electronics and power engineering.  GTO thyristor of 6 kV, 6 KA and light-triggered thyristor of 8 kV, and 3.5 KA are available.  Higher degree of frequency and voltage stability, a greater usable capacity of transmission lines are expected.  He mentioned the latest technology adopted in Japan such as adjustable speed, pumped storage system with 20 pole generator/motor of 400 MW capacity with the advantage of frequency stabilization and improved reclosing conditions.


The present HVDC system in Japan is 300 MW, 250 kV, 1.4 kA using light triggered Thyristors of 6 kV, 2.5 KA capacity.


Prof. C. V. Nayar (Univ. of Perth (Australia) touched upon decentralized hybrid systems using solar and wind, which has tremendous scope India.  Power electronics would play in major role in such renewable energy systems.  With large number of remote villages decentralized power supply for India would be very relevant and cost effective.  India is the third larges wind power generating country and is expected to be the world leader in using power electronics and renewable energy system by 2005.  Hybrid systems using renewable sources-wind, solar and small hydro with diesel system-would be technically viable.

Mr. Roffler (ABB, Switzerland) touched upon mass transportation with special reference to India.  He stressed that the predominant factors would be energy saving, comfort and economy.  For Mass transport tramways would be relevant for India.  Energy saving through regenerative braking and improved power factor should be attempted.  He suggested retrofitting of existing systems and cost reduction in production and design.  He predicted use of satellite and centralized computers for train movements and wagon locations.


Mr. Limpaechers (DC Transformation Inc. USA) repeated that Si-C devices would be a reality as it eliminates liquid cooling and reduces heat sink requirements.  Large installation of DC transmission and distribution system and cable transmission can be predicted. DC house holds are already attempted.  Induction motors would continue to stay but would be converter driven from d.c. source.


Mr. Mohd. Hanif (BHEL India) mentioned the state of HVDC technology in India which has 1500 MW installed capacity. Mr. Mehrotra (Indian Railway) suggested development of contact less current collection for electric trains for Indian Railways.  Total productivity Maintenance (TPM) is important for India Railways.


Prof. Jha summarized future projections and suggestions of panelists as follows:


1.                  Devices : Si-C technology with bi-directional voltage, new heat removal technologies, higher rated GTO’s, electrical high efficiency machines, converter compatible motors.  Widely used universal motor would be phased out to be replaced by brushless PM, switched reluctance and induction motors.  Some of the difficulties of high current devices may vanish.

2.                  Converters & Circuits : Large converters using new technology and active filter.  Multi-level, multi-phase circuits with matrix converters.

3.                  Application Scenario:

a.       Transportation – electric / hybrid vehicles with reduced emission and fuel consumption.  High-speed traction by sky train as in Vancouver.

b.      Energy Saving : Increased use of power electronics in generation, transmission and distribution to save energy.

c.       Power Systems : increase in use of HVDC transmission, DC transmission/distribution.

d.      Alternate Energy system such as wind, solar, small hydro becoming technically and economically viable (through Power Electronics)

e.       Industrial Sector : Improved productivity through better quality of power system.

4.                  Control Aspects : Fuzzy and neural network applications.

5.                  Research topics: Field oriented control using intelligent controllers sensor less control, EMC – EMI aspects, improved battery for electric cars.  Super conductivity and energy storage techniques.

6.                  Technology for India : renewable decentralized / hybrid energy systems (wind-Diesel units), Hybrid vehicles.




PEDES’96 had a very effective and apt concluding function with Mr. G. V. Ramakrishna, Member (Energy), Planning Commission, Govt. of India as Chief Guest with several dignitaries belonging to industry, academia and Government presenting their views on technology policies for India.


Mr. N. Vakatesan welcomed the guests and gave background to the session. Prof. S. R. Doradla, Technical Program Chair reported on the successful conducting of technical sessions.


Mr. M. S. Vasudeva (DOE. Govt of India) presented the dominating role of PE in the Indian context and emphasized that developing countries cannot ignore this vital area as it can provide technological solutions as regards energy conservation, quality power, and effective handling of electrical energy.  Different factors come to play in using PE in different sections.  He identified Transportation, Non-Conventional Energy, energy conservation, Custom Power, Domestic / Office equipments as relevant areas.  The critical need is to implement time bound projects with joint collaboration between industries and institutions. 


Mr. Lobo Prabhu (Railway Board) highlighted the role of PE in Indian Railways.  He mentioned successful indigenous efforts such as chopper development by BARC Bombay for Bombay Suburban Trains and role of BHEL in High Power traction equipment.  He mentioned international linkages of India Railway in procuring latest technologies and emphasized the need for R & D to design systems to suit Indian field conditions for passenger and goods traffic.


Mr. M. P. Narayanan, (Retd., Chairman, Coal India Ltd.) highlighted the role of Power Electronics in Coal Section since India was one of the larges Coal producing countries.  While open cast mines require less technical expertise to extract Coal, the underground mines offer greater challengers.  Power Electronics can provide solutions as regards mine safety, remote control and unmanned operations.  Gestation period in coalmines is long, inhibiting Private investment, which may be reduced by Automation.  Electrical Energy conservation in Coal Sector is important and advances in PE and drives have to be exploited to save energy in coal sector.


Prof. V. S. Raju (IIT Delhi) emphasized the need for interaction between industry and institutions to tackle problems which are of immediate relevance to industries.  He highlighted that the technical institutions in India has wealth of expert manpower both in terms of faculty and students who should receive increased support by industries to tackle their technological problems.


Prof. Deepak Divan reminded the crucial decision taken by Japan to pursue PE to the fullest extent, which has made them the leaders of today.  The example of the Japanese Government to support a group of industries for indigenous programs on common technology is worthy of emulation.  Today, the Japanese are the leaders in PE devices mainly due to joint efforts of industries and academia.  He also mentioned “Sunshine and Moonlight programs” and bootstrap approach of Japan.  In the Indian context, he suggested that the institutions must gear up to be provide effective professional help to industries by upgrading theoretical, (Modelling / Simulation laboratory and fabrication infrastructure.


Prof. S. S. Murthy highlighted issues concerning R & D in Indian context under the market economy.  It is important to identify new challenges and threats to indigenous efforts, under globalization.  There is considerable scope for linkages between leading technical institutions and industries both in India and abroad to identify and develop suitable technologies, which may be more relevant to countries such as India.  The trend among young engineering graduates to desist from pursuing career in technology related fields in comparison to sales, marketing and management is a serious problem to be addressed to.  It is necessary to building suitable manpower to absorb imported technology and to adopt to local needs.  The Universities.  IITs and R & D Institutions in India must transform to be hub of R & D activities on latest technologies with effective collaboration on transactional plane.  The issue of indigenous versus imported technologies needs to be objectively looked into.  Some International linkages involving Non Resident Indians may be effective in some areas due to their experience on local conditions.  For the globalization to succeed through enhanced technology development for industrial growth, further simplification of administrative procedure and more freedom to scientists and technologists would be required.  Sprit of liberalization has to spread to all levels of government functioning.


 Prof.  Lipo (Univ. of Wisconsin, USA) was forthright in suggesting that India should not work in the same high – tech area pursued in developed countries as they are neither relevant nor can be effectively and successfully implemented.  He advised Indian researchers not to chase such a mirage and focus on pollution.  Urban congesting and mass transportation.  Development should not be at the cost of environment and Indians should works on Hybrid buses and electric mopeds, which are very appropriate.  He noted acute power shortages in India and strongly advocated renewable energy such as wind, solar, small hydro etc.

Mr. P. K. Dwivedi  (PowerGrid Corporation of India) highlighted the need for reliability studies on AC and DC transmission taking data from the Indian Grid.  There is need for indigenous development on Power Electronics equipment for power transmission.


Prof. C. V. Nayar (Perth University, Australia) emphasized exploitation of renewable energy techniques under a joint collaboration between institutions in India and abroad Mr. Santhanam (Member, Railway Board) highlighted some of the future plans of Indian Railways such as High Power Engines.  Indian Railway is one of the fastest growing railway systems in the World and planned doubling of output in the next ten years is a great technological challenge.  In some of the critical areas, cost of importing technology has become prohibitive needing indigenous development.


Mr. G. V. Ramakrishna gave an inspiring speech highlighting critical issues in the light of globalization.  India being a signatory to WTO has become important and technology is considered an intellectual property having economic value.  He informed that major issues were covered in his speech delivered at the convention of Institution of Engineers held at Jaipur in December 95 (circulated during PEDES) and the speech by Prof. Murthy on Technology policy issues.  Technology today has a price and India has to acquire state of art technology and work on further development. Some technologies may become obsolete by the time they are created locally.  Patents have to be taken for technological development in India to be able to use in the world market.  He called upon the Engineers to see that high technology is effectively put to use to meet the basic needs of literacy, food, health, energy, transport and housing of rural masses.  Information technology can also be used to connect rural dispensaries with district hospitals and special medical centers so that diagnostic support can be given by specialists over telecommunication regarding treatment to rural patients.  Rural areas may have complete link ups with central library database.  He underlined the paramount need for a High-level national technology commission to identify suitable technologies in key areas and to plan for realistic approach for development. The commission will identify Technology Growth areas appropriate to Indian requirements and monitor Technology projects from conceptual to successful implementation stage, bringing almost a networking of Government, R & D Institutions, Academic Institution and Industry.  While Technology in sophisticated areas can be pursued, there is equal and urgent need to channelise Technology efforts to improve living conditions of the common man.  He also cited the example of ‘Mark-II’ water pump developed by India as perhaps the only Indian brand product accepted world over.  In allowing MNC’s to enter India with majority participation they must be made to bring in High Technology n select areas, to avail the benefits of the large Indian Domestic Market.


Prof. S. R. Doradly reported on the technical and poster sessions held during PEDES and their over all impact.


Prof. B. V Murty proposed a vote of thanks.  Having come all the way from USA he added he was thrilled by PEDES and excellent work done by IITs of Delhi and Kanpur and the student volunteers.  This was the first attempt under globalization of IEE to extend activities to India and surrounding regions by sponsoring the first PEDES.  The process has just begun and it is expected that PEDES would be held at regular intervals in this region.  He thanked on behalf of IEEE various local committees who have done an excellent job resulting in grand success of PEDES in all aspects.  He was particularly move by the dedication of several individuals and volunteers towards the success of PEDES


Prof. S. S. Murthys recalled the unprecedented support given by the Government of India, Industry, Institutions and other agencies, which was very crucial to create necessary infrastructure for PEDES to make this a truly international conference.  Since PEDES is planned to be held as a regular event one in two years, we the venue for next conference should be decided soon so that the preparations can start in right earnest early it is planned to have PEDES 2000 in South India perhaps Madras or Bangalore.  PEDES’96 was declared closed bidding good-bye to delegates to meet again at PEDES’ 98.



The Technical exhibition organized at Hyatt Regency Hotel during PEDES reflecting the latest technologies and products by different industries was a centre of attraction.  Leading industries and organizations such as Siemens, Kirloskar Electric Co., CMR Design Automation (P) Ltd., Energy Management Centre, Amtech Electronics (P) Ltd., etc participated in the exhibition and exhibited their products relating to Power Electronics, Industrial Drives, Energy Systems, Intelligent Controllers, Variable Speed Drives, UPS, Instrumentation, Electrical Machine, Renewable Energy Systems, Power Systems, Information Technology, Transportation, Domestic and Industrial Applications.




The Cultural Program held on 10th January 96 (Evening) at IIT Delhi organized by Prof. J. Nanda, Cultural Committee Chair was a great attraction depicting the rich cultural heritage of India.  A scintillating “Bharatanatyam” dance recital by disciples of Smt. Jayalakshmi Easwar, “Odissi” dance performance by disciples of Guru Mayadhar Rout and musical performance by the students of IIT music choir captivated the audience.  The international delegates in particular enjoyed the colourful program, which generated enormous curiosity among them as it was a sample of the unique art and culture of India nurtured for more than 1000 years of its history.  Prof. Nanda and Prof. Murthy gave a background to the Cultural Program and their eternal appeal.  The well known TV artist and announcer Mrs. Jyotsana Roy excellently conducted the cultural programme.


The specially arranged ‘Conference Dinner’ at the lawns of Director’s bungalow at IIT Delhi was thoroughly enjoyed by all the participants.  With the theme as “Food of India” they were excellent culinary recipies from different parts of India with great varieties and tastes.  The “Farm House Dinner” held on 10th evening in an altogether different rural setting away form the din and bustle of Delhi Metropolitan City provided a unique experience for delegates as they enjoyed sitting and eating around fire place till late hours in the night.



A special component of PEDES was the Industry Round Table organized at IIT Delhi jointly with FITT to focus on industrially relevant technologies to be undertaken through appropriate follow up actions.  The discussions were moderated by Mr. Santhanam, Member (Electrical), Railway Board, and attended by representatives of academia, industry and Government agencies.


Prof. C. V. Nayar (Australia) felt that renewable energy and hybrid energy systems are relevant areas wherein industrially exploitable technologies can be developed for countries of this region.  He presented the Australian experiences of installing hybrid systems involving wind and solar energy.  Since drawing power lines to remote and rural areas in India is still expensive it make sense to exploit available resources in hybrid mode to provide electricity to the masses through stand-alone systems independent of the grid.


Prof. Deepak Divan, (USA) suggested that power conditioners would be suitable for development for Indian view of special problems of power quality and reliability.  Apart from standby power sources he advocated development of live power conditioners, which converts impure power of utilities to pure power to the customers.  He highlighted the expertise available at WEMEC and his industry, (soft switching technologies) which may utilized.


Dr. Saxena (Power Grid Corporation of India) mentioned the role of power electronics in power transmission, which requires system studies, growth forecasting and technology transfer issues between countries.


Dr. B. V. Murty, (General Motors, USA) identified electrical vehicles as an appropriate are for development in India.  He explained the policies of General Motors in classifying technologies wherein one could be a leader, follower or a buyer.  He suggested similar planning for Indian industries.  He felt that India has enough experience in electrical machine and drives technologies in which they can work towards leadership by incorporating power electronics for transportation and may even be in a position to export technologies and do international bidding.  He emphasized that electrical and hybrid vehicles for mass transportation for Indian conditions should be developed soon through joint R & D programs.  He felt that intensive pre-competitive research must also be undertaken to develop necessary expertise.


Prof. Eastham, (UK) narrated the experience of UK in working on joint industry institute projects relevant to industries jointly fund a research program in as University to create state of art competitive technologies.  He suggested that the teaching company concept of UK may be worth of UK may be worth considering in India for industry-institute interaction.  He suggested that “Small and special electrical Motors” can be an area to be pursued in India for industrial exploitation view of good local expertise and market potential.  He states that the industry can support students, research staff and scholars at institution s work on industry relevant projects towards their degree requirements.


Mr. M. Roffler, (ABB, Switzerland) suggested speed 3-phase drives for traction would be very relevant for India.  ABB is involved in supplying such drives for Indian railways and there is considerable scope for interaction on technology transfer, technology upgradation and indigenous development.  He was particular that R & D persons Chosen by the organizations in India must be engaged in such project on long term basis.  The change of person in midcourse creates complications.


Prof. C. S. Jha (DRDO), Prof. S. S. Murthy (IITD), Dr. A. K. Sengupta (FITT) and Mr. M. S. Vasudeva (DOE) gave background to “Industry Round table” which was to identify specific areas for technology development with special reference to industries in developing countries.


Mr. N. Vital who was the Chief Guest presented a very realistic assessment of the situation based on his vast experience in Government of India in difference capacities.  He highlighted that globalization has thrown up several challenges, and opportunities.  Presentations and discussions held during this session is a positive indicator that technological growth is possible through joint R & D programs involving expertise from India and abroad for a common good.  Further he cautioned that the transfer of any new technology to the field is beset with several technical and non-technical problems and the technologists must present their views effectively with the policy makers to make their technologies usable in society.  He mentioned the successful indigenous efforts on HVDC and also the problems faced by such schemes.  Resource crunch, financial issues, global aspects, market forces, international property rights are factors to be taken into account in planning any technology and industrial policy.


Mr. Santhanam in his concluding remarks suggested identification of suitable technologies for follow up.  After considerable deliberations the following four areas were identified.  It was suggested that suitable working groups for each should be formed soon involving appropriate agencies from India and abroad (Govt. R & D financial institution, academic institutions and industries).  It was also suggested to include atleast one foreign expert / NRI in each team. The suggested names are given in brackets below:


1.                  Electrical Transportation                                   (Dr. B. V. Murty)

2.                  Power Conditioners                                          (Prof. Deepak Divan)

3.                  Renewable Energy System                                (Prof. C. V. Nayar)

4.                  Power Electronics & Power Transmission         (Dr. Krishnaiah & Dr. Hingorani)


Dr. A. K. Sengupta, Managing Director, FITT thanked the participants of the Industry Round Table and suggested that quick follow up action need to be taken on these decisions to start technology development efforts for industries.



A special document on the outcome of PEDES is being brought out which included the abstracts of papers, comprehensive report of the deliberations, summary of important speeches by dignitaries, summary of special lectures, list of delegates and their address, summary of feed back from delegates on PEDES.




The following documents are now available on sale.


1.                  Proceedings in two volumes containing all 170 papers presented during the conference (Total pages 1084).

Cost : Rs. 1500 = 00 (US $ 80.00) per set

2.                  Tutorial notes. (Tutorial – 4 is also available on video)

Cost : Rs. 500 = 00 (US $ 30.00) per set

3.                  Videocassettes of special lectures (includes lecture summary and copies of projected transparencies).

Cost : Rs. 1500 = 00 (US $ 80.00) per set

4.                  Post conference proceedings.

Cost : Rs. 100 = 00 (US $ 5.00) per set


Videocassettes of Inaugural Ceremonies (includes keynote speeches of Prof. M. G. K. Menon and Mr. N. Vittal, speeches of Ministers, Prof. P. J. Kurien and Ms. Selja and felicitation to Prof. C. S. Jha) and Cultural Program are also available at nominal price.

For details please contact


Prof. S. S. Murthy                                                                    Prof. Deepak Divan

General Chair, PEDES’96                                                        2224, Ever Green Road

Department of Electrical Engineering                             Suite # 6, Middleton

Indian Institute of Technology                                        WI 53562

Hauz Khas, New Delhi – 110 016                                            USA

Tel :      666 979 / Extn. 2230                                                   Tel :      (608) 836-6552

Fax :     91-11-686 2037                                                          Fax :     (608) 836-6553          

E-mail :

Dr. A. K. Sengupta

Managing Director,

Foundation for Innovation & Technology

Transfer (FITT)

IIT Delhi, Hauz Khas

New Delhi – 110 016

Tel No.: 666 979/ Extn. 7067

Fax :     91-11-685 1169



S. No.


No. of Papers

No. of Authors

No. of Delegates












































































































































1.                  S. R. Doradly, IIT Kanpur, India

2.                  G. Venkataramanan, Montana State Univ. USA

3.                  T. A. Lipo, Univ. of Wisconsin, USA

4.                  A. Consoli, University of Catania, Italy

5.                  M. Ramachandran, IRED, New Delhi, India

6.                  H. Akagi, Okayama Univ. Japan

7.                  P. K. Dwivedi, PGCIL, India

8.                  Ashoka K. S. Bhat, Univ. of Victoria, Canada

9.                  N. Ramachandra, Kirloskar Electric Co. India

10.              Harshad Mehta, Silicon Power Corpn., USA

11.              S. K. Biswas, Jadavpur  Univ. India

12.              C. V. Nayar, Curtin Univ. of Technology, Australia

13.              B. J. Chalmers, UMIST, UK

14.              C. S. Jha, DRDO New Delhi, India

15.              D. M. Divan, Univ. of Wisconsin, USA

16.              R. Arockiasamy, IIT, New Delhi, India

17.              J. F. Eastham, Univ. of bath, UK

18.              S. S. Murthy, IIT, New Delhi, India

19.              N. Mohan, Univ. of Minnesota, USA

20.              M. Ramamurthy, ERDA, Baroda, India

21.              B. V. Murty, General Motors Corpn., USA

22.              N. D. Sharma, Bhabha Atomic Research Centre, Mysore, Indian

23.              V. Rajgopalan, Univ., du Quebec, Canada

24.              J. F. Gieras, Univ. of South Africa, South Africa

25.              C. R. Varrier, Compton Greaves Ltd., Bombay, India

26.              Praveen Jain, Concordia Univ., Canada

27.              A. K. Mandal, Larsen & Toubro Ltd., Bombay, India

28.              K. Venkataratnam, IIT Kharagpur, India

29.              D. R. Kohli, AICTE, New Delhi, India

30.              T. M. Undeland, Norwegian Technical Institute, Norway

31.              A. K. Chattopadhyay, IIT Kharagpur, India

32.              M. A. Rahman, Memorial University of Newfoundland, Canada

33.              G. J. Berg, Calgary University, Canada/UNDP, Nepal

34.              G. K. Dubey, IIT Kanpur, India

35.              N. Lobo Prabhu, Railway Board, New Delhi, India

36.              R. D. Lorenz, Univ. of Wisconsin, Madison, USA

37.              J. Nanda, IIT Delhi, India