IAS 2008

Tutorials

Tutorials will be held on Sunday, October 5

Tutorial #1 - Full Day - Sunday - 8:00 AM to 5:30 PM - Chairman Room
More than Arc Flash - Designing and Implementing a State of the Art Electrical Safety Program
Organizer: H. Landis Floyd II, PE, Principal Consultant, Electrical Safety and Technology, Du Pont

Abstract: This tutorial will use ANSI Z10-2005, Occupational Safety & Health Managing Systems as the framework for benchmarking existing programs and for designing and implementing a state of the art electrical safety program. It will incorporate the requirements of NFPA70E-2004, Standard for Workplace Electrical Safety and other recognized industry standards to achieve a comprehensive program based on proven safety management principles. The attendee will be provided the knowledge and tools to assess existing programs, identify improvement opportunities, and develop implementation plans.

Tutorial #2 - Full Day - Sunday - 8:00 AM to 5:30 PM - Leduc Room
Large (>500HP) VFD applications
Organizer: Frank DeWinter, Business Manager, Large Drives and Mechanical Drives, Siemens Canada Limited

Abstract: TBD

Tutorial #3 - Half Day - Sunday - 8:00 AM to 12:00 PM - Yukon Room
Global Stability Methodology for Switching Power Converters
Organizer: Dr. Sudip K. Mazumder, Associate Professor, Department of Electrical and Computer Engineering, University of Illinois

Abstract: Optimal compromise between stability margin and performance of switching power converters (SPCs) is an ongoing challenge. It has now attained newer heights due to traditional applications such as VRMs/POL converters that are of-late demanding significant performance improvements and due to newer DPS/network applications (ranging from Microgrids and FutureGens based on Alternative Energy Sources, More-Electric-Aircrafts (MEA) for aerospace applications, to Advanced Naval Electric Power Systems (AEPS) for electric ships), which demand performance and stability, not only for individual converters but for the network as a whole.
The obvious question is why are traditional approaches based primarily on averaged models alone not enough? This is because linear/nonlinear averaged model cannot account for the “global dynamics” of a SPC/SPC network and is limited to averaged dynamics under “periodic switching conditions”. Hence, the associated stability tools and control techniques are limited in their capabilities as well. Thus, there is need for a generalized approach that is powerful enough to account for the global dynamics of standalone/integrated/networked SPCs under saturated, quasi-saturated and unsaturated (periodic switching) operating conditions.
Based on the research advancements made in the last decade, including recent breakthroughs by the author (outlined under Section C.2), the author will delineate (using fundamental concepts and several practical applications) this generalized global stability approach, how it can integrate existing averaged model concepts as well as methodologies based on nonlinear maps, and how it can lead to advanced hybrid and distributed controllers. Specifically, the focus of the tutorial will be on two key areas:
Reaching condition analyzes: The first part of the tutorial focuses on concepts and methodologies to investigate the dynamics of the SPCs (ranging from basic to integrated as well as complex homogeneous and heterogeneous networked converters) in the saturated and quasi-saturated conditions. The resultant analytically simple but extremely powerful conditions predict transient stability of the system and its orbital existence (i.e., convergence of error/state trajectories from arbitrary initial conditions to equilibrium).
Equilibrium Stability: The second part of the tutorial focuses on the steady-state stability (asymptotic as well as bounded) of a SPC once its state trajectories have reached equilibrium/near-equilibrium operating condition. Using advanced bifurcation analysis methods based on nonlinear maps, first of all, simple analytical criterion will be developed for equilibrium stability. Subsequently, an assessment will be made regarding the predictions of these new nonlinear techniques as compared to those predicted by nonlinear averaged models as well as more traditional small-signal analyzes methodologies based on linearized averaged models.

Tutorial #4 - Half Day - Sunday - 1:30 PM to 5:30 PM - Yukon Room
Application-Driven Design and Control of Brushless Permanent Magnet Motors
Organizer: Dr. M. Abolhassani, Staff Research Engineer, TECO-Westinghouse Motor Company

Abstract: The increase rate of depletion of fossil energy resources on one hand and growing energy cost and demand on the other hand has initiated considerable research activities worldwide to explore means for tapping into high efficiency motor/drive technologies. Replacing DC machines and induction machines with permanent magnet (PM) machines has recently gained great interest in appliance, automotive, medical, aerospace and military industries.
The advent of high quality, high coercivity, high energy product (40MGO), and high temperature grade (180 C) NdFeB permanent magnet material is the driving force behind the wide-spread use of PM motors in one industrial sector after another. Permanent magnet excitation is current-free and lossless, enabling PM motors to rank as the motor with highest efficiency and power density (kW/kg) as compared to other electric motors.
Despite crystal advantages, some large industries, while being rather conservative and inclined to cling to technologies that seem to have worked in the past, have had rather slow gain in wide acceptance of PM motors. One of the major contributing factors is the fact that adopting PM motors in industrial driven applications that demand their own unique requirements, needs its special design rules and control methods that are far less well developed and limited in their availability compared to those for DC and induction motors.
Recognizing this situation, this tutorial has been organized to address the state-of-the-art of application-oriented practical key issues in the areas of design, analysis, and drive control methods of PM machines. In this tutorial, design requirements and analysis approaches of combined motor and drive system in a wide variety of applications in home appliances, automotive, aerospace, and industry use have been carefully developed and practical and manufacturing issues are discussed. Also, practical implementation of digital control method of sensored and sensorless variable speed PM motor drives are offered. It is believed that this represents a special opportunity for engineers in industry and academia to receive a comprehensive review of the application oriented design rules and control methods of this intriguing PM brushless motors and drives systems

Instructions for Tutorial Presenters

Tutorial Deadlines

March 21, 2008 – Deadline to submit information about proposed tutorial using this form.

March 31, 2008 – Notice of acceptance or rejection of proposed tutorials

Sept. 15, 2008 – Deadline to send tutorial handouts to Donald Dunn, IAS Education Chair

General Information

Up to 4 tutorials will be selected for presentation at the 2008 Annual Meeting. Tutorials will be half day (4 hours) or full day (8 hours).

Tutorial Policies & Procedures

Click here to see the tutorial policies for the IEEE-IAS 2008 Annual Meeting.

The honorarium policy is briefly reviewed here: Any net profit above $500 from an individual tutorial will be divided equally between the conference and the tutorial presenter(s). The first $500 net profit will be given in entirety to the tutorial presenters. Net profit means whatever income for an individual tutorial remains after the best possible estimate for tutorial expenses, including audiovisual, food and beverage, and tutorial course material duplication, has been subtracted from the total registration income for the individual tutorial.