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IEEE Power and Energy Society |
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| Phoenix Chapter |
| March 2004 Luncheon Meeting |
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| Date: |
Thursday, March 11, 2004 |
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| Speakers: |
Dr. Elias Kyriakides, Arizona State University |
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Sid Suryanarayanan, ASU PHD Candidate |
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| Topics: |
"Presentation of Research Being Done At ASU" (See Below) |
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Summary:
Dr. Elias Kyriakides spoke on the topic: "Synchronous Generator Parameter Identification".
This topic coverd a method to identify synchronous generator parameters from on-line measurements.
Some of the salient points of the presentation were the following:
The existing off-line techniques for parameter estimation are often not practical and do not capture the behavior of the generator at
all operating levels.
Generator parameters vary due to aging, changes of the generator internal temperature, magnetic saturation, and coupling between the generator and external
systems.
The method described in Dr. Kyriakides' presentation estimates generator parameters at
any operating level, taking into consideration the effect of saturation and other
phenomena in the operation of the synchronous generator.
Mr. Suryanarayanan spoke on the topic of: "Accommodation of Unscheduled Flows in Unregulated Markets"
His presentation showed how electric power flowing in transmission circuits obey physical laws rather than prearranged
schedules, thus introducing unscheduled flows (USF) in the system. The unscheduled flows may
pose a threat to the operation and economics of the system by reducing available transmission
capability (ATC), overloading lines, limiting transaction schedules, causing deviations in
the cleared market price, and forced participation and uncompensated losses of third parties.
The present method to overcome the USF is by following curtailment of schedules and accommodation
among TRANSCOs. This method is selectively performed only on qualified paths of the system and
for levels of USF that approach the congestion threshold. His presentation covered a novel technique to equitably
accommodate the pre-congestion level USF among GENCOs.
This method employs the tagging of schedules and the estimation of fictitious loop flows in the
system. This method is post-operative and determines a monetary charge or compensation to
the participating GENCOs. The accommodation of USF among GENCOs is expected to serve as a
motivation to the independent system operators (ISOs) to pursue better scheduling algorithms.
The meeting was attended by 19 people plus the two speakers.
Biographies:
Dr. Elias Kyriakides is from Nicosia, Cyprus. He received the Diploma of Technician Engineer
from the Higher Technical Institute in Nicosia, Cyprus in 1996, the BSEE degree from the Illinois
Institute of Technology in Chicago, Illinois in 2000, and the MSEE and Ph.D. degrees from Arizona State
University in Tempe, Arizona in 2001 and 2003 respectively. He is currently a Faculty Research Associate
in the Department of Electrical Engineering at Arizona State University. His research interests include
electric machines, state estimation, distributed generation, computer applications in power engineering,
and applications of innovative methods in engineering education.
Siddharth Suryanarayanan received the B.E. degree from the Madras University, India in 2000,
and the M.S. degree from Arizona State University, in 2001, both degrees in electrical engineering.
He is currently a Ph.D. candidate in electrical engineering at Arizona State University.
His research interests include state estimation, transmission planning, protection, computer
applications in power systems, and engineering education. He is affiliated with the IEEE and
IEEE-PES as a student member since 2000.
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