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Verification and expansion of a method of transient analysis of voltage collapse based on the induction motor load model |
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| Authors: | Hiroshi Ohtsuki Akihiko Yokoyama Yasuji Sekine |
| Affiliation: | 1. Kansai Electric Power Co.
Hiroshi Ohtsuki joined Kansai Electric Power Co. in April 1983 after obtaining a Master's degree from the University of Tokyo, he has been in charge of power system operation. He was a research student of the University of Tokyo from April 1988 to April 1989. He is a member of IEEE.;2. University of Tokyo Akihiko Yokoyama joined the University of Tokyo as an Assistant after obtaining a Dr. of Eng. degree from the University of Tokyo in March 1984. He was promoted to Lecturer and Associate Professor at the same university in 1985 and 1989, respectively. His interest is in power system engineering. He is a member of Japanese Institute of Applied Mathematics;3. IEEE;4. and CIGRE.;5. University of Tokyo Yasuji Sekine joined the University of Tokyo in April 1959 after obtaining a Dr. of Eng. degree from the same university. He is currently a Professor in charge of power system engineering of the same university. He has been awarded many prizes from the Institute of Electrical Engineers of Japan and served as President of the Institute for the year 1989. He is currently President of PSCC, President of Japanese National Committee of CIGRE, a member of the administrative council and executive committee of CIGRE, Japanese representative of IEC Council, chairman of IEC/TC 82 (Photovoltaic Energy System) and a Japanese representative of IEC/TC 90 (Superconductivity). He is also an IEEE Fellow and a member of the Royal Swedish Academy of Engineering Sciences and the Japan Engineering Academy. |
| Abstract: | Voltage instability is now under intensive study in Japan, and some dynamic methods for analyzing voltage collapse have already been presented. However, the suitability of load models used in the methods and the generality of the results have not been verified. In this paper, useful voltage collapse data acquired in real power systems are presented. The measured data are compared with the result of dynamic digital simulation to verify the suitability of an induction motor load model. In the latter half of this paper, dynamic simulations of voltage collapse with consideration of generator dynamics are carried out. An interconnected power model system with 10 nodes is analyzed. The generality of basic characteristics concerning voltage collapse which have already been obtained without considering generator dynamics is verified by such simulations. |
| Keywords: | Voltage stability voltage collapse transient analysis induction motor model |