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Novel control strategies for HVDC system with self-contained converter |
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| Authors: | Yukio Tokiwa Fumitoshi Ichikawa Kenichi Suzuki Haruhisa Inokuchi Syunichi Hirose Kazuaki Kimura |
| Affiliation: | 1. Tokyo Electric Power Co Yukio Tokiwa graduated in 1962 from the Electrical Department of the Metropolitan Setagaya Technical School. He joined Tokyo Electric Power Co. in April of the same year. He graduated from the TEPCO Educational College in 1973. He has been engaged in research on power electronics applied technology at Technical Engineering Center since 1987.;2. Tokyo Electric Power Co Fumitoshi Ichikawa graduated from the Department of Electrical Engineering, Shibaura Institute of Technology. He joined Tokyo Electric Power Co. in April of the same year. He has been engaged in research on power electronics applied technology at Technical Engineering Center since 1987.;3. Tokyo Electric Power Co Kenichi Suzuki graduated in 1977 from Scientific Technology High School. He joined Tokyo Electric Power Co. in April of the same year. He graduated from the TEPCO Educational College in 1985. He has been engaged in research on power electronics applied technology at Technical Engineering Center since 1985.;4. Toshiba Corporation Haruhisa Inokuchi obtained a Master's degree in 1969 at the Engineering Research Division of Kyushu University. he joined Toshiba Corp. Fuchu Works in April of the same year. He has been working in the field of power electronics such as HVDC, SVC, power supply for electric railway, etc., since then.;5. Toshiba Corporation Syunichi Hirose obtained a Master's degree in 1977 from Nagoya University. He joined Toshiba Corp. Fuchu Works in April of the same year. He has been working in the field of power electronics such as HVJX, SVC, fuel cells, power supply for nuclear fusion, etc., since then.;6. Toshiba Corporation Kazuaki Kimura graduated from Yun Technical High School in 1979 and from Toshiba Computer School in 1980. He joined Toshiba Corp. Fuchu Works in April of the same year. he has been working in the field of power electronics such as HVDC. SVC, power supply for fuel cells, etc. since then. |
| Abstract: | This paper discusses newly developed control strategies of a self-commutated converter applied to the HVDC system. An upper and lower power-limited dc voltage control establishes high performance in a two-terminal HVDC system. A voltage margin method to reverse dc transmission power also is introduced. Even when the communication system is shut down, if required, dc transmission power can be changed with the authors' proposed controls applied to the terminal control. Furthermore, the dc voltage control scheme with two-stage voltage control characteristic is presented for multiterminal HVDC system use. When one terminal is collapsed, the multiterminal HVDC system can be operated because of the proposed control characteristics. Simulator studies were carried out to verify the proposed control performance in the two-terminal HVDC system and successful test results such as power reversal and a terminal start-up during other terminal operations are shown. |
| Keywords: | HVDC self-commutated converter dc voltage control multiterminal (HVDC transmission) voltage margin voltage source-type converter two-terminal (HVDC transmission) single-terminal operation two-stage dc voltage control power flow reversal control |