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Title: STATCOM with the structure of main-auxiliary inverter
Other Titles: 采用主從型逆變器結構的靜態同步補償器
Authors: Wang, J
Wang, M
Tsang, KM 
Keywords: Multilevel inverter
Main-auxiliary inverter
Issue Date: 2003
Publisher: 中国电机工程学会
Source: 中国电机工程学报 (Proceedings of the Chinese Society for Electrical Engineering), 2003, v. 23, no. 11, p. 99-103 How to cite?
Journal: 中国电机工程学报 (Proceedings of the Chinese Society for Electrical Engineering) 
Abstract: This paper aimed at reactive power compensation of three-phase balancing loads for 6kV medium-voltage source, and proposed a new type of main-auxiliary structure STATCOM (static synchronous compensator) that can be directly connected to power source. This structure combined the characteristics of both diode-clamped multilevel inverter and cascaded multilevel inverter: the main inverter took the form of three-level diode-clamped inverter, while the auxiliary inverter adopted H bridge (full bridge) inverter. The three auxiliary H-bridge inverters were connected to the corresponding phase of main inverter in series, so that both of them constituted a five-level hybrid inverter. In this paper, the auxiliary H-bridge inverter was designed to produce a square wave voltage whose frequency equaled that of AC power supply, and the square wave acted as basic part of expected output phase voltage. Main inverter had two functions: one was to generate the compensatory part of expected output phase voltage, the other was to compensate harmonic component of output voltage. In the end, the superiority of the proposed STATCOM structure was validated by simulation.
ISSN: 0258-8013
Rights: © 2003 中国学术期刊电子杂志出版社。本内容的使用仅限于教育、科研之目的。
© 2003 China Academic Journal Electronic Publishing House. It is to be used strictly for educational and research purposes.
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