A New Topology of Three-Level Reinjection Current Source Converter in Parallel
Yang Baofeng1, 2, Wu Zhenjun1, 2, Liu Yonghe3, Li Yaohua1
1. Chinese Academy of Sciences Beijing 100190 China 2. Graduate University of Chinese Academy of Sciences Beijing 100049 China 3. Inner Mongolia University of Technology Hohhot 010051 China
Abstract：A new topology of three-level reinjection current source converter in parallel is proposed. The control method and the operational principle are given. The circuit scheme with the proposed topology satisfies all requirements of multi-level harmonic reinjection principle. The EMTDC/PSCAD program is used here for the verification of the theoretical results derived earlier with the three-level configuration. The new three-level topology is easily extended to multi-level topology. Compared with the existing topology of multi-level reinjection current source converter in parallel, the reinjection switches being on-state average the dc output current, and therefore the rated current of the reinjection switches and the current change ratio during the switches transition are depressed. Also the steady zero current condition is provided to the main bridge switches by the reinjection switches, and the high capacity multi-tapped reactor can be eliminated.
杨宝峰, 吴振军, 刘永和, 李耀华. 一种新型并联三电平注入式电流型变换器拓扑[J]. 电工技术学报, 2009, 24(5): 67-72.
Yang Baofeng, Wu Zhenjun, Liu Yonghe, Li Yaohua. A New Topology of Three-Level Reinjection Current Source Converter in Parallel. Transactions of China Electrotechnical Society, 2009, 24(5): 67-72.
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2009, Vol. 24 
