Abstract：A new compensator with cascade H-bridge inverter is proposed in this paper. Comparing with traditional compensator based on wye-connected cascade inverters used in three-phase three-wire high voltage system, the new topology conquers the difficulty of compensating negative-sequence current and makes the energy exchange between phase and phase by bringing in a three-port bi-directional converter with a three windings high frequency transformer. And it can also be applied in three-phase four-wire system. DC-link voltage pulsation can be weaken in this topology. It can compensate negative-sequence current, reactive and harmonic current by proper controlling strategy. Simulation results of different loads verify the feasibility of the topology.
黄尧, 贾鹏宇, 刘建强, 郑琼林. 基于高频隔离的级联型H桥补偿器的仿真[J]. 电工技术学报, 2011, 26(5): 108-112.
Huang Yao, Jia Pengyu, Liu Jianqiang, Zheng Qionglin. Simulation of Compensator With Cascade H-Bridge Inverter Based on High Frequency Isolated Converters. Transactions of China Electrotechnical Society, 2011, 26(5): 108-112.
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2011, Vol. 26 
