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基于高频隔离的级联型H桥补偿器的仿真

, PP. 108-112

Keywords: 负序电流补偿,双向DC-DC变换器,三相四线制系统,级联补偿,移相控制

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Abstract:

提出了一种新型的基于高频隔离的级联H桥式补偿装置。与传统应用于三相三线制系统星形联结的级联变换器不同的是,此拓扑引入一个带有高频变压器的三端口双向直流变换器,可以补偿系统中的负序电流,使得能量可以在各相间流动。此电路可用于三相三线或四线制系统,能降低系统直流侧二次脉动。通过适当的控制方法,可以补偿负序、无功以及谐波电流。文章通过对不同负载的仿真分析,证明了电路拓扑的可行性。

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