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基于空间矢量调制的星形级联H桥SVG直流侧电压控制方法研究

, PP. 23-32

Keywords: 级联H桥SVG,空间矢量调制,直流侧电压控制,能量函数

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Abstract:

详细分析了空间矢量调制方法在级联H桥静止无功发生器(SVG)直流侧电压波动控制中的应用,提出基于空间矢量的直流侧电压三层控制结构第一层为总直流侧电压控制;第二层为层间均压控制,层与层之间采用相移空间矢量调制方法;第三层为层内三相之间直流侧均压控制。通过选择合适空间矢量冗余状态实现直流侧电压稳定和减小直流侧电压波动。实验结果验证了该方法的正确性和有效性。

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