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减少间接矩阵变换器共模电压的改进空间矢量调制策略

DOI: 10.13334/j.0258-8013.pcsee.2014.24.004, PP. 4015-4021

Keywords: 共模电压,间接矩阵变换器,空间矢量调制,零矢量

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Abstract:

为抑制间接矩阵变换器工作时产生的共模电压,分析传统空间矢量调制下间接矩阵变换器的共模电压分布规律,并提出一种减少共模电压的改进空间矢量调制方法。该方法的核心思想在于整流级和逆变级的零矢量重组,完全不同于传统空间矢量调制。该方法一方面大幅度的降低了共模电压,另一方面降低了逆变级的开关损耗,改变了系统开关损耗分布。实验和仿真结果验证了该方法的有效性。

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