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Simplified multilevel space vector pulse-width modulation scheme based on two-level space vector pulse-width modulation

机译:基于两级空间矢量脉宽调制的简化多级空间矢量脉宽调制方案

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摘要

A novel simplified multilevel space vector pulse-width modulation (SVM) scheme is proposed based on the two-level SVM. The voltage vectors with same amplitude and phase angle are applied to the various power units of cascaded multilevel inverter (CMLI), and the refresh times of various vectors are delayed in order, thus the corresponding multilevel output voltage waveform is formatted. During every sampling period, only the on-times of main and auxiliary voltage vectors of one-stage unit are calculated based on a two-level SVM algorithm, so the computational complexity is independent on the unit-cascaded number. Then the algorithm is simplified, and the expandability is enhanced. The simulation and experimental results prove the validity and feasibility of the novel scheme.
机译:提出了一种基于两级支持向量机的新型简化多级空间矢量脉宽调制方案。将具有相同幅度和相位角的电压矢量应用于级联多电平逆变器(CMLI)的各个功率单元,并按顺序延迟各个矢量的刷新时间,从而格式化相应的多电平输出电压波形。在每个采样周期内,基于两级SVM算法仅计算一级单元的主电压矢量和辅助电压矢量的导通时间,因此计算复杂度与单元级联数无关。然后简化了算法,增强了可扩展性。仿真和实验结果证明了该方案的有效性和可行性。

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  • 来源
    《Power Electronics, IET》 |2012年第5期|p.609-616|共8页
  • 作者

    Wu F.J.;

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