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duo dian ping ni bian qi jian hua kong jian shi liang diao zhi suan fa
Pages: 218-223
Year: Issue:  8
Journal: Transactions of China Electrotechnical Society

Keyword:  Multi-level invertersspace vector pulse width modulationsimplified algorithmoptimized switching sequences;
Abstract: 基于两电平的多电平逆变器空间矢量脉宽调制简化算法是根据参考矢量的幅值和相位确定参考矢量终点所在小六边形区域,先把参考矢量分解成多电平基本矢量与两电平参考矢量,然后借助传统的两电平七段法合成两电平参考矢量,得到两电平优化开关序列,最后将该优化开关序列与多电平基本矢量相结合得到多电平优化开关序列。该算法计算基本矢量作用时间及生成多电平优化开关序列的复杂性与多电平逆变器的电平数无关。二极管钳位型三电平逆变器的仿真与实验结果验证了所提方法的正确性与可行性。
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