为改善级联型多电平逆变器输出电压波形质量，对通过控制逆变单元开关角实现级联多电平逆变器谐波控制的方法进行了分析研究。
In this paper, the means of harmonics control by selecting switching angles are analyzed for improving quality of output voltage in cascaded multilevel inverter.
从高频合成理论的角度出发，提出了基于理想开关的多电平结构的基本拓扑单元。
Based on the analysis of converters with Waveform High Frequency Synthesis, the basic cells of multilevel topology with ideal switches and IGCTs are both proposed.
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