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电网技术  2006 

9电平高压级联逆变器及其电压移位脉宽调制技术

, PP. 71-74

Keywords: 电压移位调制,级联H桥(CHB),谐波,失真,柔性输配电系统(FACTS)

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Abstract:

介绍了九电平级联H桥逆变器的拓扑结构及其常用的载波调制方式,即相角移位调制和电压移位调制。分析了电压移位调制技术,设计了多电平高压级联H桥逆变器。Matlab/Simulink仿真实验结果表明用电压移位脉宽调制技术设计的九电平级联H桥逆变器在较低的频率下谐波失真小、电压变化率低、在电力系统高压变频及柔性输配电系统等具有较高的实用价值。

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