| 一种新型多电平SVPWM控制策略的研究 |
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| 引用本文： | 侯世英,徐曦,林茂,刘早晨.一种新型多电平SVPWM控制策略的研究[J].电子技术应用,2009,35(10). |
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| 作者姓名： | 侯世英 徐曦 林茂 刘早晨 |
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| 作者单位： | 重庆大学,输配电装备及系统安全与新技术国家重点实验室,重庆,400044 |
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| 摘 要： | 随着H桥逆变器电平数的增加,其空间矢量调制算法(SVPWM)也越来越复杂。提出一种任意电平H桥逆变器的SVPWM算法,通过等效矢量变换,可将两电平逆变器中合成参考矢量的电压矢量及其作用时间推广到任意电平。以三电平和五电平H桥级联型多电平变换器为控制对象,对该算法的正确性进行了仿真验证。
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| 关 键 词： | H桥级联型多电平变换器 多电平 空间矢量调制 极值法 |
Study on a novel multilevel SVPWM scheme |
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| Abstract: | With increase of inverter level, the space vector pulse-width modulation (SVPWM) of multi-Ievel inverters is getting more complex. This paper proposed a novel SVPWM control algorithm for arbitrary-number-lever inverters. The voltage vector and its dwell time of two-level inverters can be spread to arbitrary-number-level inverter through the equivalent vector transformation. Using 3-level and 5-level cascade multilevel converter as control objects, the superiority of the algorithm was tested and verified by simulation. |
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| Keywords: | H-bridge cascaded multilevel inverter multi- level voltage space vector extremuni method |
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