| 三电平变流器多载波PWM控制技术研究 |
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| 引用本文： | 康劲松,巫影,张烨,陶生桂.三电平变流器多载波PWM控制技术研究[J].同济大学学报(自然科学版),2010,38(1). |
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| 作者姓名： | 康劲松 巫影 张烨 陶生桂 |
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| 作者单位： | 1. 同济大学,电子与信息工程学院,上海,201804
2. 海军工程大学,船动学院,湖北,武汉,430023 |
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| 摘 要： | 对二极管箝位型和飞跨电容型两种三电平变流器拓扑的多载波PWM(脉冲宽度调制)控制策略进行研究,重点对这两种拓扑结构中存在的中点电位不平衡问题,以及不同拓扑结构所适用的多载波PWM方法,进行了理论分析和论证;通过Matlab/Simulink软件的仿真研究,分析了在不同调制度下输出电压的谐波分布和谐波畸变率,确定了载波层叠法与载波移相法的拓扑结构实用类型,论证了多载波PWM控制策略的实用性和可行性.
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| 关 键 词： | 三电平变流器 多载波PWM控制 中点电位偏离 谐波分布 |
Carrier-PWM Control Strategies of Three-Level Converters |
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| KANG Jingsong,WU Ying,ZHANG Ye and TAO Shenggui.Carrier-PWM Control Strategies of Three-Level Converters[J].Journal of Tongji University(Natural Science),2010,38(1). |
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| Authors: | KANG Jingsong WU Ying ZHANG Ye and TAO Shenggui |
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| Institution: | KANG Jingsong1,WU Ying2,ZHANG Ye1,TAO Shenggui1(1.College of Electronic , Information Engineering,Tongji University,Shanghai 201804,China,2.College of Naval Architecture , Power,Naval University of Engineering,Wuhan 430033,China) |
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| Abstract: | This paper presents researches on the pulse width modulation(PWM) strategies and the principal for three-level diode-clamped and flying-capacitor converters,especially,the neutral-point unbalanced problem and the control strategies for different topological structures.An investigation was made of the harmonic wave distribution and the aberration rate of the line-voltage in different modulation rates on the basis of the Matlab/Simulink software,which determines the practical topology types in two different m... |
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| Keywords: | three-level inverters carrier-PWM strategies neutral-point departure harmonic-wave distribution |
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