级联H桥多电平逆变器空间矢量调制与三角载波调制统一理论

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摘要三角载波PWM（TCPWM）法和空间矢量PWM（SVPWM）法是级联H桥多电平逆变器主要的PWM调制方法。这两种调制方法存在一定的本质关系,但目前还没有很好地解决关于这两种方法的统一理论。针对这一问题,深入研究了多电平SVPWM序列与TCPWM的统一,通过在TCPWM调制波中叠加零序分量得到与SVPWM完全吻合的序列,最终推导出n电平含任意段数的SVPWM序列与TCPWM的统一,最后通过实验验证了该统一理论的正确性。

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	刘云峰
	何英杰
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	刘进军

关键词 ：调制波分解策略, 空间矢量脉宽调制, 三角载波PWM

Abstract：Triangular carrier pulse width modulation (TCPWM) method and the space vector pulse width modulation (SVPWM) method are the two main control methods used in cascaded H bridge multilevel converter. There is a certain relationship between this two modulation strategies, but this relationship has not been well studied so far. Thus, this paper studies the multi-level SVPWM modulation sequence and TCPWM unity. By superimposing zero-sequence onto TCPWM modulation wave, the same effect with the SVPWM modulation is achieved. At last, this paper deduces the unity of the SVPWM and TCPWM in n level with arbitrary number of segment sequences. Simulation and experimental results verify the correctness of the unified theory.

Key words： Strategy of modulation wave decomposition space vector pulse width modulation triangular carrier PWM

收稿日期: 2014-06-09 出版日期: 2016-09-01

PACS:

TM464

基金资助:国家自然科学基金（50907052）,陕西省自然科学基金（2014JQ7271）和输配电装备及系统安全与新技术国家重点实验室开发基金（2007DA10512714405）资助项目

作者简介: 刘云峰男,1989年生,硕士研究生,研究方向为多电平技术。E-mail: 1025525452@qq.com;何英杰男,1978年生,博士,副教授,硕士生导师,研究方向为多电平技术、有源电力滤波器和无功补偿。E-mail: yjhe@mail.xjtu.edu.cn（通信作者）

引用本文:

刘云峰, 何英杰, 王超, 刘进军. 级联H桥多电平逆变器空间矢量调制与三角载波调制统一理论[J]. 电工技术学报, 2016, 31(16): 114-123. Liu Yunfeng, He Yingjie, Wang Chao, Liu Jinjun. The Unity Theory Between Space Vector and Triangular Carrier PWM Modulation Strategy in Cascaded H Bridge Multilevel Inverter. Transactions of China Electrotechnical Society, 2016, 31(16): 114-123.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2016/V31/I16/114

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