| 基于虚拟空间矢量过调制策略的逆变器共模电压抑制方法 |
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| 引用本文： | 王顺,杨淑英,李一,谢震. 基于虚拟空间矢量过调制策略的逆变器共模电压抑制方法[J]. 电力自动化设备, 2022, 42(3): 76-81,96. DOI: 10.16081/j.epae.202111026 |
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| 作者姓名： | 王顺 杨淑英 李一 谢震 |
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| 作者单位： | 合肥工业大学 电气与自动化工程学院,安徽 合肥 230009 |
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| 基金项目： | 国家自然科学基金资助项目(51877062)；中国电力科学研究院有限公司研究项目(NYB51201902402)；台达电力电子科教发展计划项目(DREK202004) |
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| 摘 要： | 虚拟空间矢量调制(VSVM)技术因其在共模电压(CMV)抑制方面的独特优势而受到关注,但相较于空间矢量脉宽调制(SVPWM)策略,其线性调制范围较小,影响了逆变器的电压输出.分析了使用和弃用零矢量调制策略的CMV特性和线性调制范围,在此基础上提出了基于VSVM的过调制策略,推导出该策略下过调制补偿角与调制比之间的关系式...
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| 关 键 词： | 虚拟空间矢量调制 共模电压 过调制 调制范围 逆变器 |
Suppression method of inverter common-mode voltage based on virtual space vector over-modulation strategy |
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| WANG Shun,YANG Shuying,LI Yi,XIE Zhen. Suppression method of inverter common-mode voltage based on virtual space vector over-modulation strategy[J]. Electric Power Automation Equipment, 2022, 42(3): 76-81,96. DOI: 10.16081/j.epae.202111026 |
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| Authors: | WANG Shun YANG Shuying LI Yi XIE Zhen |
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| Affiliation: | School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230009, China;State Key Laboratory of Reliability and Intelligence of Electrical Equipment, School of Electrical Engineering, Hebei University of Technology, Tianjin 300130, China; Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province, School of Electrical Engineering, Hebei University of Technology, Tianjin 300130, China |
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| Abstract: | VSVM(Virtual Space Vector Modulation) technology has received wide attentions for its distinct merits in CMV(Common-Mode Voltage) suppression. Compared with SVPWM(Space Vector Pulse Width Modulation) strategy, the allowable linear modulation range of VSVM strategy is reduced, which affects the output voltage of the inverter. The CMV characteristics and the linear modulation range with and without zero-vector modulation strategy are analyzed. On this basis, an over-modulation strategy for VSVM strategy is proposed, and the mathematical relationship between the over-modulation compensation angles and the modulation ratios is deduced, and the implementation process of the proposed strategy is designed. Finally, the inverter CMV characteristics and the linear modulation range with the proposed strategy are analyzed by the experiments. The experimental results verify the correctness of theoretical analysis and the feasibility of the proposed strategy. |
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| Keywords: | virtual space vector modulation common-mode voltage over-modulation modulation range electric inverters |
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