电源学报

一种可降低共模电压的简化调制方法

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魏金成 ¹ , 朱崇婧中国电源学会学生会员 ¹ , 邱晓初 ² , 胡秋宇 ¹

电源学报 | 电力电子变换器建模与控制 2026,24(6): 74-83

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电源学报 |电力电子变换器建模与控制 2026 , 24 (6) : 74 -83

一种可降低共模电压的简化调制方法

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魏金成¹, 朱崇婧中国电源学会学生会员¹, 邱晓初², 胡秋宇¹

作者信息

^1.西华大学电气与电子信息学院，成都　610039

^2.四川大学锦江学院电气与电子信息工程学院，成都　620860

通讯作者:

邱晓初（1964—　），男，通信作者，博士，副教授。研究方向：电力电子与电力传动，电能质量控制等。E-mail：xh_qiusir@mail.xhu.edu.cn。

作者简介:

魏金成（1966—　），男，博士，教授。研究方向：电力电子及电能质量等。E-mail：320928346@qq.com。

朱崇婧（2000—　），女，中国电源学会学生会员，硕士研究生。研究方向：电力电子及电能变换。E-mail：zhuchongjing@stu.xhu.edu.cn。

胡秋宇（1998—　），男，硕士研究生。研究方向：多电平逆变器拓扑结构。E-mail：591058934@qq.com

Simplified Modulation Method for Reducing Common-mode Voltage

Jincheng WEI¹, Chongjing ZHU Student Member, CPSS¹, Xiaochu QIU², Qiuyu HU¹

Affiliations

^1.School of Electrical Engineering and Electronic Information, Xihua University, Chengdu 610039, China

^2.School of Electrical and Electronic Information Engineering, Sichuan University Jinjiang College, Chengdu 620860, China

出版时间: 2026-06-30 doi: 10.13234/j.issn.2095-2805.2026.6.74

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摘要

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针对三电平电压空间矢量脉宽调制方法会导致逆变器产生共模电压CMV（common-mode voltage）的问题，提出一种可降低CMV的简化调制方法。首先将三电平电压空间矢量图通过坐标平移简化为两电平空间矢量图；其次根据开关状态产生CMV的原理，选用合适的矢量调整空间矢量的开关序列；最后通过推导得出调制波的统一表达式。对比实验结果可知，所提方法能够有效减轻计算负担，并将CMV限制到直流侧电压的1/6。

关键词

三电平逆变器 / 简化解析算法 / 共模电压

Abstract

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Aimed at the problem that the three-level voltage space vector pulse width modulation method will cause the generation of common-mode voltage (CMV) in an inverter, a simplified modulation method that can reduce the CMC is proposed in this paper. First, the three-level voltage space vector diagram is simplified to a two-level space vector diagram by coordinate translation. Second, according to the principle of generating CMV by switching states, suitable vectors are selected to adjust the switching sequence of space vectors. Finally, the unified expression of modulated wave is obtained by derivation. A comparison with experimental results shows that the proposed method can effectively reduce the computational load and limit the CMV to 1/6 of the DC-side voltage.

Key words

Three-level inverter / simplified analytical algorithm / common-mode voltage (CMV)

引用本文

魏金成, 朱崇婧中国电源学会学生会员, 邱晓初, 胡秋宇. 一种可降低共模电压的简化调制方法. 电源学报, 2026 , 24 (6) : 74 -83 . DOI: 10.13234/j.issn.2095-2805.2026.6.74

Jincheng WEI, Chongjing ZHU, Xiaochu QIU, Qiuyu HU. Simplified Modulation Method for Reducing Common-mode Voltage[J]. Journal of Power Supply, 2026 , 24 (6) : 74 -83 . DOI: 10.13234/j.issn.2095-2805.2026.6.74

参考文献

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2026年第24卷第6期

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文章信息

doi: 10.13234/j.issn.2095-2805.2026.6.74

接收时间：2024-03-20
首发时间：2026-10-29
出版时间：2026-06-30

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收稿日期：2024-03-20
修回日期：2024-07-08
录用日期：2024-07-15

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作者信息

^1.西华大学电气与电子信息学院，成都　610039

^2.四川大学锦江学院电气与电子信息工程学院，成都　620860

通讯作者:

邱晓初（1964—　），男，通信作者，博士，副教授。研究方向：电力电子与电力传动，电能质量控制等。E-mail：xh_qiusir@mail.xhu.edu.cn。

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https://castjournals.cast.org.cn/joweb/dyxb/CN/10.13234/j.issn.2095-2805.2026.6.74

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2种不同金属材料的力学参数

科 Family	属数 Number of genus	种数 Number of species	占总种数比例 Percentage of total species (%)	属 Genus	种数 Number of species	占总种数比例 Percentage of total species (%)
鹅膏菌科Amanitaceae	2	11	5.26	鹅膏菌属 Amanita	10	4.78
小菇科 Mycenaceae	2	12	5.74	丝盖伞属 Inocybe	5	2.39
多孔菌科 Polyporaceae	8	14	6.70	蜡蘑属 Laccaria	5	2.39
红菇科 Russulaceae	3	23	11.00	小皮伞属 Marasmius	6	2.87
				小菇属 Mycena	11	5.26
				光柄菇属 Pluteus	5	2.39
				红菇属 Russula	17	8.13
				栓菌属 Trametes	5	2.39

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