电源学报

MMC子模块IGBT开路故障与电压传感器故障联合诊断方法

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刘靖伟 ¹ , 马建军中国电源学会会员 ² , 陈阳 ³ , 朱淼 ¹ , 文书礼 ¹

电源学报 | 可靠性与诊断 2025,23(8): 329-341

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电源学报 |可靠性与诊断 2025 , 23 (8) : 329 -341

MMC子模块IGBT开路故障与电压传感器故障联合诊断方法

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刘靖伟¹, 马建军中国电源学会会员², 陈阳³, 朱淼¹, 文书礼¹

作者信息

^1.上海交通大学电力传输与功率变换控制教育部重点实验室，上海　200240

^2.上海交通大学国家电投智慧能源创新学院，上海　200240

^3.国网江苏省电力有限公司电力科学研究院，南京　211103

通讯作者:

朱淼（1979—　），男，通信作者，博士，教授。研究方向：新能源并网，混合交直流功率变换，柔性交直流输配电。E-mail：miaozhu@sjtu.edu.cn。

作者简介:

刘靖伟（1999—　），男，硕士研究生。研究方向：MMC系统故障诊断。E-mail：liujingwei@sjtu.edu.cn。

马建军（1992—　），男，中国电源学会会员，博士，助理教授。研究方向：电力电子化电力系统，新能源并网。E-mail：j.j.ma@sjtu.edu.cn。

陈阳（1990—　），男，博士，高级工程师。研究方向：模块化多电平换流器，柔性输电关键技术。E-mail：chenyangcn@163.com。

文书礼（1987—　），男，博士，副教授。研究方向：移动式微电网，储能优化配置，深度学习与智能算法。E-mail：wenshuli@sjtu.edu.cn。

Joint Diagnosis Method for IGBT Open-circuit Fault and Voltage Sensor Fault in MMC Submodule

Jingwei LIU¹, Jianjun MA Member, CPSS², Yang CHEN³, Miao ZHU¹, Shuli WEN¹

Affiliations

^1.Key Laboratory of Control of Power Transmission and Conversion, Ministry of Education, Shanghai Jiao Tong University, Shanghai 200240, China

^2.College of Smart Energy, Shanghai Jiao Tong University, Shanghai 200240, China

^3.Electric Power Research Institute, State Grid Jiangsu Electric Power Co., Ltd., Nanjing 211103, China

出版时间: 2025-12-30 doi: 10.13234/j.issn.2095-2805.2025.8.329

文章导航

摘要

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模块化多电平换流器MMC（modular multilevel converter）系统中子模块数量众多，其开关故障与电压传感器故障多发，且部分故障特征相似，影响系统运行可靠性。提出1种基于滑模观测器的子模块IGBT开路和电压传感器故障联合诊断方法。该方法首先利用MMC系统桥臂电压实际值与测量值设计故障检测策略，检测MMC系统是否发生故障并实现桥臂级故障定位。在此基础上，基于滑模观测器，实现故障桥臂内子模块电容电压的在线估计，并与测量值进行对比，实现子模块级故障定位。最后通过仿真验证了所提故障诊断算法的有效性和鲁棒性。

关键词

模块化多电平换流器子模块 / 故障诊断 / IGBT开路故障 / 电压传感器故障 / 滑模观测器

Abstract

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In a modular multilevel converter (MMC) system, there are numerous submodules, and switch faults and voltage sensor faults occur frequently. Some of these faults share similar characteristics, which can affect the system’s operation reliability. A joint diagnosis method for submodule IGBT open-circuit faults and voltage sensor faults based on a sliding mode observer is proposed. First, a fault detection strategy is designed using the actual and measured values of the MMC system’s arm voltage to detect faults in the MMC system and further achieve fault localization at the arm level. On this basis, the sliding mode observer is used to perform online estimation of the capacitor voltage within the faulted arm submodule, and the estimated values are compared with the measured values for submodule-level fault localization. Finally, simulation results verify the effectiveness and robustness of the proposed fault diagnosis algorithm.

Key words

Modular multilevel converter (MMC) submodule / fault diagnosis / IGBT open-circuit fault / voltage sensor fault / sliding mode observer

引用本文

刘靖伟, 马建军中国电源学会会员, 陈阳, 朱淼, 文书礼. MMC子模块IGBT开路故障与电压传感器故障联合诊断方法. 电源学报, 2025 , 23 (8) : 329 -341 . DOI: 10.13234/j.issn.2095-2805.2025.8.329

Jingwei LIU, Jianjun MA, Yang CHEN, Miao ZHU, Shuli WEN. Joint Diagnosis Method for IGBT Open-circuit Fault and Voltage Sensor Fault in MMC Submodule[J]. Journal of Power Supply, 2025 , 23 (8) : 329 -341 . DOI: 10.13234/j.issn.2095-2805.2025.8.329

基金

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国家自然科学基金资助项目(U2166216)

参考文献

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参考文献引证文献

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2025年第23卷第8期

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文章信息

doi: 10.13234/j.issn.2095-2805.2025.8.329

接收时间：2025-01-16
首发时间：2026-10-26
出版时间：2025-12-30

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出版历史

收稿日期：2025-01-16
修回日期：2025-03-21
录用日期：2025-04-12

基金

National Natural Science Foundation of China(U2166216)

国家自然科学基金资助项目(U2166216)

作者信息

^1.上海交通大学电力传输与功率变换控制教育部重点实验室，上海　200240

^2.上海交通大学国家电投智慧能源创新学院，上海　200240

^3.国网江苏省电力有限公司电力科学研究院，南京　211103

通讯作者:

朱淼（1979—　），男，通信作者，博士，教授。研究方向：新能源并网，混合交直流功率变换，柔性交直流输配电。E-mail：miaozhu@sjtu.edu.cn。

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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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