| DC-link电容器在线状态监测方法综述 |
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| 引用本文： | 姚芳,王槟,唐圣学,黄凯,李志刚. DC-link电容器在线状态监测方法综述[J]. 电力自动化设备, 2019, 39(11) |
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| 作者姓名： | 姚芳 王槟 唐圣学 黄凯 李志刚 |
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| 作者单位： | 河北工业大学 电气工程学院 省部共建电工装备可靠性与智能化国家重点实验室，天津 300130; 河北工业大学 电气工程学院 河北省电磁场与电器可靠性重点实验室，天津 300130,河北工业大学 电气工程学院 省部共建电工装备可靠性与智能化国家重点实验室，天津 300130; 河北工业大学 电气工程学院 河北省电磁场与电器可靠性重点实验室，天津 300130,河北工业大学 电气工程学院 省部共建电工装备可靠性与智能化国家重点实验室，天津 300130; 河北工业大学 电气工程学院 河北省电磁场与电器可靠性重点实验室，天津 300130,河北工业大学 电气工程学院 省部共建电工装备可靠性与智能化国家重点实验室，天津 300130; 河北工业大学 电气工程学院 河北省电磁场与电器可靠性重点实验室，天津 300130,河北工业大学 电气工程学院 省部共建电工装备可靠性与智能化国家重点实验室，天津 300130; 河北工业大学 电气工程学院 河北省电磁场与电器可靠性重点实验室，天津 300130 |
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| 基金项目： | 国家自然科学基金资助项目(51477040)；国家科技支撑计划项目(2015BAA09B01)；河北省自然科学基金资助项目(E2017202284)；河北省教育厅青年基金资助项目(QN2017316) |
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| 摘 要： | 直流支撑(DC-link)电容器是电力电子变换器的关键器件之一,它的可靠性会影响整个系统的可靠性。状态监测是估计电容器健康状态的一种有效手段,综合分析了电容器的健康状态参数和性能状态参数,针对近年来电容器的在线状态监测研究进行分类,将其分为了传感器法、注入法、电路模型法和智能监测法;介绍每种方法的原理和手段,对比分析各种方法的优缺点,其次,针对研究成果的监测对象和监测参数进行数据统计分析;最后提出电容器状态监测的后续研究方向。
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| 关 键 词： | 直流支撑电容器；电容值；状态监测；ESR；参数辨识 |
Review of online condition monitoring methods for DC-link capacitor |
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| YAO Fang,WANG Bing,TANG Shengxue,HUANG Kai and LI Zhigang. Review of online condition monitoring methods for DC-link capacitor[J]. Electric Power Automation Equipment, 2019, 39(11) |
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| Authors: | YAO Fang WANG Bing TANG Shengxue HUANG Kai LI Zhigang |
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| Affiliation: | 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,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,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,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 and 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: | DC-link capacitor is one of the key components in power electronic converter, its reliability will affect the reliability of the whole system. Condition monitoring is an effective method to estimate the health condition of capacitors. The health state parameters and performance state parameters of capacitors are comprehensively analyzed. The online condition monitoring methods of capacitors are classified into four categories: method based on sensor, method based on signal injection, method based on circuit model and method based on intelligent monitoring. The principle and means of each method are introduced, and their advantages and disadvantages are compared. Secondly, statistical analysis of monitored objects and monitored parameters based on research results is carried out. Finally, the following research direction of capacitor condition monitoring is proposed. |
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| Keywords: | DC-link capacitor capacitance condition monitoring ESR parameter identification |
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