基于噪声源阻抗提取的单相逆变器电磁干扰滤波器的设计  

Electromagnetic Interference Filter Design of Single-Phase Inverter Based on the Noise Source Impedance Extraction

作　　者：江师齐 刘艺涛 银杉 彭建春[1] Jiang Shiqi;Liu Yitao;Yin Shan;Peng Jianchun(College of Mechatronics and Control Engineering,Shenzhen University,Shenzhen 518000 China;Microsystem and Terahertz Research Center,China Academy of Engineering Physics,Chengdu 610200 China)

机构地区：[1]深圳大学机电与控制工程学院,深圳518000 [2]中国工程物理研究院微系统与太赫兹研究中心,成都610200

出　　处：《电工技术学报》2019年第17期3552-3562,共11页Transactions of China Electrotechnical Society

基　　金：广东省自然科学基金资助项目-博士启动(2017A030310317);深圳市科技计划基础研究项目(JCYJ20170817100322198)资助

摘　　要：研究了一种单相逆变器传导电磁干扰(EMI)噪声源阻抗的提取方法,并在此基础上提出了一种高效的EMI滤波器设计方法。该方法可以分别考虑共模(CM)和差模(DM)噪声源阻抗的影响,对滤波器进行精确的需求分析和设计。为了进一步提高噪声源阻抗检测精确性和滤波器设计的有效性,利用RLC阻抗分析仪对测试元件的阻抗频率特性进行了精确分析。最后,在PLECS仿真环境下对该方法的可行性进行了检验,并且以单相SiC MOSFET逆变器为例对该方法的有效性进行了实验验证。实验结果表明,利用该方法设计的EMI滤波器针对性强、可靠性高,可以大幅度减少EMI滤波器设计的时间成本。This paper studied a method of extracting the Electromagnetic interference(EMI)noise source impedance of a single-phase inverter.Based on this,an effective EMI filter design method was proposed.This approach allows accurate filter requirements analysis and design to take the effects of common mode(CM)and differential mode(DM)noise source impedances into account.In order to further improve the accuracy of noise source impedance detection and the effectiveness of filter design,this paper also used the RLC impedance analyzer to accurately analyze the impedance frequency characteristics of the test components.Finally,the feasibility and effectiveness of this method was tested in simulation and experiment based on a single-phase SiC MOSFET inverter.The results show that the EMI filter designed by the proposed method has strong pertinence and high reliability without time-consuming rectification.

关 键 词：电磁干扰 电磁干扰滤波器 噪声源阻抗 共模 差模 单相逆变器 

分 类 号：TM464[电气工程—电器]