单相逆变器低频纹波抑制方法探讨  

Discussion on the method of low-frequency ripple suppression of single-phase inverter

作　　者：蔡高超 黄炎尧 陈亦文[1,2] Cai Gaochao;Huang Yanyao;Chen Yiwen(College of Electrical Engineering and Automation,Fuzhou University,Fuzhou 350116;Fujian Provincial Key Laboratory of New Energy Power Generation and Energy Conversion(Fuzhou University),Fuzhou 350116)

机构地区：[1]福州大学电气工程与自动化学院,福州350116 [2]福建省新能源发电与电能变换重点实验室(福州大学),福州350116

出　　处：《电气技术》2019年第12期7-12,共6页Electrical Engineering

基　　金：福建省自然科学基金项目（2018J01757）

摘　　要：单相逆变器输入侧往往存在低频脉动电流,需要利用很大的电解电容进行滤波,为了取得更好的滤波效果并减小滤波电路参数,有必要采用功率解耦技术解决低频纹波抑制问题。目前文献报道的单相逆变器低频纹波抑制方法大致分为5种情况:DC级功率解耦、两级式功率解耦、AC级功率解耦、三端口功率解耦和无电解电容功率解耦。本文从电路拓扑、电路参数、解耦效果和控制策略几个方面展开介绍,并对以上几种技术进行了比较和评估,总结各功率解耦技术的优缺点及适用范围。The input side of single-phase inverter often has low frequency pulsation current, which needs to be filtered by large electrolytic capacitor. In order to obtain better filtering effect and improve the service life of the filter, it is necessary to use power decoupling technology to solve the problem caused by low frequency ripple. At present, the low-frequency ripple suppression methods of single-phase inverters reported in literature can be roughly divided into four cases: DC power decoupling, two-stage power decoupling, AC power decoupling and three-port power decoupling. This paper introduces the circuit topology, decoupling effect, control strategy and circuit parameters, compares and evaluates the above technologies, summarizes the advantages and disadvantages of each power decoupling technology, and seeks a reasonable idea for future power decoupling research.

关 键 词：单相 逆变器 纹波抑制 功率解耦 

分 类 号：TM464[电气工程—电器]