无电解电容两级式逆变器控制策略与仿真计算研究  

Research on control strategy and simulation of two-stage inverter without electrolytic capacitor

作　　者：黄烈江 陈思超 王鹏程 安韵竹[2] 华赟 戴建刚 HUANG Liejiang;CHEN Sichao;WANG Pengcheng;AN Yunzhu;HUA Yun;DAI Jiangang(Hangzhou Xinmei Complete Electric Manufacturing Company Limited,Hangzhou,311200,China;School of Electrical and Electronic Engineering,Shandong University of Technology,Zibo 255049,China)

机构地区：[1]杭州欣美成套电器制造有限公司,浙江杭州311200 [2]山东理工大学电气与电子工程学院,山东淄博255049

出　　处：《山东理工大学学报（自然科学版）》2023年第6期69-73,共5页Journal of Shandong University of Technology:Natural Science Edition

摘　　要：现行逆变器中电解电容的故障率较高,逐渐凸显为影响电网逆变器实际使用寿命的技术瓶颈。为减小电压纹波,在两级式逆变器中加入解耦变换器,并采用MATLAB软件搭建了一种单相两级式逆变器并联解耦电路仿真模型,通过对比加解耦电路前后两级式逆变器的变化,得出增加解耦变换器对于减小母线电压纹波有明显的效果,验证了无电解电容两级式逆变器控制策略的有效性,相关研究结论可为电力工程逆变器的设计提供参考。The failure rate of electrolytic capacitors in current inverters is high,which gradually becomes the technical bottleneck affecting the actual service life of power grid inverters.In order to reduce the voltage ripple,this study adds decoupling converter to the two-stage inverter,and builds a simulation model of single-phase two-stage inverter parallel decoupling circuit using MATLAB software for verification.By comparing the changes before and after the two-stage inverter with and without the coupling circuit,it is concluded that adding decoupling converter is effective in reducing the bus voltage ripple,which verifies the effectiveness of the design,the relevant research conclusions can provide reference for the design of power engineering inverter.

关 键 词：电解电容 两级式逆变器 控制策略 解耦电路 

分 类 号：TM464[电气工程—电器]