Review of Power Decoupling Methods for Micro-Inverters Used in PV Systems  

作　　者：Yonggao Zhang Jian Xiong Peng He Shuai Wang 

机构地区：[1]School of Electrical Engineering and Automation,East China Jiaotong University,Nanchang 330013,China

出　　处：《Chinese Journal of Electrical Engineering》2018年第4期26-32,共7页中国电气工程学报（英文）

基　　金：Supported by National Natural Science Funds(51467006,51467005);Science and Technology Industrial Planning Project of Jiangxi Province,China(20151BBE50118,20161BBH80032);Science and Technology Project of Education Department in Jiangxi Province(GJJ160489).

摘　　要：In single-phase photovoltaic(PV)systems,power mismatch between input and output terminal leads to power pulsation,seriously affecting maximum power point tracking(MPPT).Paralleling an electrolytic capacitor(e-cap)across the PV panel to smooth power pulsation seems to be an unreliable method owing to its short lifespan.Various power decoupling methods used in micro-inverters have been proposed to solve the problem.These methods were categorized.Some of them were introduced in this paper regarding efficiency,cost and technical features.Special novel methods proposed in recent years were presented to show the development trend of micro-inverter.Then,conclusion and comparisons were made.Finally,a potential technological route was proposed by author for further study on power decoupling.

关 键 词：PHOTOVOLTAIC MICRO-INVERTER power decoupling MPPT 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]