单相LCL型并网逆变器设计  

Design of single-phase LCL grid-connected inverter

作　　者：姚爱芬 陈剑美 姜丽媛 陈鹏 韩伟楠 YAO Aifen;CHEN Jianmei;JIANG Liyuan;CHEN Peng;HAN Weinan(School of Electronic and Electrical Engineering,Cangzhou Jiaotong College,Cangzhou,Hebei 061100,China)

机构地区：[1]沧州交通学院电子与电气工程学院,河北沧州061100

出　　处：《计算机应用文摘》2023年第6期77-80,共4页Chinese Journal of Computer Application

基　　金：沧州市科重点研发计划指导项目:光伏发电系统并网逆变器及其控制策略的研究(204103003);河北省高等学校科学技术研究青年基金项目:微网系统并网逆变器及其控制策略研究(QN2021303);沧州市科重点研发计划指导项目:分布式光伏发电的DC/DC变换器设计(204103001);沧州市科重点研发计划指导项目:集中式大功率储能并网逆变器控制策略研究.(213103002)。

摘　　要：为了得到输出波形稳定且可以成功并网的单相并网逆变器,文章以LCL滤波器作为逆变器的滤波设备,但其固有的谐振尖峰不利于系统的稳定,所以在控制环节上,文章设计了基于电容电流和并网电流反馈的无源阻尼并网控制策略,来消除谐振尖峰的影响。为了验证设计方案,在Matlab/Simulink中搭建了单相并网逆变器的仿真模型,结果表明,有源阻尼环节能有效抑制谐波振荡且具有较好的动态特性。In order to obtain a single-phase grid-connected inverter with stable output waveform and successful grid connection,this paper determines LCL filter as the filter link of the inverter,but its inherent resonance peak is not conducive to the stability of the system.Therefore,in the control.link,this paper designs an active damping grid-connected control strategy based on capacitor current.and grid-connected current feedback to eliminate the influence of resonance peak.Finally,the simulation model of single-phase grid-connected inverter is built in Matlab/Simulink.The results show that the active damping link can effectively suppress harmonic oscillation and has good dynamic characteristics.

关 键 词：单相并网逆变器 LCL滤波器 无源阻尼法 

分 类 号：TM464[电气工程—电器]