阻抗型单相并网逆变器建模及控制策略研究  

Modeling and Control Strategy of Impedance Type Single-phase Grid-connected Inverter

作　　者：朱钦[1] 沈贵蓉[1] 陈一诚[2] 王志新[2] 徐颖晟[2] 史莉 陆斌锋 

机构地区：[1]上海市电力公司市南供电公司,上海200110 [2]上海交通大学电气工程系,上海200240 [3]上海纳杰电气成套有限公司,上海201111 [4]嘉兴清源电气科技有限公司,浙江嘉兴314031

出　　处：《华东电力》2013年第10期2035-2038,共4页East China Electric Power

基　　金：国家自然科学基金重点项目(60934005);国家863计划智能电网关键技术研发重大项目(2011AA05AA103);嘉兴市科技计划项目(2012BY9002)~~

摘　　要：针对传统的电压源型逆变器存在的不足,分析总结了阻抗型单相并网逆变器的特点,针对阻抗型单相并网逆变器进行建模,设计了系统的电压和电流信号采集通道,采用双环控制策略以及改进比例谐振控制方法,来稳定阻抗网络电容电压,获得具有零稳态误差的并网电流。经Matlab/Simulink仿真分析和样机实验,验证了所采用控制方法的正确性和实际应用效果。In light of the deficiencies of the traditional voltage source inverter, this paper analyzes the characteristics of the impedance type single-phase grid-connected inverter. Its mathematical model is established; the acquisition channels of the system voltage and current signals are designed ; the impedance network capacitor voltage is stabilized and the zero steady-state error grid current is obtained by using the double-loop control strategy and the improved proportional resonant control method. Finally, the Matlab / Simulink simulation and the prototype testing validated the correctness of the control theory and the effect of the practical application.

关 键 词：阻抗型逆变器 单相并网 双环控制 改进比例谐振控制 MATLAB SIMULINK 

分 类 号：TM464[电气工程—电器]