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.
出处
《华东电力》
北大核心
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)~~
