改进重复控制技术在光伏并网逆变器中的应用  

Application of Improved Repetitive Control Technique in Photovoltaic Grid-Connected Inverter

作　　者：冯涛[1] 卞建鹏[1] 高蒙[1] 

机构地区：[1]石家庄铁道大学电气工程学院,石家庄050043

出　　处：《电测与仪表》2014年第1期75-79,共5页Electrical Measurement & Instrumentation

基　　金：国家级青年科学基金资助项目(51307112)

摘　　要：基于LCL滤波器的并网VSI系统,在重复控制理论基础上进行改进,提出一种具有频率波动适应能力的控制策略,保证当电网频率波动时依然具有良好的电流跟踪性能。同时系统具有低谐波及高功率因数的优越性能。通过Matlab/Simulink仿真验证了该控制策略的正确性和有效性。LCL filter-based grid connected VSI will be improved on the basis of repetitive control A new control strate- gy with the capacity to adapt to the frequency fluctuation is presented in this paper, which will ensure a good current tracking performance in condition of grid frequency fluctuation. Moreover, the proposed system has the advantages in low harmonic and high power factor. Simulation results based on matlab/simulink verify the correctness and effective- ness of the proposed control strategy.

关 键 词：光伏电站 逆变器 重复控制 仿真 

分 类 号：TM571[电气工程—电器]