刘俊,胡国珍.基于状态积分反馈的大功率逆变器 复合重复控制策略[J].电测与仪表,2019,56(2):110-115,133. LIU JUN,HU GUOZHENG.Compound Repetitive Control Method for Large Power Inverter based on Integral State Feedback[J].Electrical Measurement & Instrumentation,2019,56(2):110-115,133.
基于状态积分反馈的大功率逆变器 复合重复控制策略
Compound Repetitive Control Method for Large Power Inverter based on Integral State Feedback
This paper proposes a compound repetitive control method for large power inverter based on integral state feedback. The dynamic performance of the inverter is improved by utilizing the integral state feedback method while the output voltage quality is optimized by using the repetitive control method. Then the control problems of the large power inverter caused by low switching frequency are solved achieving high dynamic performance and voltage quality under complex stand-alone operation conditions. Firstly, the discrete model of the large power inverter is built. Based on this model, the control parameters of integral state feedback and repetitive controllers are optimized designed. Then the simulation model of the inverter is built and the output voltage waveforms under conditions of step up/down loads, nonlinear loads and unbalanced loads are achieved. The simulation results indicate the effectiveness and feasibility of the proposed control method.
