黄锦,曹以龙,赵转.三相PWM整流器新型复合控制策略的性能研究[J].电测与仪表,2016,53(3):. HUANG Jin,CAO Yi-long,ZHAO Zhuan.Study on the Performance of Novel Compound Control Strategy of Three-phase PWM Rectifier[J].Electrical Measurement & Instrumentation,2016,53(3):.
三相PWM整流器新型复合控制策略的性能研究
Study on the Performance of Novel Compound Control Strategy of Three-phase PWM Rectifier
Since three-phase voltage source PWM rectifier (VSR) using conventional PI control strategy is difficult to obtain good regulation results in the case of large disturbances and changes of the control object, based on the traditional double closed loop control strategy, this paper makes the combination with PI control and fuzzy control, applied to the outer voltage control, and takes load current as feed-forward compensation, the inner current control loop uses quasi-PR (proportional resonance) control strategy. Thus, a new type of double-loop complex control method is proposed. The control system is simulated by MATLAB/Simulink,the results show that the system not only has excellent dynamic and steady state performance, but also has a strong robustness to the external disturbance,which verifies the feasibility of the scheme.