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

作　　者：黄锦[1] 曹以龙[1] 赵转[1] 

机构地区：[1]上海电力学院电子与信息工程学院,上海200090

出　　处：《电测与仪表》2016年第3期75-79,92,共6页Electrical Measurement & Instrumentation

基　　金：上海市科技创新行动计划地方院校能力建设项目(13160500900)

摘　　要：由于三相电压型PWM整流器(VSR)采用传统PI控制策略难以在较大扰动和控制对象变化的情况下获得良好的调节效果,论文在传统的双闭环控制策略的基础上,提出了一种新型双闭环复合控制方法,即将PI控制与模糊控制相结合应用于电压外环控制,并将负载电流作为其前馈补偿,电流内环采用准PR(比例谐振)的控制策略。通过MATLAB/Simulink仿真,结果表明了系统不仅有优良的动稳态性能,而且对外界扰动具有很强的鲁棒性,从而验证了该种控制方案的可行性。Since the three-phase voltage source PWM rectifier（ VSR） using conventional PI control strategy is difficult to obtain good regulation results in the case of large disturbance 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,which is applied to the outer loop control of voltage,and takes load current as feed-forward compensation,and the inner current control loop uses quasi-PR（ proportional resonance） control strategy. Thus,a new type of double-loop compound control method is proposed. The control system is simulated by MATLAB / Simulink,and 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 control scheme.

关 键 词：PWM整流器 PI控制策略 模糊控制 前馈补偿 准PR控制 

分 类 号：TM93[电气工程—电力电子与电力传动]