三相电压型PWM整流器的新型双闭环控制方法

研究了三相电压型PWM整流器的基于内模控制的新型双闭环控制策略。其中电流环基于内模解耦控制,实现了有功和无功电流的解耦,电压环基于功率守恒和二自由度内模抗扰控制,既实现了线性化的间接电压控制,又可实现直流侧电压的快速跟踪和优良抗扰特性。仿真结果验证了所提方法的可行性和有效性。

A Noveldouble Closed Loop Control Strategy of Three-phase Voltage-sourced PWM Rectifier

A new double closed loop control strategy of three-phase voltage-sourced PWM rectifier based on IMC,which is composed of inner current loop and outer voltage loop.Based on a decoupling control with IMC,the inner current loop can obtain the decoupling of active current and reactive current.Based on the idea of power conservation and disturbance-rejection control with two-degrees-of-freedom IMC,the outer voltage loop can not only realize the linearization control of voltage loop,but also,simultaneously,achieve characteristics of fast-tracking and excellent disturbance-rejection of the DC voltage.The simulation results demonstrate the validity and the feasibility of the proposed new control strategy.