基于滑模变结构的PWM整流器系统设计

Design of the PWM Rectifier System Based on Sliding Mode Variable Structure

根据三相电压型PWM整流器的主电路拓扑结构,建立了整流器的数学模型;对控制系统的电流内环采用滑模变结构的控制算法,对电压外环进行PI控制,并通过Matlab/Simulink进行了仿真。从仿真结果可以看出,滑模变结构PWM整流器系统具有较好的抗干扰能力。

The author of this paper has established the mathematical model of the three-phase voltage PWM rectifier according to the topology of its main circuit,applied sliding mode control algorithm to the inner current loop control system and simulated the PI control of the voltage loop through Matlab/Simulink.The simulation results show that PWM rectifier with sliding mode variable structure has a good anti-interference capability.