基于LCL滤波的三相电压型PWM整流器控制策略研究

A Study on the Control Strategy for the Three-Phase Voltage-Type PWM Rectifier Based on the LCL Filtering

建立了三相电压型PWM整流器的数学模型,分析设计了LCL滤波器参数;其次引入基于虚拟电阻的电压电流双闭环控制策略,提高系统的电流快速响应特性和电压鲁棒性;最后在MATLAB/Simulink环境下搭建仿真模型,验证本设计的正确性与可行性。

This paper introduces the mathematical modeling of the three-phase voltage-type PWM rectifier and analyzes the design of the parameters of the LCL filter. The application of the voltage-current double closed-up control strategy based on the virtual resistance can enhance the quick response of the current and the voltage robustness of the system. The simulation model with the help of the MATLAB/Simulink verifies the validity and feasibility of the design.