2010 International Conference on Intelligent Computation Technology and Automation Modeling and Simulation of the Hysteretic Current PWM Rectifier Based on Switching Frequency Closed-loop

摘要

Based on the traditional hysteretic current control, this paper presents a control approach using switching frequency closed-loop. A switching frequency feedback link is introduced to control the switching frequency dynamically. It solves the problem of the volatile switching frequency in hysteretic current control, as well as the slow current response of the fixed switching frequency current control. Meanwhile, it builds the three loops control of the rectifier simulation in MATLAB. The result shows the correctness of the principle analysis.