基于DSP单相半桥整流器的电压平衡补偿方法

Voltage balance compensation of single-phase rectifier based on DSP

应用TMS32 0F2 4 0设计了一套全数字基于单相半桥拓扑的单位功率因数整流器 .通过针对输出电容的电压差值的直流分量进行补偿 ,解决了电压平衡问题 .主要讨论了单位功率因数实现和电容电压平衡问题及其关系 .通过仿真和试验证实 ,在不影响输入功率因数的条件下 。

Based on single phase topology, a digital unity power factor rectifier by TMS320F240 was designed. The problem of voltage balance was solved by a compensation for the difference of the output voltage of capacitor. The relationship between the unity power factor and the voltage balance of the capacitor was discussed. By the simulation and experiments, it was confirmed that the voltage balance was gained on the condition that the power factor was not affected.