单位功率因数控制的直流调速电源研究

Research on Unit Power Factor Control of DC Speed Regulating Power

直流电源广泛应用在各个领域,传统的直流调速电源多采用不控整流或晶闸管相控整流,使得装置的功率因数低且对电网的谐波污染严重。对基于PWM控制技术的直流调速电源进行了研究,并基于MATLAB和PSIM搭建了系统仿真模型,仿真结果证明该方案实现了整流器的单位功率因数运行和输入电流的正弦化,大大减小了装置的谐波污染。

DC with thyristor, speed control power are usually no-controlled rectifier or phased controlled rectifier making the power factor of the device low and taking harmonic pollution to power network. The DC speed regulation power based on PWM control technology is researched and the simulation model is built based on MATLAB and PSIM in this paper. The simulation results shows that this scheme makes the rectifier working with unit power factor, and the input current sinusoidal. This scheme greatly reduce the harmonic pollution of the rectifier device.