基于Matlab的高频开关电源功率因数测量电路研究

Research on the Circuits of Power Factor Measurement of Switch Power Supply in Matlab

文中提出了两种功率因数仿真测量模型,并在RC正弦电路中进行了仿真验证。结果表明,两种仿真测量模型得到的功率因数仿真数值与理论计算值一致。然后用这两种仿真测量电路对42kJ/s数字式高频高压恒流充电电源进行了仿真测量,其测得的功率因数结果与实验测得的结果一致,从而进一步验证了这两种功率因数仿真测量模型的可靠性。

IIn this paper, two simulation models of power factor measurement are proposed, and verified in sine RC circuit. Simulation results show that the values measured by the two models are in conformity with the theoretical ones. Then these two measurements models are connected with a three-phase high power supply circuit for a further simulation. Also, the obtained power factor is consistent with the experiment result, which further validates the reliability of the two simulation models of power factor measurement.