谐波电流对功率因数的影响

当前,电网存在大量的非线性设备和非线性负荷,其产生的谐波电流注入电网会造成污染,同时也会对功率因数产生影响,致使功率因数表读数与实际的功率因数值不一致。文中用理论结合实际的方式对谐波电流影响功率因数的情况进行了分析。分析表明:要减少谐波电流对功率因数的影响,就要从管理和技术上同时采取措施,方能收到好的效果。

Influence of Harmonic Current on Power Factor

Now, there are plenty of nonlinear equipment and nonlinear load in power grid, which produces harmonic current into power grid and causes pollution, at the same time also causes the difference between actual power factor value and reading of power factor meter. The paper analyzed the condition of influence of harmonic current on power factor using theoretical way combined with reality. The analysis shows that to reduce the influence of harmonic current on power factor to have good effect should adopt measures from management and technology at the same time.