浅析谐波电流测试中产生的谐振现象

Analysis of the Resonance Phenomenon in Harmonic Current Test

通过对一款LED照明产品匹配不同试验电源进行谐波电流测试,分析了测试中产生的谐振现象,明确了部分LED照明产品在进行谐波电流测试时,可能由于所用电源内电感与被测产品内电容之间发生谐振而造成对被测产品作出误判。并给出判定谐波电流测试过程中是否产生谐振的方法,为广大检测人员提供参考。

The harmonic current test was carried out by matching the LED lighting products with different power supplies,so as to analyze the phenomenon of resonance. It is clear that some LED lighting products may be made wrong judgment due to the resonance between the inductor in the power supply and the capacitor in the LED lighting product under harmonic current test. This paper presents how to determine whether there is resonance during the harmonic current test, providing a reference for the test personnel.