LED灯具变位系数的测量与分析  

Measurement and Analysis of Displacement Factor of LED Luminaires

作　　者：白云高 

机构地区：[1]陕西省产品质量监督检验研究院,西安710048

出　　处：《日用电器》2025年第2期82-85,共4页ELECTRICAL APPLIANCES

摘　　要：功率因数是LED灯具的重要参数之一,但随着IEC在LED模块和LED灯具标准中用变位系数取代功率因数,国内相应的LED产品标准也开始用变位系数取代功率因数。本文根据标准中的定义及要求,用已有检测设备对LED灯具的变位系数进行测量和计算,来阐述变位系数的规律和物理意义。Power factor is one of the important parameters of LED luminaires,but with the IEC replacing the power factor with the displacement factor in the LED module and LED luminaires product standards,the corresponding domestic LED product standards have also begun to replace the power factor with the displacement factor.According to the definition and requirements in the standard,this paper measures and calculates the displacement factor of LED luminaires,and explains the law,physical significance of the displacement factor and the difference between the power factor and the displacement factor.

关 键 词：LED灯具 变位系数 位移因数 功率因数 失真系数 总谐波畸变率 

分 类 号：TM9[电气工程—电力电子与电力传动]