额定功率小于25 W的LED灯具谐波含量探讨

陈钟毓（北京市建筑设计研究院有限公司，北京市 100045）

Discussion on Harmonic Content of LED Luminaire With the Rated Power of Less than 25 W

CHEN Zhongyu(Beijing Institute of Architectural Design（Group）Co.，Ltd.,Beijing 100045，China)

Abstract：This paper measures the harmonic content of 18 various types of LED luminaires,and determines the limit of total harmonic distortion (THD)according to the Electromagnetic Compatibility (EMC)— Part 3 - 2: Limits — Limits for Harmonic Current Emissions(Equipment Input Current ≤ 16 A per Phase(IEC 61000 - 3 - 2:2018). It also compares the harmonic content of various types of LED luminaires under the dimming state,and analyzes the measurement results.

Key words：LED luminaire; harmonic wave;total harmonic distortion(THD);power factor;full power factor;electrical parameters;comparative analysis;electrical energy saving

摘　要：对18款不同类型LED灯具的谐波含量进行测量，依据IEC 61000-3-2:2018《  Electromagnetic compatibility(EMC)— Part 3 - 2:Limits — Limits for harmonic current emissions (equipment input current ≤ 16 A per phase)》对灯具总谐波畸变率（THD）限值进行判定。同时对比不同类型LED灯具在调光状态下的谐波含量，并对测量结果进行分析。

关键词：LED灯具；谐波；总谐波畸变率（THD）；功率因数；全功率因数；电参数；对比分析；电气节能

中图分类号：TM923.34  　　      文献标识码：A

doi：10.3969 / j. issn.1003 － 8493.2022.02.009