LED照明应用中驱动电源对公共电网的影响及治理  

Effect of LED Power Supply on Public Power Grid and Its Control in LED Lighting Application

作　　者：公文礼 Gong Wenli(Shaanxi Xinwei Electronic Technology Co.Ltd.,Xi'an 710086,P.R.China)

机构地区：[1]陕西新威电子科技有限公司,西安710086

出　　处：《灯与照明》2021年第1期52-57,共6页Light & Lighting

摘　　要：近年来,大功率LED灯具已在家居照明、城市照明以及各种工业照明中得到了广泛应用。LED灯具节能、长寿等诸多优点让用户摆脱了过去使用白炽灯而频繁换灯的烦恼,LED灯具取代传统照明是科技发展的必然趋势。但在现有LED照明应用中,由于各个生产厂家对LED灯具自身设计和成本等外在因素的考虑,加之大多用户对LED灯具质量认识欠缺,目前市场上的LED灯具质量良莠不齐,未达标的低端LED灯具充斥市场,用户在购买时难以辨认。用户只关心灯具的光通量、功率等指标,LED灯具的色温、EMI、PFC等技术指标基本上无人过问,然而,这些指标却极其重要,这些指标如未达要求,除了造成LED灯具自身效率低、频闪、寿命短、色温漂移外,大量使用时将对公共电网产生谐波污染,造成电网无功损耗大等危害。从根本上解决LED驱动电源的谐波污染问题,对提高公共电网供电质量和用电效率,优化电网运行环境,从宏观上缓解能源短缺问题具有重要的现实意义。In recent years,high-power LED lamps have been widely used in home lighting,urban lighting and various industrial lighting.The popularity of LED lamps also makes users realize its energy saving,longevity and many other advantages,but also let users get rid of the past use of incandescent lamps and frequent change of lights,LED lamps to replace traditional lighting is the inevitable trend of scientific and technological development.The existing LED lighting applications,due to the impact of various manufacturers on the design and cost of LED lamps and other external factors,coupled with the lack of understanding of the quality of LED lamps,caused the current market quality of LED lamps mixed,substandard low-end LED lamps flooded the market because of low prices,users may only care about the luminous flux,power and other indicators,for LED lamps color temperature,no one and other depth of technical indicators are basically ignored.However,it is these seemingly insignificant indicators that cause a lot of trouble to power grid and users.In addition to the intuitive phenomena such as low efficiency,stroboscopic,short life and color temperature drift of LED lamps,especially the harmonic pollution of public power grid when used in large quantities.Therefore,it is significance to solve the harmonic pollution problem of LED driving power supply fundamentally,to improve the power supply quality and efficiency of public power grid,to optimize the operating environment of power grid,and to alleviate the shortage of energy in China macroscopically.

关 键 词：LED驱动电源 谐波污染 谐波治理 PFC校正 APFC技术 

分 类 号：TM923.34[电气工程—电力电子与电力传动]