摘要
针对现有LED路灯沿用的单灯分散直流供电模式,提出一种城市LED路灯集中直流配电方案,将路灯变压器设计为240 V直流供电站,通过直流配电线路将直流电输送到LED路灯灯具。取消现有LED灯具驱动电源中影响寿命的高压整流桥、高压滤波电解电容器、PFC电感等回路,该方法可以有效解决LED路灯的寿命问题。通过采用直流配电模式,同时达到节能、提高功率因数、减少谐波的目的。
This paper existing LED street lamp used single lamp dispersion dc power supply mode, the paper proposes a kind of city LED street lamp centralized dc distribution scheme. The street lamp transformer de- sign for 240 V dc supply station, through the dc distribution line will direct current delivery to the LED street light lamps and lanterns. Cancel the existing LED lamps and lanterns drive power of influence life of high voltage rectifier bridge, high pressure filtering electrolytic capacitor, PFC inductance and loop, this method can effectively solve the LED street lamp life problems. Through the use of dc distribution pattern, at the same time to achieve energy saving, improve power factor, reduce harmonic purpose.
出处
《灯与照明》
2012年第4期52-55,共4页
Light & Lighting
关键词
LED路灯
驱动电源
集中直流供电
LED street lamp
drive power
concentrated dc power supply
