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240V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。
Existing LED streetlights use single lamp dispersion DC power supply mode. This article proposes a kind of centralized DC distribution scheme for city LED streetlights. The streetlight transformer is designed for 240V DC supply station; through the DC distribution line it will delivery direct current to LED street luminaires. The high voltage rectifier bridge, high pressure filtering electrolytic capacitor and PFC inductor in the existing LED drive power are canceled to solve the LED streetlight life problems. The DC distribution pattern could be used to achieve the energy saving, power factor improving and harmonic reducing purpose.
出处
《中国照明电器》
2013年第4期26-28,共3页
China Light & Lighting
关键词
LED路灯
驱动电源
集中直流供电
LED streetlight
drive power
centralized DC power supply
