摘要
LED显示屏已广泛应用于各个领域,供电安全在一些机场、车站、体育场馆等重要场所显得尤为重要。分布式的开关电源在显示屏供电中被广泛应用,但其产生的谐波分量对电网的污染,以及对其它电气设备的影响也是日趋严重。所以抑制谐波在显示屏配电系统中应引起足够的重视。
LED display has been widely used in various fields, supply security in some airports, stations, stadiums and other important places is very important. Distributed switching power supply is widely used in the display, but the pollution it was generated by the harmonics to grid, and the impact on other electrical equipment to also become increasingly serious. So harmonic suppression in the display and distribution systems should be taken seriously enough.
出处
《电子科学技术》
2014年第3期332-336,共5页
Electronic Science & Technology
关键词
开关电源
谐波抑制
有源滤波
零序滤波
Switching Power Supply
Harmonic Suppression
Active filtering
Zero sequence filtering