李英姿　岳云涛　朱立阳（北京建筑工程学院，北京市 100044）

Study on Energy-saving of Incandescent Lamp Dimming

Li Binghua（China Construction Design International，Beijing 100013，China）

Li Yingzi　Yue Yuntao　Zhu Liyang（Beijing University of Civil Enginering and Architecture，

Beijing 100044，China）

 

Abstract Incandescent lamp features a good dimming characteristic，which often adopts SCR technology，that is，by adjusting the voltage to achieve the purpose of dimming. Experimental results show that while incandescent dimming saves energy，it tends to cause voltage waveform distortion，producing a large number of harmonics，harmonic consumes a lot of energy. The dimming process is also accompanied by the lowering of power factor，which reduces the active power. To find out the balance point P between the dimming energy-saving and harmonic energy consumption by studying the energy consumption features of the dimming process of incandescent lamp is of great significance on the incandescent lamp energy saving operation.

Key words　Incandescent lamp　Dimming　Harmonic　Power factor　Energy-saving balance point

 

摘　要　白炽灯具有良好的调光特性，通常白炽灯调光采用可控硅技术，即通过调节电压来达到调光的目的。实验证明，白炽灯调光节能的同时，易造成电压波形的畸变，产生大量的谐波，谐波消耗了不少的电能。同时调光的过程伴随着功率因数的降低，减少了有功功率。通过研究白炽灯调光过程的能耗特性，寻找调光节能与谐波耗能的平衡点 —— P 点，对白炽灯节能运行有着重要意义。

关键词　白炽灯　调光　谐波　功率因数　节能平衡点