摘要
叙述了这种UPS的工作原理与控制方式,提出的控制方式可以实现串并联补偿式UPS全部控制功能,在电源电压不是额定值且含有谐波电压、负载含有谐波电流和无功电流的情况下,电源输入电流被控制成正弦,功率因数等于1,负载电压被控制成额定值正弦波电压,并且具有不对称电流补偿功能。
The operating principle and control method of the three-phase UPS are described. The proposed control strategies can make the UPS realize all of the control goals i.e. sinusoidal input current with cosФ = 1 and sinusoidal output voltage with normal value in the case of non-sinusoidal, non-normal supply voltage and non-lineal load with reactive power, and have function of unsymmetrical current compensation.
出处
《电源技术应用》
2005年第9期1-10,共10页
Power Supply Technologles and Applications
关键词
三相
串并联
补偿
UPS
three-phase
serles-parallel
compensation
UPS
