司莎莎.在线式大功率UPS中高频整流器充电控制策略研究[J].电测与仪表,2014,51(14):. sishasha.Design of Intelligent Batteries Charge System Used for Mining UPS[J].Electrical Measurement & Instrumentation,2014,51(14):.
在线式大功率UPS中高频整流器充电控制策略研究
Design of Intelligent Batteries Charge System Used for Mining UPS
The deficiencies to traditional un-interruptible power supply charging was described. Instead of the rectification and charging as well as PFC three circuit modules in traditional ups,the PWM rectifier was used and by controlling it we achieved three-stage charging.Meanwhile,in order to realize smooth switching in each charging stage,the current closed-loop sliding-mode control strategy based on synchronous rotating coordinate was adopted.simulation result shows that this control strategy is of better DC charging voltage tracking capability with smooth response and strong robustness.