摘要
文章介绍了三相双变流器串-并联补偿式UPS的工作原理,详细讨论了其基于同步旋转坐标系下的控制系统方案。仿真结果表明,该控制系统可以实现双变流器串-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、负载有谐波电流和无功电流的情况下,电网输入电流被控制为正弦波、cosφ=1,负载电压被控制为额定值正弦波。
The paper introduces the operation principle and describes the control system scheme using Synchronous Reference Frame(SRF) of a three-phase series-parallel compensated line-interactive UPS system in detail. Simulation results verify this control system can make this kind of UPS carry out all of the control goals: sinusoidal input current with cosφ= 1 and sinusoidal output voltage with normal value in the case of non-sinusoidal, non-normal supply voltage and non-linear load with reactive power.
出处
《电气传动》
北大核心
2003年第6期35-38,共4页
Electric Drive
基金
台达科教发展基金
