一种UPS无互连线并联均流控制技术研究  

Research on Parallel Operation of UPS System by Wireless Load Sharing Control

作　　者：段善旭[1] 刘邦银[1] 林新春[1] 康勇[1] 

机构地区：[1]华中科技大学电气与电子工程学院,武汉430074

出　　处：《电源世界》2008年第10期46-49,共4页The World of Power Supply

摘　　要：本文介绍了一种基于频率和电压下垂均流控制的无互连线并联UPS系统。从理论上分析了输出功率与两台UPS之间的输出电压的相位差和幅值差的关系,给出了系统的数字控制方案,在采用TMS320F240控制的两台3kV·A的UPS上进行实验验证了理论分析的正确性。A load sharing control base on the frequency and voltage droop concept for parallel operation of two UPS system with no con- trol interconnection lines is presented in this paper.Firstly,due to the use of active power and reactive power as control variables,the characteristics of output powers according to amplitude and phase differences between output voltages of two UPS system are analyzed. Secondly,the digital control algorithm is presented.Finally,experiments are presented to verify the theoretical disc...

关 键 词：不间断电源 无互连线并联 均流 下垂特性 

分 类 号：TN86[电子电信—信息与通信工程]