摘要
UPS的并联冗余运行不仅可提高电源系统的容量,还可提高系统的可靠性。提出了一种基于分散逻辑的UPS逆变电源并联控制方案,并详细分析了电压型逆变电源并联运行控制过程中的电压和电流特性。试验结果表明,各模块均流效果好,控制策略可行。
This paper presents a novel control technique based on distributed-logic-control for the parallel operation of inverters in UPS. The voltage and current characters of voltage source inverters in parallel are also analyzed in detail,as well as the principle of parallel redundant system which can flexibly implement expansion of power system capacities and improve the operation reliability of whole power system.The experimental results of four 3 kVA UPSs based on DSP show that the control strategy is feasible and verified the validity of load-sharing of inverter modules.
出处
《电力电子技术》
CSCD
北大核心
2004年第2期56-58,共3页
Power Electronics
基金
国家自然科学基金项目(50007004)
关键词
逆变器
均流/分散逻辑控制
并联冗余
inverter
load sharing/distributed-logic-control
parallel redundant
