摘要
分析了并联无功补偿电容器组关合时所产生的暂态过电压和涌流。讨论了在微机保护装置下投入三种不同连接方式并联电容器组的最佳时机。通过MATLAB仿真结果表明,在采用新的关合技术后,可以有效减小电容器组投入时的暂态过电压和涌流,提高电力系统的安全性。这种方式还有无需改变现微机保护装置、节约改造成本等优点。
The transient over-voltage and inrush current when energizing shunt capacitor banks are analyzed.The best time is discussed in shunt capacitor banks closing with three different connectors.MATLAB simulation results show that the new switch-closing technology can effectively reduce the transient over-voltage and inrush current in capacitor banks,and improve the security of the power system.In this way there are advantages in saving the cost of renovation.
出处
《科学技术与工程》
北大核心
2013年第3期606-610,共5页
Science Technology and Engineering
关键词
电容器组关合
微机保护
过电压
涌流
capacitor switching microcomputer protection over-voltage inrush current
