基于磁控开关的高压无功补偿新方法
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering(2013)
Abstract
目前,在10~35 kV电压等级下对光伏发电、风力发电等无功需求变化范围大的负荷尚未有满意的动态无功补偿方案。当前常见的解决方案是高压晶闸管串联投切电容(thyristor switched capacitors,TSC)、晶闸管相控电抗(thyristor controlled reactor,TCR)、磁阀式可调电抗(magnetic-valve controllable reactor,MCR)以及静止同步补偿器(static synchronous compensator,STATCOM)。高压TSC和TCR需要大量晶闸管串联,成本高、可靠性差;MCR在轻载时有功损耗及谐波非常严重;STATCOM在高压场合下需要多组级联,可靠性较差,成本高。该文提出一种新方法,将双向晶闸管并联于变压器副边作投切元件,使变压器在励磁电抗和短路电抗之间转换,相当于无触点的"磁控开关",从而实现对补偿电容器的投切。理论分析、仿真和实验均证实该方案具有暂态涌流小、响应速度快、损耗低、可靠性高的优点。
MoreTranslated text
Key words
Dynamic,High-voltage,Magnetic controlled switcher,Reactive power compensation,Zero-cross switching
AI Read Science
Must-Reading Tree
Example
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined