基于串联电阻开关的电容器组投切重燃过电压仿真研究
Research on Simulation of Switching Re-ignition Over-voltage of Capacitor Bank Based on Series Resistance Switch
王雪松 1岳永刚 1吕鑫 1张庆如 2王超 2张立国 1杨兰均2
作者信息
- 1. 内蒙古超高压供电公司,呼和浩特 010080
- 2. 西安交通大学电气工程学院,西安 710049
- 折叠
摘要
研究了在500 kV超高压变电站的电容器组补偿系统中,通过采用串联电阻开关来限制并联电容器组投切过程中的过电压和涌流问题.通过仿真分析了不同串联电阻阻值的影响,并提出推荐阻值,对比了使用普通断路器、相控断路器和串联电阻开关对过电压与过电流的限制效果.结果表明,串联电阻开关能有效降低重燃概率,同时可降低重燃后的过电压水平.从经济和技术角度分析,认为串联电阻开关具有较低的断路器要求、更好的经济性和实用性.
Abstract
In this paper,the issue of limiting the over-voltage and inrush current by way of series resistance switch during the switching of shunt capacitor bank in the capacitor bank compensation system of a 500kV EHV substation is studied.The influence of different series resistance values is analyzed through simulation,the recommended resistance values are proposed,and the limiting effects of using ordinary circuit breaker,phase-controlled circuit breaker and series resistance switch on over-voltage and over-current are compared.The results show that the series resistance switch can effectively reduce the probability of reignition and can,at the same time,reduce the over-voltage level after reignition.It is thought from the the economic and technical perspective that the series resistance switch has lower circuit breaker specifications,better economic performance and practicality.
关键词
并联电容器组/ATP-EMTP/重燃过电压/相控断路器/串联电阻开关Key words
shunt capacitor bank/ATP-EMTP/re-ignition over-voltage/phase-controlled circuit breaker/series resistance switch引用本文复制引用
基金项目
内蒙古超高压供电公司科技项目(LX99222990)
出版年
2024
NETL
NSTL
万方数据