基于串联非线性电阻组合开关的补偿电容器组投切重燃过电压研究  

Research on Switching Reignition Over-voltage of Compensation Capacitor Bank Based on Series Nonlinear Resistor Combination Switch

作　　者：刘斌 岳永刚 张庆如 王雪松 吕鑫 杨兰均[2] 黄易之 王超[2] LIU Bin;YUE Yonggang;ZHANG Qingru;WANG Xuesong;LYU Xin;YANG Lanjun;HUANG Yizhi;WANG Chao(Inner Mongolia EHV Power Supply Company,Hohhot 010080,China;School of Electrical Engineering,Xi’an Jiaotong University,Xi’an 710049,China)

机构地区：[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

出　　处：《高压电器》2024年第8期183-192,共10页High Voltage Apparatus

基　　金：内蒙古电力(集团)有限责任公司科技项目(无功补偿装置故障自动预警系统研究)。

摘　　要：文中旨在研究电力系统中切除并联无功补偿电容器组时出现的过电压问题。通过ATP-EMTP软件,搭建了投切电容器组模型,仿真了普通开关和串联电阻开关在多种工况下的过电压水平。为解决串联电阻开关在限制两次两相重燃时效果不佳的困扰,提出了采用串联非线性电阻组合开关的解决方案,并对比了3种方案在限制过电压方面的效果。仿真结果表明,串联非线性电阻组合开关在两次两相重燃工况下表现出卓越的限制效果,能够有效地抑制过电压并保护电容器组绝缘。该组合开关可以作为电力系统中并联电容器组无功补偿系统设计的参考。This paper aims to study the over-voltage in case of switching the parallel reactive power compensation capacitor banks in the power system.The switching capacitor bank model is set up through ATP-EMTP software and the over-voltage level of both general switch and series resistor switch is simulated under various conditions.For solving the problem of the ineffectiveness of series resistor switch in limiting two-phase reignition at two times,a solution using a series non-linear resistor combination switch is proposed,and the effects of the three schemes in limiting the over-voltage are compared.The simulation results show that the series nonlinear resistor combination switch shows excellent limiting effect under two-phase reignition conditions at two times,can effectively suppress the over-voltage and protect insulation of the capacitor bank.The combination switch can be used as a reference for the design of reactive power compensation system for shunt capacitor bank in power system.

关 键 词：并联电容器组 ATP-EMTP 重燃过电压 串联电阻开关 

分 类 号：TM53[电气工程—电器]