摘要
220kV输电线路作为地区电网主要输电线路,发生故障时产生电压暂降凹陷域大,影响范围广。通过对220kV输电线路的保护配备,继电保护动作情况,故障情况的统计分析,用relayCAC软件对故障仿真计算,通过仿真得出的结果与故障录波装置电气信息数据进行验证,找出220kV输电线路时产生电压暂降的特性,提出从电网运行侧消除电压暂降的难点。调查电压暂降对地区电网中的敏感负荷的受影响程度,提出从负荷侧降低电压暂降影响的措施。
220kV transmission line aa a major regional grid transmission fine, failure will produce voltage sag, whose domain and effect are wide. Through statistical analysis of protection equipment, relay protection action and failure status of 220 kV transmission line, finding out the characteristics of voltage sag, using relayCAC software for fault simulation , the simulation results and the fault wave recording device of electrical information data find out the difficulties to eliminate voltage sag from Grid side. Also investigating the effect of voltage Sag to sensitive load of regional grid, find out the action for reducing the effect of voltage sag from load side.
出处
《电气自动化》
2012年第4期53-55,64,共4页
Electrical Automation
