摘要
分析了在超高压输电线路中分布电容电流对差动保护的影响,并基于ATP仿真,通过数字滤波[1,2]对线路电容电流进行补偿,补偿后的结果表明,该方法简单适用,不仅增加了区内故障的灵敏度,也提高了其速动性。
The influence of capacitance current on current differential protection in various faulted of long UHV transmission line is analyzed, and digital filter method to compensate the capacitance current based on ATP model is used. The result shows that differential current protection is applicable for UHV transmission line , and capacitance current compensation can improve the speed and sensitivity of differential protection.
出处
《电气应用》
北大核心
2007年第1期49-52,共4页
Electrotechnical Application
关键词
分布电容电流
数字滤波
补偿
差动保护
differential capacitance current digital filter compensation differential protection
