广域保护中基于能量守恒原理的母线及输电线差动保护(英文)

被引:11
作者
Farhad NAMDARI
Sadegh JAMALI
Peter A CROSSLEY
机构
[1] Centre of Excellence for Power Systems Automation and Operation Department of Electrical Engineering
[2] Iran University of Science and Technology Tehran
[3] - Iran
[4] Centre of Excellence for Power Systems Automation and Operation Department of Electrical Engineering
[5] University of Manchester Manchester
[6] M QD UK
关键词
线路保护; 母线保护; 功率差动保护; 广域保护;
D O I
暂无
中图分类号
TM771 [保护原理];
学科分类号
080802 ;
摘要
提出一种基于能量守恒原理的纵联差动保护,对线路两端或母线各端的有功功率进行比较,若各端功率的和超出整定值,则判定为区内故障。在典型400 kV输电系统模型上,运用MATLAB仿真软件对所提出的原理进行了仿真验证。仿真结果表明,该方法比传统电流比率差动保护更加可靠且计算量小,因而可缩短动作时间。该方法能检测所有故障类型,适应于超高压远距离输电线路。
引用
收藏
页码:35 / 40
页数:6
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