Optimum coordination of directional overcurrent relays for combined overhead/cable distribution system with linear programming technique

被引：0
作者：
Sarang V. Khond
Gunwant A. Dhomane
机构：
[1] Government Engineering College,Department of Electrical Engineering
来源：
Protection and Control of Modern Power Systems | 2019年 / 4卷
关键词：
Dual simplex method; Linear programming; Optimization; Overcurrent relay coordination; Power distribution system;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Heavy fault currents flow in the event of fault at the loads connected in distribution system. To protect these loads, circuit breakers and relays are required at appropriate places with proper coordination between them. This research paper focuses on finding optimum relay setting required for minimum time to interrupt power supply to avoid miscoordination in operation of relays and also investigates effect on time multiplier settings (TMS) of directional overcurrent relays in a system with combined overhead lines-underground cables. Linear programming problem (LPP) approach is used for optimization. It is interesting to know the quantitative variations in TMS as the underground cables have different characteristics than overhead lines.
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