Optimum Coordination of Overcurrent Relay Timing Using Simplex Method
- 27 July 2010
- journal article
- research article
- Published by Taylor & Francis Ltd in Electric Power Components and Systems
- Vol. 38 (10), 1175-1193
- https://doi.org/10.1080/15325001003652900
Abstract
This article presents the simplex method for optimum time coordination of directional overcurrent relays. The main contribution of this article is the application of the simplex method in spite of the inherent unsuitability of the problem. This is achieved by applying the simplex algorithm to the dual of the problem. Furthermore, there are reductions in the number of calculations and memory requirement, as the artificial variables need not be introduced. A comparison with other variants of the simplex algorithm and the genetic algorithm is also presented. It has been shown that the proposed method is applicable for finding the optimum coordination, even when a variety of overcurrent relays is present in the system.Keywords
This publication has 14 references indexed in Scilit:
- Distribution Network Reconfiguration Considering Protection Coordination ConstraintsElectric Power Components and Systems, 2008
- A new comprehensive genetic algorithm method for optimal overcurrent relays coordinationElectric Power Systems Research, 2008
- A New Nonlinear Directional Overcurrent Relay Coordination Technique, and Banes and Boons of Near-End Faults Based ApproachIEEE Transactions on Power Delivery, 2006
- Pre-processing of the optimal coordination of overcurrent relaysElectric Power Systems Research, 2005
- A new optimal approach for coordination of overcurrent relays in interconnected power systemsIEEE Transactions on Power Delivery, 2003
- An adaptive protection scheme for optimal coordination of overcurrent relaysElectric Power Systems Research, 2001
- Overcurrent relay coordination by evolutionary programmingElectric Power Systems Research, 2000
- An on-line relay coordination algorithm for adaptive protection using linear programming techniqueIEEE Transactions on Power Delivery, 1996
- Coordination of directional overcurrent relay timing using linear programmingIEEE Transactions on Power Delivery, 1996
- Optimal coordination of directional overcurrent relays in interconnected power systemsIEEE Transactions on Power Delivery, 1988