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Enhanced Discrete Differential Evolution to Determine Optimal Coordination of Directional Overcurrent Relays in a Power System

  • Joymala Moirangthem
  • Subranshu Sekhar Dash
  • K. R. Krishnanand
  • Bijaya Ketan Panigrahi
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7076)

Abstract

This paper presents an enhanced differential evolution technique to solve the optimal coordination of directional overcurrent relays in a power system. The most vital task when installing directional relays on the system is selecting suitable current and time settings such that their fundamental protective functions are met under the requirements of sensitivity, selectivity, reliability and speed. Coordination of directional over current relays can be formulated as a linear or non-linear problem taking into account the discrete value for the time dial settings and the pickup current settings. The results are compared with different algorithms on a test system and are presented in this paper.

Keywords

Directional overcurrent relays (DOCRs) Enhanced Discrete Differential Evolution Algorithm (EDDEA) Relay coordination Pickup current settings (Ip) Time dial settings (TDS) 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Joymala Moirangthem
    • 1
  • Subranshu Sekhar Dash
    • 1
  • K. R. Krishnanand
    • 2
  • Bijaya Ketan Panigrahi
    • 3
  1. 1.Department of Electrical and Electronics EngineeringSRM UniversityIndia
  2. 2.Multi-Disciplinary Research CellSiksha O’ Anusandhan UniversityBhubaneswarIndia
  3. 3.Department of Electrical EngineeringIndian Institute of TechnologyDelhiIndia

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