Modified Swarm Firefly Algorithm for Optimal Settings of Directional Overcurrent Relays

Abstract:

This paper presents a new approach known as Modified Swarm Firefly Algorithm (MSFA) technique in solving Directional Overcurrent Relays (DOCRs) coordination problem by minimizing the operating time of primary relays at near-end fault. DOCRs coordination requires the optimal values of Time Multiplier Setting (TMS) whereas the pickup current (I_p) values are based on load and data fault. The proposed technique is tested on IEEE 14-bus system and is compared with Particle Swarm Optimization (PSO). The simulation results revealed that the MSFA technique outperformed PSO in terms of minimizing fitness values.

• Periodical: Applied Mechanics and Materials (Volume 793)
• Pages: 473-477
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.793.473
• Online since: September 2015
• Authors: Muhamad Hatta Hussain*, Ismail Musirin, Ahmad Farid Abidin, S.R.A. Rahim
• Keywords: Directional Overcurrent Relay, Protection System, Relay Operating Time, Time Multiplier Setting

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