NDLI: Adaptive modified firefly algorithm for optimal coordination of overcurrent relays

Content Provider	IET Digital Library
Author	Tjahjono, Anang Anggriawan, Dimas O. Faizin, Alfa K. Priyadi, Ardyono Pujiantara, Margo Taufik, Taufik Purnomo, Mauridhi Hery
Abstract	One major concern in using over current relays (OCRs) is their coordination in power system protection to decrease the pressure of electrical equipment and avoid mal-trip in the primary and backup relays. The issue has recently become more challenging with the increasing use of distributed generation (DG). This study proposes the use of firefly algorithm (FA) to achieve an optimised coordination of OCRs in power system protection when DG is present in the system. Typically, the FA is done by selecting plug setting and time setting multiplier parameters. However, the algorithm associated with such method requires a long convergence time and has the risk of getting trapped in local optima. Therefore, an adaptive modified FA (AMFA) has been developed to overcome these issues and obtain the optimised coordination of OCRs. The AMFA is tested in five case studies of a power system with DG whose results are then compared with those obtained from the conventional and FA methods. The results demonstrate that the proposed AMFA is able to achieve the optimised coordination of OCRs in all test cases with significant improvement in time reduction reaching 40.446%.
Starting Page	2575
Ending Page	2585
Page Count	11
ISSN	17518687
Volume Number	11
e-ISSN	17518695
Issue Number	Issue 10, Jul (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/11/10
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2016.1563
Journal	IET Generation, Transmission & Distribution
Publisher Date	2017-04-26
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Adaptive Modified Firefly Algorithm AMFA Backup Relays Convergence Time Distributed Generation Distributed Power Generation Electrical Equipment Pressure Local Optima OCRs Optimisation Optimisation Technique Overcurrent Protection Overcurrent Relay Optimal Coordination Power Generation Protection Power System Protection Relay Protection Time Setting Multiplier Parameter
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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