Differential search algorithm in multi machine power system stabilizers for damping oscillations

Naz Niamul Islam, M. A. Hannan, Zah Mohamed, Hussain Shareef

Research output: Contribution to journalArticle

Abstract

© 2005-2016 JATIT & LLS. All rights reserved. Power system oscillations, a major problem in power system, is suppressed employing power system stabilizers (PSSs). Proper optimization of PSSs is a complex design problem. In this paper, a bio-inspired metaheuristic optimization technique named as differential search algorithm (DSA) is presented to solve the optimization problem of multi machine PSSs. The optimization of PSSs is converted as a cost function then DSA is applied to tune the optimal parameters for PSSs by minimizing the cost function. PSSs are optimized in order to achieve adequate damping for local and inter-area modes of growing oscillations in a multi machine power system. Simulations are conducted in linear and non-linear models of power system to verify the robustness of proposed algorithm. A comprehensive investigation is conducted to compare the performance of DSA based PSSs with the tuned PSSs using bacterial foraging optimization algorithm (BFOA) and particle swarm optimization (PSO) in terms of convergence, improvements of electromechanical modes and system damping over oscillations. The obtained results show that the presented DSA technique is efficient for PSS optimization for the safety of multi machine power system.
Original languageEnglish
Pages (from-to)353-359
Number of pages317
JournalJournal of Theoretical and Applied Information Technology
Publication statusPublished - 30 Nov 2016

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Power System Stabilizer
Search Algorithm
Damping
Oscillation
Power System
Cost functions
Cost Function
Optimization
Particle swarm optimization (PSO)
Foraging
Optimal Parameter
Metaheuristics
Optimization Techniques
Particle Swarm Optimization
Nonlinear Model
Optimization Algorithm
Safety
Verify
Robustness
Optimization Problem

Cite this

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Differential search algorithm in multi machine power system stabilizers for damping oscillations. / Islam, Naz Niamul; Hannan, M. A.; Mohamed, Zah; Shareef, Hussain.

In: Journal of Theoretical and Applied Information Technology, 30.11.2016, p. 353-359.

Research output: Contribution to journalArticle

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