Enhanced fractional chaotic whale optimization algorithm for parameter identification of isolated wind-diesel power systems

Yashar Mousavi , Ibrahim Beklan Kucukdemiral, Alireza Alfi

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Abstract

Parameters identification of isolated wind-diesel power systems (WDPS) is a significant issue in stability analysis of the power system as well as guaranteeing the power generation through the control system. In this article, enhanced whale optimization algorithms (EWOA) are proposed to deal with the parameter identification problem of a WDPS system. The proposed EWOA effectively tackles the premature convergence problem of WOA by splitting the population into two subpopulations and updating the position of each whale according to the position of the best agent in its current subpopulation, the position of the other subpopulation's best agent, and the position of the best neighboring agent. Furthermore, fractional chaotic maps are embedded in the search process of EWOA to increase its performance in terms of accuracy. For validation purposes, the proposed algorithms are applied to identify the unknown parameters of WDPS, where different statistical analyzes and comparisons are carried out with other recent state-of-the-art algorithms. Simulation results confirm that the algorithms have less deviation in parameter estimation, more convergence speed, and higher precision in comparison with other algorithms.
Original languageEnglish
Pages (from-to)140862-140875
Number of pages14
JournalIEEE Access
Volume8
DOIs
Publication statusPublished - 29 Jul 2020

Keywords

  • optimization
  • parameter identification
  • whale optimization algorithm
  • wind-diesel power system

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