Grey Wolf Optimization-Based Optimum Energy-Management and Battery-Sizing Method for Grid-Connected Microgrids

Kutaiba Sabah Nimma, Monaaf D. A. Al-Falahi, Hung Duc Nguyen, S. D. G. Jayasinghe, Thair S. Mahmoud and Michael Negnevitsky
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Kutaiba Sabah Nimma: Australian Maritime College, University of Tasmania, Newnham, TAS 7248, Australia
Monaaf D. A. Al-Falahi: Australian Maritime College, University of Tasmania, Newnham, TAS 7248, Australia
Hung Duc Nguyen: Australian Maritime College, University of Tasmania, Newnham, TAS 7248, Australia
S. D. G. Jayasinghe: Australian Maritime College, University of Tasmania, Newnham, TAS 7248, Australia
Thair S. Mahmoud: School of Engineering, Edith Cowan University, Joondalup, WA 6027, Australia
Michael Negnevitsky: Center for Renewable Energy and Power System School of Engineering, University of Tasmania, Hobart, TAS 7005, Australia

Energies, 2018, vol. 11, issue 4, 1-27

Abstract: In the revolution of green energy development, microgrids with renewable energy sources such as solar, wind and fuel cells are becoming a popular and effective way of controlling and managing these sources. On the other hand, owing to the intermittency and wide range of dynamic responses of renewable energy sources, battery energy-storage systems have become an integral feature of microgrids. Intelligent energy management and battery sizing are essential requirements in the microgrids to ensure the optimal use of the renewable sources and reduce conventional fuel utilization in such complex systems. This paper presents a novel approach to meet these requirements by using the grey wolf optimization (GWO) technique. The proposed algorithm is implemented for different scenarios, and the numerical simulation results are compared with other optimization methods including the genetic algorithm (GA), particle swarm optimization (PSO), the Bat algorithm (BA), and the improved bat algorithm (IBA). The proposed method (GWO) shows outstanding results and superior performance compared with other algorithms in terms of solution quality and computational efficiency. The numerical results show that the GWO with a smart utilization of battery energy storage (BES) helped to minimize the operational costs of microgrid by 33.185% in comparison with GA, PSO, BA and IBA.

Keywords: battery energy storage sizing; optimization; energy management systems; economic load dispatch; grey wolf optimization (GWO); microgrid (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (12)

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