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Grey wolf optimization-based optimum energy-management and battery-sizing method for grid-connected microgrids


Nimma, KS and Al-Falahi, MDA and Nguyen, HD and Jayasinghe, SDG and Mahmoud, TS and Negnevitsky, M, Grey wolf optimization-based optimum energy-management and battery-sizing method for grid-connected microgrids, Energies, 11, (4) Article 847. ISSN 1996-1073 (2018) [Refereed Article]


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Copyright 2018 the authors. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0)

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DOI: doi:10.3390/en11040847


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.

Item Details

Item Type:Refereed Article
Keywords:battery energy storage sizing, optimization, energy management systems, economic load dispatch, grey wolf optimization (GWO), microgrid
Research Division:Engineering
Research Group:Electrical engineering
Research Field:Electrical energy generation (incl. renewables, excl. photovoltaics)
Objective Division:Energy
Objective Group:Renewable energy
Objective Field:Renewable energy not elsewhere classified
UTAS Author:Nimma, KS (Mr Kutaiba El-Bidairi)
UTAS Author:Al-Falahi, MDA (Mr Monaaf Al-Falahi)
UTAS Author:Nguyen, HD (Dr Hung Nguyen)
UTAS Author:Jayasinghe, SDG (Dr Shantha Jayasinghe Arachchillage)
UTAS Author:Negnevitsky, M (Professor Michael Negnevitsky)
ID Code:125678
Year Published:2018
Web of Science® Times Cited:37
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2018-04-30
Last Modified:2018-11-26
Downloads:156 View Download Statistics

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