A review of hierarchical energy management system in networked microgrids for optimal inter-microgrid power exchange

Mohd Yassim, Halyani and Abdullah, Mohd Noor and Chin Kim Gan, Chin Kim Gan and Ahmed, Asif (2024) A review of hierarchical energy management system in networked microgrids for optimal inter-microgrid power exchange. Electric Power Systems Research, 231. pp. 1-12.

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Abstract

A networked microgrid (NMG) is a novel cyber-physical system that provides power to urban and rural communities. The benefits of NMG that coupled with hierarchical energy management system (EMS) include increased renewable energy utilization, reliability, system efficiency, and flexibility in inter-microgrid (MG) power exchange (PX). Nevertheless, achieving secure and optimal NMG operation would require hierarchical EMS strategies that can manage uncertainties such as renewable generation fluctuations, load variation, energy prices, and flexible bidirectional PX. This paper outlines the NMG concept and various power balance methods. Subsequently, a comprehensive review of hierarchical EMS designs for NMG is presented. Four NMG models are introduced, and a comparison of various EMS strategies based on objectives, constraints, and optimization methods is also elaborated. Additionally, this paper addresses flexible bidirectional power flow between multiple MGs and the utility grid (UG) within three PX scenarios (MG-to-MG, MG-to-UG, and UG-to-MG). The advantages and challenges of hierarchical EMS for NMG with bidirectional power flow are also discussed considering grid stability, economic viability, and environmental impact. Finally, future research directions for enhancing the NMG model for optimal inter-MG PX are established. It highlights the efficient hierarchical EMS strategies and optimization algorithms for more reliable, affordable, and sustainable NMG operation.

Item Type:	Article
Uncontrolled Keywords:	Distributed energy resources Energy management system Networked microgrid operation Optimization algorithm Power exchange
Subjects:	T Technology > T Technology (General)
Divisions:	Faculty of Electrical and Electronic Engineering > FKEE
Depositing User:	Mr. Mohamad Zulkhibri Rahmad
Date Deposited:	04 Jun 2024 03:01
Last Modified:	04 Jun 2024 03:01
URI:	http://eprints.uthm.edu.my/id/eprint/11077

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