Optimal economic dispatch to minimize load shedding and operation cost for networked microgrids

Gan, Chin Kim and Al-Areqi, Khaldon Ahmed Qaid and Khamis, Aziah (2023) Optimal economic dispatch to minimize load shedding and operation cost for networked microgrids. Arabian Journal for Science and Engineering, 48. pp. 15419-15434. ISSN 2193-567X

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Abstract

In this paper, an optimal economic dispatch model is proposed for networked microgrids in normal and contingency operations using particle swarm optimization. To solve the optimal economic dispatch problem, a summation of two objective functions is formulated, which is to minimize the amount of load to be shed and operation cost of the networked microgrids. The performance of the proposed optimal economic dispatch model was evaluated for several scenarios in independent and networked modes based on two IEEE 9-bus test systems. An analytical model based on optimal power flow was developed to identify the optimal buses of the microgrids that should be linked to form the networked microgrids. The results indicate that the proposed model minimizes the operation cost by up to 2.8% and minimizes the amount of load to be shed by up to 5.6% of the networked microgrids. Moreover, the findings show that the operation of the microgrids is more favorable when the microgrids operate in networked mode compared with that when the microgrids work independently, and the cooperation strategy for power sharing significantly reduces the amount of load to be shed for the microgrids.

Item Type:	Article
Uncontrolled Keywords:	Networked microgrids, Optimal economic dispatch, Optimal load shedding, Power sharing, Particle swarm optimization
Divisions:	Faculty of Electrical Engineering
Depositing User:	Norfaradilla Idayu Ab. Ghafar
Date Deposited:	23 Feb 2026 03:54
Last Modified:	23 Feb 2026 03:54
URI:	http://eprints.utem.edu.my/id/eprint/29541
Statistic Details:	View Download Statistic

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