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Arabian Journal for Science and Engineering

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13-07-2023 | Research Article-Electrical Engineering

Optimal Economic Dispatch to Minimize Load Shedding and Operation Cost for Networked Microgrids

Authors: Khaldon Ahmed Qaid, Aziah Khamis, Chin Kim Gan

Published in: Arabian Journal for Science and Engineering | Issue 11/2023

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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.

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Title: Optimal Economic Dispatch to Minimize Load Shedding and Operation Cost for Networked Microgrids
Authors: Khaldon Ahmed Qaid
Aziah Khamis
Chin Kim Gan
Publication date: 13-07-2023
Publisher: Springer Berlin Heidelberg
Published in: Arabian Journal for Science and Engineering / Issue 11/2023
Print ISSN: 2193-567X
Electronic ISSN: 2191-4281
DOI: https://doi.org/10.1007/s13369-023-08086-z

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