Experimental evaluation of a real time energy management system for stand-alone microgrids in day-ahead markets

Marzband, Mousa, Sumper, Andreas, Ruiz-Álvarez, Albert, Domínguez-García, José Luis and Tomoiagă, Bogdan (2013) Experimental evaluation of a real time energy management system for stand-alone microgrids in day-ahead markets. Applied Energy, 106. pp. 365-376. ISSN 0306-2619

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Abstract

A Microgrid (MG) Energy Management System (EMS) is a vital supervisory control to make decisions regarding the best use of the electric power generation resources and storage devices within this MG. This paper presents an operational architecture for Real Time Operation (RTO) of an islanded MG. This architecture considers two different parts including Central Control Unit (CCU) and MG Testbed. CCU implements an EMS based on Local Energy Market (LEM) to control a MG. In order to reach this objective, this unit executes Day Ahead Scheduling (DAS) and Real Time Scheduling (RTS). Regarding DAS, a Modified Conventional EMS (MCEMS) based on LEM (MCEMS-LEM) algorithm has been proposed to find out hourly power set-points of Distributed Energy Resources (DERs) and customers. LEM is also presented in MCEMS-LEM to obtain the best purchasing price in Day-Ahead Market (DAM), as well as to maximize the utilization of existing DER. With regard to RTS, it must update and feedback the power set-points of DER by considering the results of DAS. The presented architecture is flexible and could be used for different configurations of MGs also in different scenarios. Simulations and experimental evaluations have been carried out using real data to test the performance and accuracy of the MG testbed. This paper aims to operate the MG in islanded mode, ensuring uninterruptable power supply services and reducing the global cost of generated power. Results demonstrate the effectiveness of the proposed algorithm and show a reduction in the generated power cost by almost 8.5%.

Item Type:	Article
Uncontrolled Keywords:	Day-ahead market; Energy management system; Local energy market; Single side auction; Microgrid
Subjects:	G900 Others in Mathematical and Computing Sciences H600 Electronic and Electrical Engineering
Department:	Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User:	Paul Burns
Date Deposited:	13 Mar 2018 16:20
Last Modified:	11 Oct 2019 21:31
URI:	http://nrl.northumbria.ac.uk/id/eprint/33719

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