LAPSE:2023.24034
Published Article
LAPSE:2023.24034
Performance Assessment of an Energy Management System for a Home Microgrid with PV Generation
Mahmoud Elkazaz, Mark Sumner, Seksak Pholboon, Richard Davies, David Thomas
March 27, 2023
Home energy management systems (HEMS) are a key technology for managing future electricity distribution systems as they can shift household electricity usage away from peak consumption times and can reduce the amount of local generation penetrating into the wider distribution system. In doing this they can also provide significant cost savings to domestic electricity users. This paper studies a HEMS which minimizes the daily energy costs, reduces energy lost to the utility, and improves photovoltaic (PV) self-consumption by controlling a home battery storage system (HBSS). The study assesses factors such as the overnight charging level, forecasting uncertainty, control sample time and tariff policy. Two management strategies have been used to control the HBSS; (1) a HEMS based on a real-time controller (RTC) and (2) a HEMS based on a model predictive controller (MPC). Several methods have been developed for home demand energy forecasting and PV generation forecasting and their impact on the HEMS is assessed. The influence of changing the battery’s capacity and the PV system size on the energy costs and the lost energy are also evaluated. A significant reduction in energy costs and energy lost to the utility can be achieved by combining a suitable overnight charging level, an appropriate sample time, and an accurate forecasting tool. The HEMS has been implemented on an experimental house emulation system to demonstrate it can operate in real-time.
Keywords
battery energy storage, distribution systems, energy forecasting, Model Predictive Control, real-time control, smart home
Suggested Citation
Elkazaz M, Sumner M, Pholboon S, Davies R, Thomas D. Performance Assessment of an Energy Management System for a Home Microgrid with PV Generation. (2023). LAPSE:2023.24034
Author Affiliations
Elkazaz M: Power Electronics, Machines and Control Research Group, The University of Nottingham, Nottingham NG7 2RD, UK; Department of Electrical Power & Machines Engineering, Tanta University, Tanta 31511, Egypt [ORCID]
Sumner M: Power Electronics, Machines and Control Research Group, The University of Nottingham, Nottingham NG7 2RD, UK [ORCID]
Pholboon S: Power Electronics, Machines and Control Research Group, The University of Nottingham, Nottingham NG7 2RD, UK
Davies R: Power Electronics, Machines and Control Research Group, The University of Nottingham, Nottingham NG7 2RD, UK
Thomas D: Power Electronics, Machines and Control Research Group, The University of Nottingham, Nottingham NG7 2RD, UK
Journal Name
Energies
Volume
13
Issue
13
Article Number
E3436
Year
2020
Publication Date
2020-07-03
Published Version
ISSN
1996-1073
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PII: en13133436, Publication Type: Journal Article
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LAPSE:2023.24034
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doi:10.3390/en13133436
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Mar 27, 2023
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CC BY 4.0
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