Real Time Energy Storage Sharing With Load Scheduling: A Lyapunov-Based Approach

This paper studies energy storage sharing in a grid-connected residential microgrid, where a group of households with controllable loads and renewable generations cooperatively shares an energy storage. By exploiting delay tolerance of elastic loads, we develop a joint real time storage sharing and...

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Main Authors: Hailing Zhu, Khmaies Ouahada, Suvendi Rimer
Format: Article
Language:English
Published: IEEE 2021-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9382304/
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author Hailing Zhu
Khmaies Ouahada
Suvendi Rimer
author_facet Hailing Zhu
Khmaies Ouahada
Suvendi Rimer
author_sort Hailing Zhu
collection DOAJ
description This paper studies energy storage sharing in a grid-connected residential microgrid, where a group of households with controllable loads and renewable generations cooperatively shares an energy storage. By exploiting delay tolerance of elastic loads, we develop a joint real time storage sharing and load management system that takes into consideration the operational constraints of the shared energy storage coupled with the time-varying load demands and stochastic renewable generations of all households, with the aim of minimizing the long term time-averaged energy costs of the households without reducing energy consumption. A Lyapunov-based online battery sharing control algorithm is designed to jointly optimize energy consumption, load scheduling and energy charging/discharging actions of individual households only based on current system states. The proposed online sharing algorithm enables the households to optimally utilize the shared battery and reschedule their delay tolerant loads in a distributed but coordinated fashion, while satisfying the time-varying energy consumption preference of each household. Numerical simulation results demonstrate that the low-complexity joint storage sharing and load scheduling algorithm serves the load demands of each household with a lower delay at a relatively low cost while facilitating a fair utilization of the shared energy among the households in terms of their energy contributions.
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spelling doaj.art-54e295674c0a4b008822df2258e533782022-12-21T19:52:47ZengIEEEIEEE Access2169-35362021-01-019466264664010.1109/ACCESS.2021.30677889382304Real Time Energy Storage Sharing With Load Scheduling: A Lyapunov-Based ApproachHailing Zhu0https://orcid.org/0000-0003-4022-6592Khmaies Ouahada1https://orcid.org/0000-0002-8462-5061Suvendi Rimer2Department of Electrical and Electronic Engineering Science, University of Johannesburg, Johannesburg, South AfricaDepartment of Electrical and Electronic Engineering Science, University of Johannesburg, Johannesburg, South AfricaDepartment of Electrical and Electronic Engineering Science, University of Johannesburg, Johannesburg, South AfricaThis paper studies energy storage sharing in a grid-connected residential microgrid, where a group of households with controllable loads and renewable generations cooperatively shares an energy storage. By exploiting delay tolerance of elastic loads, we develop a joint real time storage sharing and load management system that takes into consideration the operational constraints of the shared energy storage coupled with the time-varying load demands and stochastic renewable generations of all households, with the aim of minimizing the long term time-averaged energy costs of the households without reducing energy consumption. A Lyapunov-based online battery sharing control algorithm is designed to jointly optimize energy consumption, load scheduling and energy charging/discharging actions of individual households only based on current system states. The proposed online sharing algorithm enables the households to optimally utilize the shared battery and reschedule their delay tolerant loads in a distributed but coordinated fashion, while satisfying the time-varying energy consumption preference of each household. Numerical simulation results demonstrate that the low-complexity joint storage sharing and load scheduling algorithm serves the load demands of each household with a lower delay at a relatively low cost while facilitating a fair utilization of the shared energy among the households in terms of their energy contributions.https://ieeexplore.ieee.org/document/9382304/Energy managementenergy storage sharingload managementLyapunov optimizationsmart grids
spellingShingle Hailing Zhu
Khmaies Ouahada
Suvendi Rimer
Real Time Energy Storage Sharing With Load Scheduling: A Lyapunov-Based Approach
IEEE Access
Energy management
energy storage sharing
load management
Lyapunov optimization
smart grids
title Real Time Energy Storage Sharing With Load Scheduling: A Lyapunov-Based Approach
title_full Real Time Energy Storage Sharing With Load Scheduling: A Lyapunov-Based Approach
title_fullStr Real Time Energy Storage Sharing With Load Scheduling: A Lyapunov-Based Approach
title_full_unstemmed Real Time Energy Storage Sharing With Load Scheduling: A Lyapunov-Based Approach
title_short Real Time Energy Storage Sharing With Load Scheduling: A Lyapunov-Based Approach
title_sort real time energy storage sharing with load scheduling a lyapunov based approach
topic Energy management
energy storage sharing
load management
Lyapunov optimization
smart grids
url https://ieeexplore.ieee.org/document/9382304/
work_keys_str_mv AT hailingzhu realtimeenergystoragesharingwithloadschedulingalyapunovbasedapproach
AT khmaiesouahada realtimeenergystoragesharingwithloadschedulingalyapunovbasedapproach
AT suvendirimer realtimeenergystoragesharingwithloadschedulingalyapunovbasedapproach