Charging Scheduling of Hybrid Energy Storage Systems for EV Charging Stations

The growing demand for electric vehicles (EV) in the last decade and the most recent European Commission regulation to only allow EV on the road from 2035 involved the necessity to design a cost-effective and sustainable EV charging station (CS). A crucial challenge for charging stations arises from...

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Main Authors: Gülsah Erdogan, Wiem Fekih Hassen
Format: Article
Language:English
Published: MDPI AG 2023-09-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/16/18/6656
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author Gülsah Erdogan
Wiem Fekih Hassen
author_facet Gülsah Erdogan
Wiem Fekih Hassen
author_sort Gülsah Erdogan
collection DOAJ
description The growing demand for electric vehicles (EV) in the last decade and the most recent European Commission regulation to only allow EV on the road from 2035 involved the necessity to design a cost-effective and sustainable EV charging station (CS). A crucial challenge for charging stations arises from matching fluctuating power supplies and meeting peak load demand. The overall objective of this paper is to optimize the charging scheduling of a hybrid energy storage system (HESS) for EV charging stations while maximizing PV power usage and reducing grid energy costs. This goal is achieved by forecasting the PV power and the load demand using different deep learning (DL) algorithms such as the recurrent neural network (RNN) and long short-term memory (LSTM). Then, the predicted data are adopted to design a scheduling algorithm that determines the optimal charging time slots for the HESS. The findings demonstrate the efficiency of the proposed approach, showcasing a root-mean-square error (RMSE) of 5.78% for real-time PV power forecasting and 9.70% for real-time load demand forecasting. Moreover, the proposed scheduling algorithm reduces the total grid energy cost by 12.13%.
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spelling doaj.art-a364ae86974242fdb784561052a45f672023-11-19T10:28:15ZengMDPI AGEnergies1996-10732023-09-011618665610.3390/en16186656Charging Scheduling of Hybrid Energy Storage Systems for EV Charging StationsGülsah Erdogan0Wiem Fekih Hassen1Chair of Distributed Information Systems, University of Passau, Innstraße 41, 94032 Passau, GermanyChair of Distributed Information Systems, University of Passau, Innstraße 41, 94032 Passau, GermanyThe growing demand for electric vehicles (EV) in the last decade and the most recent European Commission regulation to only allow EV on the road from 2035 involved the necessity to design a cost-effective and sustainable EV charging station (CS). A crucial challenge for charging stations arises from matching fluctuating power supplies and meeting peak load demand. The overall objective of this paper is to optimize the charging scheduling of a hybrid energy storage system (HESS) for EV charging stations while maximizing PV power usage and reducing grid energy costs. This goal is achieved by forecasting the PV power and the load demand using different deep learning (DL) algorithms such as the recurrent neural network (RNN) and long short-term memory (LSTM). Then, the predicted data are adopted to design a scheduling algorithm that determines the optimal charging time slots for the HESS. The findings demonstrate the efficiency of the proposed approach, showcasing a root-mean-square error (RMSE) of 5.78% for real-time PV power forecasting and 9.70% for real-time load demand forecasting. Moreover, the proposed scheduling algorithm reduces the total grid energy cost by 12.13%.https://www.mdpi.com/1996-1073/16/18/6656scheduling optimizationHESSPV powerload demandRNNLSTM
spellingShingle Gülsah Erdogan
Wiem Fekih Hassen
Charging Scheduling of Hybrid Energy Storage Systems for EV Charging Stations
Energies
scheduling optimization
HESS
PV power
load demand
RNN
LSTM
title Charging Scheduling of Hybrid Energy Storage Systems for EV Charging Stations
title_full Charging Scheduling of Hybrid Energy Storage Systems for EV Charging Stations
title_fullStr Charging Scheduling of Hybrid Energy Storage Systems for EV Charging Stations
title_full_unstemmed Charging Scheduling of Hybrid Energy Storage Systems for EV Charging Stations
title_short Charging Scheduling of Hybrid Energy Storage Systems for EV Charging Stations
title_sort charging scheduling of hybrid energy storage systems for ev charging stations
topic scheduling optimization
HESS
PV power
load demand
RNN
LSTM
url https://www.mdpi.com/1996-1073/16/18/6656
work_keys_str_mv AT gulsaherdogan chargingschedulingofhybridenergystoragesystemsforevchargingstations
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