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Investigating the effects of variable pulse charging on temperature during charging of battery electric vehicles

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dc.citedby0
dc.contributor.authorOruganti K.S.P.en_US
dc.contributor.authorVaithilingam C.A.en_US
dc.contributor.authorRamasamy A.en_US
dc.contributor.authorid57209333413en_US
dc.contributor.authorid24831942700en_US
dc.contributor.authorid16023154400en_US
dc.date.accessioned2025-03-03T07:41:39Z
dc.date.available2025-03-03T07:41:39Z
dc.date.issued2024
dc.description.abstractThis study investigates the efficacy of variable pulse charging (VPC) on charging 18,650 secondary battery packs (12 V, 20 Ah) with NMC chemistry. VPC, a modern technique applied to secondary battery charging, aims to mitigate effects like a thermal runaway and thermal propagation caused by increased charging temperature. VPC involves varied duty factors (10 % to 90 %), charging rates (0.5C, 1C, 1.5C), and an optimal switching frequency determined through frequency response analysis. Its digital model is based on in situ electrochemical impedance spectroscopy measurements and MATLAB/Simulink simulations. At charging rates of 0.5C (10 A), 1C (20 A), and 1.5C (30 A), the temperature of the battery pack reaches 42.46 �C, 57.87 �C, and 70.37 �C, respectively. However, implementing VPC at a 50 % duty factor yields temperature reductions of 3.66 �C, 5.06 �C, and 5.42 �C, respectively. Similarly, employing VPC at a 10 % duty cycle results in temperature reductions of 11.2 �C, 17.7 �C, and 19.1 �C, respectively. The results indicate a significant reduction in charging temperature compared to constant current charging. Furthermore, the 1C condition is validated using a custom-made dual active bridge DC-DC variable pulse charger. In conclusion, applying optimal frequency-based VPC with specific duty factors demonstrates the potential to reduce temperature elevation during battery pack charging significantly. ? 2024 Elsevier Ltden_US
dc.description.natureFinalen_US
dc.identifier.ArtNo113919
dc.identifier.doi10.1016/j.est.2024.113919
dc.identifier.scopus2-s2.0-85204891123
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85204891123&doi=10.1016%2fj.est.2024.113919&partnerID=40&md5=9cd656a1d1885eabaf7461a6539433e1
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/36235
dc.identifier.volume101
dc.publisherElsevier Ltden_US
dc.sourceScopus
dc.sourcetitleJournal of Energy Storage
dc.subjectState of charge
dc.subject% reductions
dc.subjectBattery chargers
dc.subjectBattery pack
dc.subjectElectrochemical impedance spectroscopy
dc.subjectElectrochemical-impedance spectroscopies
dc.subjectEV charger
dc.subjectPulse charger
dc.subjectPulse charging
dc.subjectReduction in charging temperature
dc.subjectVariable pulse charging
dc.titleInvestigating the effects of variable pulse charging on temperature during charging of battery electric vehiclesen_US
dc.typeArticleen_US
dspace.entity.typePublication
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