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Experimental verification of a flexible vehicle-to-grid charger for power grid load variance reduction

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dc.citedby10
dc.contributor.authorTan K.M.en_US
dc.contributor.authorRamachandaramurthy V.K.en_US
dc.contributor.authorYong J.Y.en_US
dc.contributor.authorTariq M.en_US
dc.contributor.authorid56119108600en_US
dc.contributor.authorid6602912020en_US
dc.contributor.authorid56119339200en_US
dc.contributor.authorid57220656842en_US
dc.date.accessioned2023-05-29T09:06:35Z
dc.date.available2023-05-29T09:06:35Z
dc.date.issued2021
dc.descriptionDC-DC converters; Digital signal processors; Electric power system control; Electric power transmission networks; Electric vehicles; Energy transfer; Power control; Rectifying circuits; Secondary batteries; Signal processing; Three term control systems; Vehicle-to-grid; Voltage control; Battery chargers; Charging-discharging power; Control strategies; DC converter; Digital signal processor; Electric vehicle batteries; Power; Power grids; Prototype; Vehicle to grids; Charging (batteries); electric vehicle; energy efficiency; experimental study; power generation; smart griden_US
dc.description.abstractThis study designed a Vehicle-to-Grid (V2G) charger consisting of a three-phase AC/DC converter and a DC/DC buck-boost converter with various charger functions, such as charging/discharging, power factor and DC-link voltage controls. The highlight of this charger is its flexibility to accurately control the charging/discharging power of the Electric Vehicle (EV) battery to match the power grid reference targets to achieve a reduction of grid load variance. Moreover, the power factor control was employed to improve the overall charger efficiency through unity power factor operation. Meanwhile, the adopted DC-link voltage control smoothens the charging/discharging power transfer between the AC/DC and DC/DC converters. The control strategies of the proposed charger were successfully implemented via a double-layer PID controller. For practical validation purposes, a 1 kVA V2G charger prototype was constructed whereby the proposed control strategies were coded using the eZDSPF28335 development board. The experimental results revealed that the V2G charger prototype effectively managed the charging/discharging power of the EV battery to achieve a reduction in grid load variance through load leveling and peak load shaving operations. Moreover, the proposed control strategies prevented over-charging/discharging of the EV battery apart from regulating the DC-link voltage and maintaining the charger operation at unity power factor. � 2021 Elsevier Ltden_US
dc.description.natureFinalen_US
dc.identifier.ArtNo120560
dc.identifier.doi10.1016/j.energy.2021.120560
dc.identifier.scopus2-s2.0-85104280912
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85104280912&doi=10.1016%2fj.energy.2021.120560&partnerID=40&md5=f78f7cf91f815c69ab2d3522215202df
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/26076
dc.identifier.volume228
dc.publisherElsevier Ltden_US
dc.sourceScopus
dc.sourcetitleEnergy
dc.titleExperimental verification of a flexible vehicle-to-grid charger for power grid load variance reductionen_US
dc.typeArticleen_US
dspace.entity.typePublication
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