Design, construction and performance of a buck-boost converter for an ultracapacitor-based auxiliary energy system for electric vehicles

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dc.contributor.authorOrtuzar Dworsky, Micah Etan
dc.contributor.authorDixon Rojas, Juan
dc.contributor.authorMoreno de la Carrera, Jorge Alejandro
dc.date.accessioned2022-05-11T20:26:38Z
dc.date.available2022-05-11T20:26:38Z
dc.date.issued2003
dc.description.abstractThis paper describes step by step the process of designing, constructing and testing a bidirectional buck-boost converter. This converter is conceiving to be used as a controlled energy-transfer-equipment between the main energy source of an electric vehicle (a battery pack in this case) and an auxiliary energy system based on ultracapacitors. The converter is able to transfer energy in both directions, at rates of more than 40 kW. The battery pack's nominal voltage is 330 V, while the ultracapacitor's voltage depends on their state of charge (SOC), ranging from 100 V to 300 V. Equations governing current transfer and current ripple are analyzed. These equations will be used as guidelines for the control system design and smoothing inductor size requirement. The topology used is a buck-boost configuration. Special care had to be taken in designing the smoothing inductor and managing thermal loses, for these are critical to the overall performance. The inductor constructed, rating l.5 mH, is capable of transferring 200 A for several minutes with low loses and no core saturation (air core was used). A special water-cooled heatsink was designed and constructed, with a very low volume of less than 900 cc and a thermal resistance of less than 0.011/spl deg/C/W. The control system was implemented on a TMS320F241 DSP from Texas Instruments, which consists in two control loops. The first one controls the converter's current, using as a reference the value obtained from the second loop, which controls the ultracapacitors state of charge (SOC). Criteria ruling this second loop are not discussed in this paper. Finally, some experimental results of the overall system are displayed.
dc.fuente.origenIEEE
dc.identifier.doi10.1109/IECON.2003.1280706
dc.identifier.eissn0-7803-7906-3
dc.identifier.urihttps://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=1280706
dc.identifier.urihttps://doi.org/10.1109/IECON.2003.1280706
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/63807
dc.information.autorucEscuela de ingeniería ; Ortuzar Dworsky, Micah Etan ; S/I ; 4366
dc.information.autorucEscuela de ingeniería ; Dixon Rojas, Juan ; S/I ; 99537
dc.information.autorucEscuela de ingeniería ; Moreno de la Carrera, Jorge Alejandro ; S/I ; 14452
dc.language.isoen
dc.nota.accesoContenido parcial
dc.pagina.final2894
dc.pagina.inicio2889
dc.publisherIEEE
dc.relation.ispartofAnnual Conference of the IEEE Industrial Electronics Society (IEEE Cat. No.03CH37468) (29° : 2003 : Roanoke, Estados Unidos)
dc.rightsacceso restringido
dc.subjectElectric vehicles
dc.subjectControl systems
dc.subjectInductors
dc.subjectBatteries
dc.subjectSupercapacitors
dc.subjectVoltage
dc.subjectEquations
dc.subjectSmoothing methods
dc.subjectThermal management
dc.subjectThermal resistance
dc.titleDesign, construction and performance of a buck-boost converter for an ultracapacitor-based auxiliary energy system for electric vehicleses_ES
dc.typecomunicación de congreso
sipa.codpersvinculados4366
sipa.codpersvinculados99537
sipa.codpersvinculados14452
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