Print Email Facebook Twitter Voltage/Current Doubler Converter for Electric Vehicle Wireless Charging Employing Bipolar Pads Title Voltage/Current Doubler Converter for Electric Vehicle Wireless Charging Employing Bipolar Pads Author Grazian, F. (TU Delft Electrical Sustainable Energy; TU Delft DC systems, Energy conversion & Storage) Soeiro, Thiago B. (TU Delft Electrical Sustainable Energy; TU Delft DC systems, Energy conversion & Storage) Bauer, P. (TU Delft Electrical Sustainable Energy; TU Delft DC systems, Energy conversion & Storage) Department Electrical Sustainable Energy Date 2023 Abstract Light-duty electric vehicles (EVs) typically have a rated voltage of either 400 or 800 V. Especially when considering public parking infrastructures or owners with multiple EVs, e.g., car rental companies, EV wireless chargers must efficiently deliver electric power to both battery options. For this purpose, this article proposes an advanced and compact version of the previously defined voltage/current doubler (V/I-D) converter, here comprising two coupled series-compensated bipolar pads (BPPs). The presented system can efficiently charge EVs with both battery voltage classes at the same power level without affecting the current rating of the converter's circuit components. The control scheme is implemented at the power source side in terms of switching frequency and input voltage, and only passive semiconductor devices are employed on board the EV. The equivalent circuit is analyzed, focusing on the BPPs' undesired cross-coupling and its effect on the power transfer. Methods to compensate for the cross-coupling are proposed regarding the BPP design and operating strategy. At 7.2 kW and aligned BPPs, the dc-to-dc efficiency of 96.34% and 96.53% have been measured at 400 and 800 V, respectively. The proposed method has been experimentally validated at different misalignment profiles while considering battery voltages 300-400 V and 600-800 V, which proves that the V/I -D converter is a universal charging solution for EV batteries. Subject Battery voltagebipolar pads (BPPs)compensation networkscross-couplingelectric vehicles (EVs)inductive power transfer (IPT)wireless charging To reference this document use: http://resolver.tudelft.nl/uuid:35b96fc1-1f61-4cfe-87c0-df1822d36ecf DOI https://doi.org/10.1109/JESTPE.2023.3265402 Embargo date 2023-10-16 ISSN 2168-6777 Source IEEE Journal of Emerging and Selected Topics in Power Electronics, 11 (4), 4549-4562 Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2023 F. Grazian, Thiago B. Soeiro, P. Bauer Files PDF Voltage_Current_Doubler_C ... r_Pads.pdf 3.93 MB Close viewer /islandora/object/uuid:35b96fc1-1f61-4cfe-87c0-df1822d36ecf/datastream/OBJ/view