November 2020

Conference Paper

Design of Auxiliary Circuit Elements for Achieving Zero Voltage Switching in a Wireless Power Transfer System

By:
Saha, Tarak; Mukherjee, Subhajyoti ; Galigekere, Veda Prakash ; Onar, Omer C
Page Number:
5537-5544
Book Title:
Proceedings of the 2020 IEEE Energy Conversion Congress and Exposition (ECCE)
Publication Date:
November 5, 2020
Publisher Location:
IEEE, District of Columbia, United States of America
Conference Name:
2020 IEEE Energy Congress and Exposition
Conference Location:
Detroit, Michigan, United States of America
Conference Sponsor:
IEEE, PELS, IAS
View DOI Listing:
https://doi.org/10.1109/ECCE44975.2020.9236138

Abstract

The auxiliary resonant commutated pole (ARCP) is being used to achieve zero voltage switching (ZVS) of power switches for improved efficiency and/or to reduce dv/dt at the switch node for better electromagnetic interference (EMI) performance and overall system reliability. This paper shows how an ARCP circuit can be used in a wireless power transfer system to achieve ZVS. Detailed analysis of ARCP circuit operation is presented to determine the requirements for achieving ZVS in the main switches of a wireless electric vehicle charging system. Based on this analysis, a design algorithm is developed to optimize the design of the ZVS assisting circuit components. The designed ARCP achieves soft switching of the MOSFETs in the primary inverter of an 85 kHz, 10 kW series-series compensated, stationary wireless power transfer system.

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