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Title: Sensitivity Analysis of an LCC-LCC Compensated 20-kW Bidirectional Wireless Charging System for Medium-Duty Vehicles

Abstract

In this paper, sensitivity analysis of an LCC-LCC compensated bidirectional wireless charging system is presented. In a wireless charging system for electric vehicle applications, the effective load impedance varies significantly with the state-of-charge (SOC)of the battery. Due to the change in system parameters, resonant frequency, and transferred power, the efficiency of the system varies significantly. Sensitivity analysis of the system characteristics reveals the optimal operating region and required control strategy to operate within that region. Sensitivity analysis is even more important for a bidirectional system with mismatched input and output voltage levels. In this paper, the sensitivity of a bidirectional 20 kW wireless charging system is investigated analytically and the results are validated experimentally. The experimental results for a geometrically matched Double-D (DD) coil-based LCC-LCC tuned bidirectional WCS with asymmetric voltage levels show that the voltage gains and input impedance of the system are highly sensitive near the resonant frequency.

Authors:
 [1]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [2];  [2]; ORCiD logo [2]; ORCiD logo [2]
  1. University of Akron
  2. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1550737
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Conference
Resource Relation:
Conference: IEEE Transportation Electrification Conference and Expo (ITEC 2019) - Novi, Michigan, United States of America - 6/19/2019 8:00:00 AM-6/21/2019 8:00:00 AM
Country of Publication:
United States
Language:
English

Citation Formats

Mostak, Mostak Mohammad, Anwar, Saeed, Onar, Omer, Pries, Jason, Galigekere, Veda Prakash, Asa, Erdem, Su, Gui-Jia, and Wilkins, Jon. Sensitivity Analysis of an LCC-LCC Compensated 20-kW Bidirectional Wireless Charging System for Medium-Duty Vehicles. United States: N. p., 2019. Web.
Mostak, Mostak Mohammad, Anwar, Saeed, Onar, Omer, Pries, Jason, Galigekere, Veda Prakash, Asa, Erdem, Su, Gui-Jia, & Wilkins, Jon. Sensitivity Analysis of an LCC-LCC Compensated 20-kW Bidirectional Wireless Charging System for Medium-Duty Vehicles. United States.
Mostak, Mostak Mohammad, Anwar, Saeed, Onar, Omer, Pries, Jason, Galigekere, Veda Prakash, Asa, Erdem, Su, Gui-Jia, and Wilkins, Jon. Sat . "Sensitivity Analysis of an LCC-LCC Compensated 20-kW Bidirectional Wireless Charging System for Medium-Duty Vehicles". United States. https://www.osti.gov/servlets/purl/1550737.
@article{osti_1550737,
title = {Sensitivity Analysis of an LCC-LCC Compensated 20-kW Bidirectional Wireless Charging System for Medium-Duty Vehicles},
author = {Mostak, Mostak Mohammad and Anwar, Saeed and Onar, Omer and Pries, Jason and Galigekere, Veda Prakash and Asa, Erdem and Su, Gui-Jia and Wilkins, Jon},
abstractNote = {In this paper, sensitivity analysis of an LCC-LCC compensated bidirectional wireless charging system is presented. In a wireless charging system for electric vehicle applications, the effective load impedance varies significantly with the state-of-charge (SOC)of the battery. Due to the change in system parameters, resonant frequency, and transferred power, the efficiency of the system varies significantly. Sensitivity analysis of the system characteristics reveals the optimal operating region and required control strategy to operate within that region. Sensitivity analysis is even more important for a bidirectional system with mismatched input and output voltage levels. In this paper, the sensitivity of a bidirectional 20 kW wireless charging system is investigated analytically and the results are validated experimentally. The experimental results for a geometrically matched Double-D (DD) coil-based LCC-LCC tuned bidirectional WCS with asymmetric voltage levels show that the voltage gains and input impedance of the system are highly sensitive near the resonant frequency.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {6}
}

Conference:
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