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Title: Sensitivity Analysis of a Wireless Power Transfer (WPT) System for Electric Vehicle Application

This paper presents a detailed parametric sensitivity analysis for a wireless power transfer (WPT) system in electric vehicle application. Specifically, several key parameters for sensitivity analysis of a series-parallel (SP) WPT system are derived first based on analytical modeling approach, which includes the equivalent input impedance, active / reactive power, and DC voltage gain. Based on the derivation, the impact of primary side compensation capacitance, coupling coefficient, transformer leakage inductance, and different load conditions on the DC voltage gain curve and power curve are studied and analyzed. It is shown that the desired power can be achieved by just changing frequency or voltage depending on the design value of coupling coefficient. However, in some cases both have to be modified in order to achieve the required power transfer.
  1. ORNL
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Conference: IEEE Energy Conversion Congress & Exposition (ECCE 2016), Milwaukee, WI, USA, 20160918, 20160922
Research Org:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). National Transportation Research Center (NTRC); Power Electronics and Electric Machinery Research Facility
Sponsoring Org:
ORNL work for others
Country of Publication:
United States
wireless charging; electric vehicle