loading page

Inductive Power Transfer System for CC/CV Charging Based on Secondary Variable Inductor
  • +2
  • Qinglin Zhao,
  • Mingyao Liang,
  • Tao Wang,
  • Jinlong Gao,
  • Deyu Wang
Qinglin Zhao
Yanshan University School of Electrical Engineering

Corresponding Author:[email protected]

Author Profile
Mingyao Liang
Yanshan University School of Electrical Engineering
Author Profile
Tao Wang
Yanshan University School of Electrical Engineering
Author Profile
Jinlong Gao
Yanshan University School of Electrical Engineering
Author Profile
Deyu Wang
Yanshan University School of Electrical Engineering
Author Profile

Abstract

In response to the demand for battery packages in electric vehicles (EVs), a charging system with constant current (CC) and constant voltage (CV) two-stage output characteristics should be designed and implemented. This paper proposes an inductive power transfer (IPT) system with a double-sided inductor-capacitor-capacitor (LCC) compensation network connected with a series variable inductor (VI) on the secondary side. An IPT prototype with a transfer distance of 150mm and an output power of 3kW is built. In addition, within the set misalignment range, A constant current output mode of 7.85A and a constant voltage output mode of 400V can be achieved successively, avoiding adding DC/DC converters. The experimental results show that the energy transfer efficiency reaches 87.9% with the alignment of the magnetic coupling mechanism.