A Heterogeneous Inductive Power Transfer System for Electric Vehicles with Spontaneous Constant Current and Constant Voltage Output Features

An inductively coupled wireless power transfer system is proposed in this paper, which is designed to comply with the battery’s load characteristics. A loosely coupled transformer with high coupling coefficient is proposed. A heterogeneous compensation topology is proposed which is able to switch be...

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Main Authors: Jing Zhou, Pengzhi Yao, Kan Guo, Pengju Cao, Yao Zhang, Hao Ma
Format: Article
Language:English
Published: MDPI AG 2020-11-01
Series:Electronics
Subjects:
Online Access:https://www.mdpi.com/2079-9292/9/11/1978
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spelling doaj-fac10b5b20c344379e4963a8eed1bb4b2020-11-25T04:10:47ZengMDPI AGElectronics2079-92922020-11-0191978197810.3390/electronics9111978A Heterogeneous Inductive Power Transfer System for Electric Vehicles with Spontaneous Constant Current and Constant Voltage Output FeaturesJing Zhou0Pengzhi Yao1Kan Guo2Pengju Cao3Yao Zhang4Hao Ma5College of Electrical Engineering, Zhejiang University, Hangzhou 310027, ChinaCollege of Electrical Engineering, Zhejiang University, Hangzhou 310027, ChinaCollege of Electrical Engineering, Zhejiang University, Hangzhou 310027, ChinaCollege of Electrical Engineering, Zhejiang University, Hangzhou 310027, ChinaSchool of Automation, Hangzhou Dianzi University, Hangzhou 310000, ChinaCollege of Electrical Engineering, Zhejiang University, Hangzhou 310027, ChinaAn inductively coupled wireless power transfer system is proposed in this paper, which is designed to comply with the battery’s load characteristics. A loosely coupled transformer with high coupling coefficient is proposed. A heterogeneous compensation topology is proposed which is able to switch between constant current and constant voltage output mode according to the load resistance. The output characteristic curve agrees with the charging curve of the battery in a whole cycle. The proposed topology has a misalignment range of 300 mm where the coupling coefficient is 0.2. A 3 kW experimental platform is established to verify the theoretical analysis, and the experimental results show that the proposed loosely coupled transformer has high coupling coefficient and high power transmission efficiency (95.2% in aligned position) within a large misalignment range, which agrees with the charging scenario of the electric vehicle.https://www.mdpi.com/2079-9292/9/11/1978wireless power transferelectric vehiclesheterogeneous compensation topology
collection DOAJ
language English
format Article
sources DOAJ
author Jing Zhou
Pengzhi Yao
Kan Guo
Pengju Cao
Yao Zhang
Hao Ma
spellingShingle Jing Zhou
Pengzhi Yao
Kan Guo
Pengju Cao
Yao Zhang
Hao Ma
A Heterogeneous Inductive Power Transfer System for Electric Vehicles with Spontaneous Constant Current and Constant Voltage Output Features
Electronics
wireless power transfer
electric vehicles
heterogeneous compensation topology
author_facet Jing Zhou
Pengzhi Yao
Kan Guo
Pengju Cao
Yao Zhang
Hao Ma
author_sort Jing Zhou
title A Heterogeneous Inductive Power Transfer System for Electric Vehicles with Spontaneous Constant Current and Constant Voltage Output Features
title_short A Heterogeneous Inductive Power Transfer System for Electric Vehicles with Spontaneous Constant Current and Constant Voltage Output Features
title_full A Heterogeneous Inductive Power Transfer System for Electric Vehicles with Spontaneous Constant Current and Constant Voltage Output Features
title_fullStr A Heterogeneous Inductive Power Transfer System for Electric Vehicles with Spontaneous Constant Current and Constant Voltage Output Features
title_full_unstemmed A Heterogeneous Inductive Power Transfer System for Electric Vehicles with Spontaneous Constant Current and Constant Voltage Output Features
title_sort heterogeneous inductive power transfer system for electric vehicles with spontaneous constant current and constant voltage output features
publisher MDPI AG
series Electronics
issn 2079-9292
publishDate 2020-11-01
description An inductively coupled wireless power transfer system is proposed in this paper, which is designed to comply with the battery’s load characteristics. A loosely coupled transformer with high coupling coefficient is proposed. A heterogeneous compensation topology is proposed which is able to switch between constant current and constant voltage output mode according to the load resistance. The output characteristic curve agrees with the charging curve of the battery in a whole cycle. The proposed topology has a misalignment range of 300 mm where the coupling coefficient is 0.2. A 3 kW experimental platform is established to verify the theoretical analysis, and the experimental results show that the proposed loosely coupled transformer has high coupling coefficient and high power transmission efficiency (95.2% in aligned position) within a large misalignment range, which agrees with the charging scenario of the electric vehicle.
topic wireless power transfer
electric vehicles
heterogeneous compensation topology
url https://www.mdpi.com/2079-9292/9/11/1978
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