NDLI: Optimisation of planar rectangular coil achieving uniform magnetic field distribution for EV wireless charging based on genetic algorithm

Content Provider	IET Digital Library
Author	Zhang, Yun Wang, Lifang Guo, Yanjie Zhang, Yuwang
Abstract	Inductive power transfer is a method that can be used to transfer power to electric vehicles. The output power and the transmission efficiency drop significantly when there is a misalignment between receiver on the vehicle and transmitter on the parking spot. This can be resolved by designing the transmitter coil that produces uniform magnetic fields for wireless charging. Here, a planar rectangular coil with unevenly spaced turns is proposed for improving the uniform magnetic field distribution over the charging zone, together with the genetic algorithm for determining the geometric parameters of the coil structure. An analysis that is divided into four design variables is presented. The magnetic characteristic of the optimal unevenly spaced transmitter coil using genetic algorithm and optimal evenly spaced transmitter coil using conventional method are compared and analysed. The uniform magnetic field distribution of the designed prototype is measured by an electric and magnetic field probe and by a receiver coil. The measured results agree well with the theoretical values and validate the improved uniform magnetic field distribution.
Starting Page	2706
Ending Page	2712
Page Count	7
ISSN	17554535
Volume Number	12
e-ISSN	17554543
Issue Number	Issue 10, Aug (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/12/10
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2018.6202
Journal	IET Power Electronics
Publisher Date	2019-07-02
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Coil Structure Coils Electric Field Probe Electric Vehicle Electromagnetic Induction EV Wireless Charging Genetic Algorithm Improved Uniform Magnetic Field Distribution Inductive Power Transfer Inductive Power Transmission Inductors And Transformer Magnetic Characteristic Magnetic Field Magnetic Field Probe Optimal Evenly Spaced Transmitter Coil Optimal Unevenly Spaced Transmitter Coil Optimisation Optimisation Technique Output Power Planar Rectangular Coil Receiver Coil Transportation Uniform Magnetic Field Vehicle
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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