Design algorithm of a uniform magnetic field transmitter intended for the wireless charging of electric vehicles

Huang, Jingduo; Hong, Tianqi; Bojarski, Mariusz; León, Francisco de; Czarkowski, Dariusz

doi:10.1109/ievc.2014.7056092

Cited by 5 publications

(4 citation statements)

References 15 publications

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“…Therefore, some papers presented algorithms of the design procedure for the optimal circular magnetic structure. Huang et al [42] proposed a design procedure of a funnel-shaped circular coil to obtain better uniform magnetic field distribution than that of planar type, and Hadadtehrani et al [43] presented a conical shape of the circular coil. Still, the funnel and conical shapes decrease the tolerance of horizontal misalignment, which is inferior to that of planar circular type.…”

Section: Coil and Pad Structurementioning

confidence: 99%

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Review of inductively coupled power transfer for electric vehicle charging

Aziz

Romlie

Baharudin

2019

IET Power Electronics

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Inductively coupled power transfer (ICPT) is a technology that is implemented to charge electric vehicles (EVs) wirelessly. Some developments from the past years indicate that this promising charging method has the potential to replace wired charging methods. Thus, some aspects of designing ICPT need to be discussed and considered to develop an optimal system. However, most reviews from the previous articles focused on the developments of ICPT systems in the scope of EV charging. This study not only reviews current developments and topical issues and challenges in high-power ICPT systems, but also presents several techniques for analysing the system as well as further developments for wireless EV charging adapted from the other electromagnetic field applications. This study will assist readers to analyse any proposed ICPT systems using current methods of analysis and to tackle highlighted topical issues presented from the previous technical papers.

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Section: Coil and Pad Structurementioning

confidence: 99%

“…Huang et al . [42] proposed a design procedure of a funnel‐shaped circular coil to obtain better uniform magnetic field distribution than that of planar type, and Hadadtehrani et al . [43] presented a conical shape of the circular coil.…”

Section: Recent Developments Of Icptmentioning

confidence: 99%

Review of inductively coupled power transfer for electric vehicle charging

Aziz

Romlie

Baharudin

2019

IET Power Electronics

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“…Some scholars have introduced genetic algorithms into single-coil designs [18][19][20], but most studies have focused only on rectangular coils, and the amount of computation necessary is very large. By extending the structure of a single coil in the vertical direction, a uniform magnetic field can be achieved more easily at the expense of space occupancy [21]. However, the freedom in designing a single coil is limited, so it is difficult to achieve a breakthrough with this scheme.…”

Section: Introductionmentioning

confidence: 99%

A Parameter Design Method for a Wireless Power Transmission System with a Uniform Magnetic Field

Zhang

et al. 2022

Energies

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In a wireless power transfer (WPT) system, misalignment on the transceiver side has a major impact on the transmission efficiency. However, a uniform magnetic field can mitigate the detrimental impact of offsets on the system performance. In this paper, an optimized double-D (DD) coil is proposed by dividing the wires into two groups. The parametric design approach proceeds from the outside to the inside of the coil. The uniformity of the magnetic field of the improved design is increased by 20.7% compared to that of a regular DD coil. The average transmission efficiency of the final test prototype can reach 85%, and the offset rates in the X and Y directions are only 3.21% and 3.43%, respectively, when misalignment occurs. This design can effectively improve the anti-offset ability of the system and can be generalized to the design of other types of coils.

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“…The weaving‐type coil is wounded in a complex way and needs large amounts of wires, which results in low power transfer efficiency and low output power. A novel funnel‐shaped coil can produce a uniform magnetic field [15]. However, the funnel‐shaped coil turns are distributed both in the radial direction and the vertical direction so the funnel‐shaped coil is a little thick.…”

Section: Introductionmentioning

confidence: 99%

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

Wang

Guo

Zhang

2019

IET Power Electronics

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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.

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Design algorithm of a uniform magnetic field transmitter intended for the wireless charging of electric vehicles

Cited by 5 publications

References 15 publications

Review of inductively coupled power transfer for electric vehicle charging

Review of inductively coupled power transfer for electric vehicle charging

A Parameter Design Method for a Wireless Power Transmission System with a Uniform Magnetic Field

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

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