Effect of the Coil Inner Diameter on the Power Transfer Efficiency of an Electromagnetic Halbach Array Wireless Power Transfer System

Gogo, Tamuno-omie; Zhu, Dibin

doi:10.1109/powermems56853.2022.10007611

Cited by 4 publications

(2 citation statements)

References 11 publications

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“…It is observed that the magnetic field by a single coil is symmetrical on the upper and lower plane of the origin as presented in [30]. EHA has a stronger magnetic field strength in the upper half than that in the lower half as shown in Figure 14(a),(b).…”

Section: Verification Of Magnetic Field Modelmentioning

confidence: 83%

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Analytical modelling with experimental validation of electromagnetic Halbach arrays in wireless power transfer systems

Gogo,

Zhu

2024

IET Microwaves Antenna & Prop

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A mathematical model is presented for the optimisation of an Electromagnetic Halbach Array (EHA) for wireless power transfer. The mathematical model is based on Biot‐Savart's law of magnetic field in a current‐carrying square loop. The model is validated through static electromagnetic simulations in ANSYS Maxwell and found to be accurate and effective when predicting the magnetic field within the EHA box. To verify the analytical and simulation results, an EHA was fabricated, and experimental verification was carried out. The results show that the mathematical model can be widely used in the analysis and design optimisation of EHAs of any size and with diverse parameters in the case of single‐layer square spiral planar coils.

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Section: Verification Of Magnetic Field Modelmentioning

confidence: 83%

“…The magnitude of the magnetic field (

\overrightarrow{B}

) generated by a planar square coil depends largely on the current ( I ), the number of turns ( N ), and other parameters such as the pitch (distance between turns) ( p ), and the inner diameter ( D i ) [30–32].…”

Section: Analytical Modelling Of the Ehamentioning

confidence: 99%

Analytical modelling with experimental validation of electromagnetic Halbach arrays in wireless power transfer systems

Gogo,

Zhu

2024

IET Microwaves Antenna & Prop

Self Cite

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Effects of Coil Geometries on the Performance of Electromagnetic Halbach Array Wireless Power Transfer Systems

Gogo,

Zhu

2024

Lecture Notes in Electrical Engineering

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Hybrid electromagnetic Halbach array for wireless power transfer (WPT) system using variable and uniform pitch coils

Gogo,

Zhu

2024

IET Power Electronics

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The electromagnetic Halbach array (EHA) for wireless power transfer (WPT), designed to improve the transferred power and power transfer distance, has been proven to be effective and can be applied in various consumer applications. This paper presents a hybrid form of the EHA, aimed at improving the quality of power generated and transmitted. The expression for the determination of the magnetic field of a variable pitch flat coil for wireless power transfer and other uses has been derived. The average magnetic field, magnetic flux, and power transfer efficiency are investigated. The power transfer efficiency and the average magnetic field generated by four different design considerations were compared. The hybrid electromagnetic Halbach array wireless power transfer system (HEHA‐WPTS) has also been studied and results are compared with the conventional arrangements. Simulations and experiments were carried out to verify the analytical results obtained. According to the results obtained, the HEHA‐WPTS, with a base coil with variable pitches and uniform side coils, produces a more uniform average magnetic field and a better average power transfer efficiency over a longer power transfer distance.

show abstract

Effect of the Coil Inner Diameter on the Power Transfer Efficiency of an Electromagnetic Halbach Array Wireless Power Transfer System

Cited by 4 publications

References 11 publications

Analytical modelling with experimental validation of electromagnetic Halbach arrays in wireless power transfer systems

Analytical modelling with experimental validation of electromagnetic Halbach arrays in wireless power transfer systems

Effects of Coil Geometries on the Performance of Electromagnetic Halbach Array Wireless Power Transfer Systems

Hybrid electromagnetic Halbach array for wireless power transfer (WPT) system using variable and uniform pitch coils

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