Research of a Novel Hybrid Shielding Structure for Inductive Power Transfer System

Liu, Yunrui; Yue, Rui; Li, Houji; Wang, Chunfang

doi:10.1109/ipemc-ecceasia48364.2020.9367990

Cited by 3 publications

(2 citation statements)

References 4 publications

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“…This scheme not only improves the electromagnetic shielding effect but also reduces the adverse effect of eddy current loss in the core material on the system power transmission efficiency. Li [ 274 , 275 ] proposed an electromagnetic shielding structure by adding nanocrystalline material between the sector ferrite and the aluminum plate, as shown in Figure 22 b. This structure improves the system coupling coefficient by 7%, while the leakage magnetic field strength in the horizontal direction is reduced by 58% compared to that without shielding.…”

Section: Critical Issues and Hotspots Of Magnetic Materials In Wptmentioning

confidence: 99%

Modern Advances in Magnetic Materials of Wireless Power Transfer Systems: A Review and New Perspectives

et al. 2022

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The magnetic coupling resonant wireless power transfer (MCR-WPT) system is considered to be the most promising wireless power transfer (WPT) method because of its considerable transmission power, high transmission efficiency, and acceptable transmission distance. For achieving magnetic concentration, magnetic cores made of magnetic materials are usually added to MCR-WPT systems to enhance the coupling performance. However, with the rapid progress of WPT technology, the traditional magnetic materials gradually become the bottleneck that restricts the system power density enhancement. In order to meet the electromagnetic characteristics requirements of WPT systems, high-performance Mn-Zn and Ni-Zn ferrites, amorphous, nanocrystalline, and metamaterials have been developed rapidly in recent years. This paper introduces an extensive review of the magnetic materials of WPT systems, concluding with the state-of-the-art WPT technology and the development and application of high-performance magnetic materials. In addition, this study offers an exclusive reference to researchers and engineers who are interested in learning about the technology and highlights critical issues to be addressed. Finally, the potential challenges and opportunities of WPT magnetic materials are presented, and the future development directions of the technology are foreseen and discussed.

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Section: Critical Issues and Hotspots Of Magnetic Materials In Wptmentioning

confidence: 99%

Modern Advances in Magnetic Materials of Wireless Power Transfer Systems: A Review and New Perspectives

et al. 2022

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“…For instance, pancake type coils are used in induction hobs because of their planar architecture [4][5][6][7][8][9]. Similarly, planar coils are chosen for wireless power transfer since they have a two-dimensional structure and can be mounted on a surface without causing too much altitude change [10][11][12][13][14][15]. On the other hand, solenoidal type coils are preferred to be used mostly for induction heating and melting applications [16][17][18][19] together with sensing operations [20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Archives of Electrical Engineering

2022

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This paper reports a new strand wire winding method in a solenoidal coil with limited geometry that enables good impedance matching. In the proposed method strand wires are wound layer-by-layer on top of each other allowing one to set equivalent inductance and resistance of the coil to desired values while obtaining dense magnetic flux and high current carrying capacity. As a proof-of-concept demonstration, simple model setups were constructed with solenoidal coils composed of copper wire strands wound according to the proposed method, and a plastic pipe. The measurements were repeated with a metal shell placed inside the coil to model a complete heating system. System inductance and resistance were measured at two different frequencies. The results show that with the new winding method it is possible to increase a coil's turn number and the number of strand layers composed by the coil. Also, adding and removing strand layers in the proposed coil architectures enable inductance and resistance values to decrease and increase, respectively, in a controlled way. To understand changes of system parameters, simulations were also performed. The calculated inductance and resistance values in the simulations agree well with the measurement results and magnetic flux distribution created in the system demonstrates the changes.

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Research on Input-Parallel Single-Switch WPT System With Load-Independent Constant Voltage Output

Yuan

Wang

Dong-wei

2023

IEEE Trans. Transp. Electrific.

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Research of a Novel Hybrid Shielding Structure for Inductive Power Transfer System

Cited by 3 publications

References 4 publications

Modern Advances in Magnetic Materials of Wireless Power Transfer Systems: A Review and New Perspectives

Modern Advances in Magnetic Materials of Wireless Power Transfer Systems: A Review and New Perspectives

Archives of Electrical Engineering

Research on Input-Parallel Single-Switch WPT System With Load-Independent Constant Voltage Output

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