Adaptation of Discrete‐Type Cores for Secondary Coils of Wireless Power Transfer System for Railway

Shimode, Daisuke; Murai, Toshiaki; Sawada, Tadashi

doi:10.1002/eej.23000

Cited by 3 publications

(1 citation statement)

References 14 publications

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“…In order to further reduce the load weight and system cost, a new concept of WPT that is equipped with a coreless primary side was derived to minimize the use of ferrite necessary for wireless charging . Compared with the ferrite‐based WPT system, the proposed system could save up to 7.55 kg/m of primary ferrite, which is approximately $230.4/m for infrastructure cost.…”

Section: Wpt For High‐speed Trainsmentioning

confidence: 99%

Review and research progress of wireless power transfer for railway transportation

Wang

2018

IEEJ Transactions Elec Engng

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This paper discusses the history and research progress of wireless power transfer (WPT) for railway transportation. In the field of railway transportation traction power supply, the problems caused by the traditional contact‐type power supply method have become increasingly prominent: the overhead contact network prone to breakages, scraping and wearing the pantograph, etc. WPT technology, which avoids direct contact with the power supply sources and loads, effectively solves these problems. This paper focuses on the application of WPT technology for railway transit, and introduces the research status in China and abroad. Moreover, the main technologies and primary problems of WPT, including magnetic coupler, segmented power supply, design of high‐frequency inverter, system optimization and control and practical applications for trams, maglev vehicles, and high‐speed trains, are reviewed. A detailed analysis and summary on the technologies is also provided. By reviewing the state‐of‐the‐art development of WPT in railways, it is hoped that researchers could be encouraged by these achievements and pushed forward the further development in WPT. © 2018 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

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Section: Wpt For High‐speed Trainsmentioning

confidence: 99%

Review and research progress of wireless power transfer for railway transportation

Wang

2018

IEEJ Transactions Elec Engng

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A Review on the Recent Development in the Design and Optimization of Magnetic Coupling Mechanism of Wireless Power Transmission

Dai

Wang

Zhou

et al. 2020

IEEE Systems Journal

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Optimization of Wireless Power Transfer Based on Improved Marine Predators Algorithm

Chen,

Liang

et al. 2023

Preprint

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Wireless Power Transfer (WPT) has a promising application with the rapid development of electric vehicles (EV). However, the optimization of WPT is still a challenging problem due to its large number of sub-systems. The magnetic coupling mechanism (MCM) is the key energy transmission component for WPT. In order to improve the overall performance of the WPT, an improved Marine Predators Algorithm is proposed and applied to optimize the MCM. In this paper, the detailed analysis model of the MCM using Double D coils is established, and the evaluation indexes of the WPT system are deduced. The improved Marine Predators Algorithm (TQMPA) is proposed based on the Tent map and Quasi-oppositional solutions evaluation. Verified by 20 standard test functions, the TQMPA has significantly improved the ability to escape from the local optimal solution and the convergence speed, especially for the low-dimensional unimodal problem. Then, a multidisciplinary design optimization model of a real-world MCM optimization problem based on collaborative optimization is established, which takes the transmission capability, electromagnetic safety, and miniaturization as sub-systems, respectively. The simulation results further prove that the TQMPA has a stronger optimization ability than the Marine Predators Algorithm (MPA). Under the premise of ensuring electromagnetic safety and a certain anti-offset capability, the power density of MCM is slightly reduced, and the transfer efficiency index and ferrite size have been significantly improved.

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Adaptation of Discrete‐Type Cores for Secondary Coils of Wireless Power Transfer System for Railway

Cited by 3 publications

References 14 publications

Review and research progress of wireless power transfer for railway transportation

Review and research progress of wireless power transfer for railway transportation

A Review on the Recent Development in the Design and Optimization of Magnetic Coupling Mechanism of Wireless Power Transmission

Optimization of Wireless Power Transfer Based on Improved Marine Predators Algorithm

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