Simulation-Based Feasibility Study on the Wireless Charging Railway System With a Ferriteless Primary Module

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Wireless charging railway (WCR) systems have been recently introduced to solve the drawbacks of conventional electric locomotives such as noise, wear, arching, and sparking during wired power transfer. However, the high infrastructure cost of WCR systems weakens their competitiveness against conventional systems, thereby delaying commercialization. In this paper, a new concept of the WCR system that equips a ferriteless primary module is proposed to minimize the use of ferrite necessary for wireless charging and, therefore, to reduce the infrastructure cost. To effectively and efficiently investigate the feasibility of the proposed system with a high level of design complexity, a design optimization framework for high-power WCR systems is implemented to suppress the magnetic saturation and design abnormality during optimization. This framework successfully determines the optimal design that minimizes the mass of the secondary module with no use of the primary ferrite while satisfying various functional requirements of the WCR systems: electromagnetic field strength, magnetic saturation, and induced voltage. Compared with the ferrite-based WCR system, the proposed system can save up to 7.55 kg/m of primary ferrite, which is approximately $230.40/m for infrastructure costs. Thus, the feasibility of the proposed WCR system is proven through simulation-based design optimization, the results of which demonstrate the potential economic benefit for further commercialization.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2017-02
Language
English
Article Type
Article
Keywords

POWER TRANSFER SYSTEM; ELECTRIC VEHICLES; TAGUCHIS METHOD; PANTOGRAPH; DESIGN; OPTIMIZATION; TECHNOLOGIES; EFFICIENCY; WEAR

Citation

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, v.66, no.2, pp.1004 - 1010

ISSN
0018-9545
DOI
10.1109/TVT.2016.2565703
URI
http://hdl.handle.net/10203/222765
Appears in Collection
GT-Journal Papers(저널논문)
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