Next Article in Journal
Correction: Liang, Y., et al. Short-Term Load Forecasting Based on Wavelet Transform and Least Squares Support Vector Machine Optimized by Improved Cuckoo Search. Energies 2016, 9, 827
Next Article in Special Issue
Wireless Power Transfer System Architectures for Portable or Implantable Applications
Previous Article in Journal
Evaluation of Conservation Voltage Reduction with Analytic Hierarchy Process: A Decision Support Framework in Grid Operations Planning
Previous Article in Special Issue
Cost-Effectiveness Comparison of Coupler Designs of Wireless Power Transfer for Electric Vehicle Dynamic Charging
Article Menu
Issue 12 (December) cover image

Export Article

Open AccessArticle
Energies 2016, 9(12), 1075; doi:10.3390/en9121075

Development of a 60 kHz, 180 kW, Over 85% Efficiency Inductive Power Transfer System for a Tram

1
School of Electrical and Computer Engineering, University of Seoul, Seoul 02504, Korea
2
Metropolitan Transportation Research Center, Korea Railroad Research Institute, Uiwang 16105, Korea
*
Author to whom correspondence should be addressed.
Academic Editor: Hongjian Sun
Received: 7 October 2016 / Revised: 3 December 2016 / Accepted: 8 December 2016 / Published: 16 December 2016
(This article belongs to the Special Issue Wireless Power Transfer 2016)
View Full-Text   |   Download PDF [6945 KB, uploaded 16 December 2016]   |  

Abstract

Conventional contact-based train power transfer systems have high maintenance costs and safety issues and cause noise and additional aerodynamic drag. Instead of the conventional system, a loosely coupled online wireless power transfer (WPT) system for a train is proposed in this paper. The operating frequency of the proposed design is 60 kHz to ensure a low flux density and a high-efficiency system with a large air gap. In addition, a new transmitter track and pick-up geometry for 60 kHz operation are designed using finite element analysis (FEA). The proposed design is evaluated theoretically and experimentally. By using the simulated results, a new 180 kW, 15 m test-bed for a tram is constructed. The total power transfer efficiency is greater than 85% at the rated output power, and the loss distribution in the system is identified. Electromagnetic field (EMF) radiation and the voltage induction at the rail are measured for safety evaluation. The measured EMF satisfied international guidelines. View Full-Text
Keywords: wireless power transfer (WPT); inductive power transfer; on-line electric vehicle (OLEV); coil design; hybrid train wireless power transfer (WPT); inductive power transfer; on-line electric vehicle (OLEV); coil design; hybrid train
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Lee, S.-H.; Kim, J.-H.; Lee, J.-H. Development of a 60 kHz, 180 kW, Over 85% Efficiency Inductive Power Transfer System for a Tram. Energies 2016, 9, 1075.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top