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http://dx.doi.org/10.5515/KJKIEES.2018.29.7.566

Study on Power Line Coupler for Auxiliary Power to Overhead Line  

Lee, Gunbok (Propulsion System Research Team, Korea Railroad Research Institute)
Yi, Kyung-Pyo (Propulsion System Research Team, Korea Railroad Research Institute)
Kim, Myung Yong (Propulsion System Research Team, Korea Railroad Research Institute)
Lee, Su Gil (Propulsion System Research Team, Korea Railroad Research Institute)
Chang, Sang Hoon (Propulsion System Research Team, Korea Railroad Research Institute)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.29, no.7, 2018 , pp. 566-569 More about this Journal
Abstract
A power line coupler that can apply high-frequency power to a railway overhead line structure was analyzed. It is difficult to supply auxiliary power to an overhead line in a high-voltage environment, and doing so requires a long-distance transfer. A method is proposed that utilizes the resonance on the Rogowski coil, which does not use a magnetic core. A simple overhead line structure was fabricated that consisted of a contact wire, messenger wire, and dropper. Couplers of various sizes were fabricated and deployed on the messenger wire, and the transfer characteristics of the two couplers were compared at a distance. As a result of applying the matching circuit to the coupler, the transmission efficiency was 53% at a distance of 2.5 m. The proposed method shows that it is possible to apply the auxiliary power by using the existing conductor in a special structure, such as the overhead line.
Keywords
Contactless; Wireless Power; Overhead Line; Power Coupler; Powerline Communication;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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