전기철도용 무접촉 급전방식일 환한 기초검토

Investigation of contactless power transfer system for electric railway

This paper investigates contactless power transfer system for electric railway which makes use of electromagnetic induction among the coils. The transmission line efficiency and the quality factor are introduced to analyze the performance of the contactless power transfer system. Several instances of the mobile loads using contactless power transmission are described to understand practical usefulness.