Journal of Digital Convergence (디지털융복합연구)

The Society of Digital Policy and Management (한국디지털정책학회)
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Design and Implementation of Wireless Power Transfer System for a Personal Rapid Transit (PRT) Vehicle

PRT 차량의 무선급전 시스템 설계 및 구현

  • Kang, Seok-Won (Future Transportation Systems Research Division, New Transportation Systems Research Center, Korea Railroad Research Institute) ;
  • Jeong, Rag-Gyo (Future Transportation Systems Research Division, New Transportation Systems Research Center, Korea Railroad Research Institute) ;
  • Byun, Yeun-Sub (Future Transportation Systems Research Division, New Transportation Systems Research Center, Korea Railroad Research Institute) ;
  • Um, Ju-Hwan (Future Transportation Systems Research Division, New Transportation Systems Research Center, Korea Railroad Research Institute) ;
  • Kim, Baek-Hyun (Future Transportation Systems Research Division, New Transportation Systems Research Center, Korea Railroad Research Institute)
  • 강석원 (한국철도기술연구원 신교통연구본부 미래교통시스템연구실) ;
  • 정락교 (한국철도기술연구원 신교통연구본부 미래교통시스템연구실) ;
  • 변윤섭 (한국철도기술연구원 신교통연구본부 미래교통시스템연구실) ;
  • 엄주환 (한국철도기술연구원 신교통연구본부 미래교통시스템연구실) ;
  • 김백현 (한국철도기술연구원 신교통연구본부 미래교통시스템연구실)
  • Received : 2014.09.07
  • Accepted : 2014.11.20
  • Published : 2014.11.28
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Abstract

Recently, the traditional paradigm in railroad technology is changing as more efficient and cost-effective electric vehicle (EV) technologies have emerged. The original concept of PRT (Personal Rapid Transit) proposed in the past has come to be regarded as unrealistic, but its feasibility is improving through the utilization of an EV platform. In particular, battery-powered vehicles pose difficult technical challenges in attempts to achieve reliable and efficient operation. However, based on the inductive power transfer (IPT) technology, the fast charging of supercapacitors with high energy density can contribute to overcoming this technical challenge and promote the transition to electric-powered ground transportation by improving the appearance of cities. This study discusses the development process of a power supply system for PRT, including concept design, numerical analysis, and device manufacturing, along with performance predictions and evaluations. In terms of results, the system was found to meet the performance requirements for power supply modules on a test-bed.

최근 들어, 보다 효율적이고 경제성을 갖춘 전기자동차 기술이 등장함에 따라 철도의 전통적인 기술적 패러다임이 변화하고 있다. 오래전에 제안되었지만 이상적인 개념으로 평가받던 수요응답형 순환교통(PRT) 시스템의 경우에도 전기자동차 플랫폼의 활용을 통해서 실현 가능성을 높여가고 있다. 특히, 배터리에 의해 구동되는 차량의 경우 안정적이고 효율적인 운영의 측면에서 기술적인 어려움에 직면하고 있다. 그렇지만, 무선 급전에 의한 급속충전 기술과 고에너지 밀도의 슈퍼커패시터 적용은 이러한 기술적인 난제를 극복하고 도시 미관의 향상을 통해서 전기 에너지를 기반으로 한 신교통수단의 보급을 증대하는데 기여할 것으로 생각된다. 본 논문에서는 한국형 PRT 차량의 전력공급 시스템의 설계, 에너지 소모량 및 장치의 성능 해석과 하드웨어 제작 및 시험에 이르는 일련의 개발과정에 대해서 논한다. 그 결과, 테스트베드에서의 전력공급 모듈의 시험평가 결과가 요구하는 성능에 부합하는 것으로 확인되었다.

Keywords

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