Journal of the Korean Society for Railway (한국철도학회논문집)

The Korean Society for Railway (한국철도학회)
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A Study on the HAZOP-KR for Hazard Analysis of Train Control Systems

열차제어시스템 위험원 분석을 위한 HAZOP-KR에 대한 연구

  • 황종규 (한국철도기술연구원) ;
  • 조현정 (한국철도기술연구원, 열차제어통신연구실) ;
  • 한찬희 ((주)대아티아이 기술연구소) ;
  • 조우식 ((주)대아티아이 기술연구소) ;
  • 안진 ((주)대아티아이 기술연구소) ;
  • 하동명 (세명대학교 보건안전공학과)
  • Received : 2009.08.31
  • Accepted : 2010.04.16
  • Published : 2010.08.26
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Abstract

Train control system require high level of safety since these are vital control system to ensure safe operation of the train. According to these reason, safety-related regulations for railway signaling systems are standardized in IEC. In Korea, many attempts are tried to procure the level to meet the international standards, but thats's efforts are beginning steps. HAZOP study is recommended for hazard analysis at IEC standards, but this method has several unsuitable problems because this method is developed in chemical plant domain. In this paper we recommend new method of HAZOP, named HAZOP-KR, which would be suitable for analyzing safety of the train control systems. An example of this method applied to real system is also included.

열차제어시스템은 열차의 안전운행을 책임지는 바이탈한 제어장치로서 높은 안전성이 요구되고 있다. 이에 따라 유럽을 중심으로 열차제어시스템의 안전성 확보 및 평가를 위한 요구사항들이 국제 규격화되고 있다. 국내에서도 IEC와 같은 국제규격에 따라 안전성 확보를 위한 노력이 진행 중이지만 아직은 시작 단계에 불과하다. 관련된 IEC 규격에서는 위험원 분석을 HAZOP 기법을 적용하도록 권고하고 있지만, 이 기법은 화학공정 분야에서 발전된 방법으로 철도시스템에 다소 부적절한 부분이 있다. 본 논문에서는 이의 개선을 위해 열차제어시스템에 적합한 HAZOP-KR 방법을 제시하였고, 또한 실제 개발하고 있는 시스템에 적용하여 그 적용사례를 제시하였다.

Keywords

References

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