FTA를 이용한 볼트 유도가열시스템의 고장 및 전기화재 분석 = Analysis of Failure and Electrical Fire for Bolt Induction Heating System Using FTA

다국어 초록 (Multilingual Abstract)

This paper presents a safety assessment method for FTA-based induction heating systems; the failures and causes of electrical fire are first analyzed for each part and module qualitatively, and methods to manage high probabilities of failure and electrical fire are considered, thereby improving the reliability of the induction heating system. The cumulative importance value (ACC) of the minimal cut set is drawn by setting failure as the top event, and STACK and SMPS are observed to account for about 70% of the induction heating system failures. Thus, intensively managing the basic events contained in the minimal cut set of failures for STACK and SMPS is expected to provide effective and stable operation of the induction heating system. When electrical fire is set as the top event, the STACK percentage is 90%. Accordingly, the current IGBT is changed to a FET to increase the applied voltage and prevent induction heating system failure, and a heat sink plane is installed to prevent FET heating caused by switching, thereby preventing an electrical fire. By classifying the parts and modules of the induction heating system in detail and by applying FTA based on actual failure rates and relevant data, more practical and reasonable results may be expected. Hence, continuous research must be conducted to ensure safety when using induction heating systems.

참고문헌 (Reference)

1 H. K. Lim, "System Safety Engineering" Hansol Academy 93-, 2012

2 S. C. Chen, "Simulations and Verifications of Induction Heating on a Mold Plate" 31 : 971-980, 2004

3 FRONTS, "MADe software"

4 Bolttech, "Induction Systems"

5 Miyaden Co., LTD, "Induction Heating Machine"

6 Reliability Information Anaysis Center, "Failure Mode /Mechanism Distribution"

7 김두현, "FTA를 적용한 태양광 발전 및 ESS 연계형 PCS의 안전성 평가" 한국안전학회 34 (34): 14-20, 2019

8 박영호, "FTA를 이용한 수변전설비의 최소절단집합 도출" 한국안전학회 32 (32): 41-46, 2017

9 K. Park, "Development of Rapid Mold Heating System using Induction Heating" The Korean Society of Mechanical Engineers 11-16, 2006

10 KAERI, "AIMS-PSA Release 2 Reference Manual"