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A Quantitative Reliability Analysis of FPGA-based Controller for applying to Nuclear Instrumentation and Control System

원전적용을 위한 FPGA 기반 제어기의 정량적 신뢰도 평가

  • Received : 2014.09.01
  • Accepted : 2014.10.17
  • Published : 2014.10.31

Abstract

Nuclear industries have faced unfavorable circumstances such as an obsolescence of the instrumentation and control system, and therefore nuclear society is striving to resolve this trouble fundamentally. FPGAs are currently highlighted as an alternative means for obsolete control systems. Because of the obsolescence-unaffected characteristics, FPGA should be highly reliable in order to be a replacement for PLC (Programmable Logic Controller). Therefore, it is necessary to establish a software development aspect strategy that enhances the reliability of an FPGA-based controller. The reliability analysis including the MTBF (Mean Time Between Failures) is carried out based on the MIL-HDBK-217F. MTBFs are compared with the FPGA-based controller COMMON-Q PLC. As an analysis result, it shows that the reliability of the FPGA-based controller is better than or equal to that of PLC.

Acknowledgement

Grant : SMART 안전성향상을 위한 MMIS 연구

Supported by : 한국연구재단

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