원전 극한 환경적용을 위한 필드버스 통신망 요건

• 영문명: Fieldbus Communication Network Requirements for Application of Harsh Environments of Nuclear Power Plant
• 발행기관: 한국IT서비스학회
• 저자명: 조재완(Jai Wan Cho) 이준구(Joon-Koo Lee) 허섭(Seop Hur) 구인수(In Soo Koo) 홍석붕(Seok-Boong Hong)
• 간행물 정보: 『한국IT서비스학회지』한국IT서비스학회지 제8권 제2호, 147~156쪽, 전체 10쪽
• 주제분류: 경제경영 > 경영학
• 파일형태: PDF
• 발행일자: 2009.06.30

영문 초록

As the result of the rapid development of IT technology, an on-line diagnostic system using the fieldbus communication network coupled with a smart sensor module will be widely used at the nuclear power plant in the near future. The smart sensor system is very useful for the prompt understanding of abnormal state of the key equipments installed in the nuclear power plant. In this paper, it is assumed that a smart sensor system based on the fieldbus communication network for the surveillance and diagnostics of safety-critical equipments will be installed in the harsh-environment of the nuclear power plant. It means that the key components of fieldbus communication system including microprocessor, FPGA, and ASIC devices, are to be installed in the RPV(reactor pressure vessel) and the RCS(reactor coolant system) area, which is the area of a high dose-rate gamma irradiation fields. Gamma radiation constraints for the DBA(design basis accident) qualification of the RTD sensor installed in the harsh environment of nuclear power plant, are typically on the order of 4kGy/h. In order to use a fieldbus communication network as an ad-hoc diagnostics sensor network in the vicinity of the RCS pump area of the nuclear power plant, the robust survivability of IT-based micro-electronic components in such intense gamma-radiation fields therefore should be verified. An intelligent CCD camera system, which are composed of advanced micro-electronics devices based on IT technology, have been gamma irradiated at the dose rate of about 4.2kGy/h during an hour up to a total dose of 4 kGy. The degradation performance of the gamma irradiated CCD camera system is explained.

키워드

Fieldbus Harsh Environments Design Basis Accident Gamma Radiation Sensor Network