제어로봇시스템학회:학술대회논문집
- 1993.10a
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- Pages.250-255
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- 1993
Process and instrument faults detection based on steam generator model
증기발생기 모델을 이용한 계통 및 계측기 고장검출에 관한 연구
- Kim, Jung-Soo (Korea Atomic Energy Research Institute) ;
- Lyou, Joon (Dept. of Electronics Eng., Chungnam University) ;
- Na, Nan-Ju (Korea Atomic Energy Research Institute) ;
- Kwon, Kee-Choon (Korea Atomic Energy Research Institute)
- Published : 1993.10.01
Abstract
In this paper, for detection and isolation of instrument and process faults related with steam generator(S/G) in nuclear power plant, two types of observers are designed based on the linearized dynamic model of S/G : a bank of Dedicated Observers (DOS) for instrument faults detection and a bank of Unknown Input Observers(UIO) for process faults detection. And then, they are combined to decide which one between the above two faults occurs. In principle, the failure in ith instrument(process) can be isolated by monitoring the error between the ith output and its estimation obtained from the ith DOS(UIO). It is shown via computer simulations that the present scheme is feasible in finding out the source of a fault.
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