Design of fault diagnosis expert system based on fault tree and production rules

ObjectiveTo fully utilize the experience of nuclear power plant operation and management to assist nuclear power operators in fault diagnosis, a marine nuclear power plant fault diagnosis expert system is designed. MethodFirst, based on the logical consistency between fault trees and production rule...

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Main Authors: Longfei SONG, Yuqing CHEN, Zhenjun JIN
Format: Article
Language:English
Published: Editorial Office of Chinese Journal of Ship Research 2024-01-01
Series:Zhongguo Jianchuan Yanjiu
Subjects:
Online Access:http://www.ship-research.com/en/article/doi/10.19693/j.issn.1673-3185.03608
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author Longfei SONG
Yuqing CHEN
Zhenjun JIN
author_facet Longfei SONG
Yuqing CHEN
Zhenjun JIN
author_sort Longfei SONG
collection DOAJ
description ObjectiveTo fully utilize the experience of nuclear power plant operation and management to assist nuclear power operators in fault diagnosis, a marine nuclear power plant fault diagnosis expert system is designed. MethodFirst, based on the logical consistency between fault trees and production rules, a method is proposed to transform fault tree knowledge into production rules. The knowledge base and inference machine of the expert system are then optimized by using a mixed forward and backward inference method, and a forward inference strategy is designed to simplify the inference process based on the minimum cut set and importance analysis results of the fault tree. Finally, based on the idea of manually judging the fault status, a status monitoring module is designed to collect key equipment parameters in real time and convert them into equipment information that can be recognized by expert systems. ResultsThe results show that the proposed method solves the problem of difficult knowledge acquisition in expert systems and improves inference efficiency while ensuring inference accuracy, thereby achieving the online fault diagnosis function of expert systems. ConclusionUsing the proposed method can enhance the knowledge acquisition ability and inference efficiency of expert systems, which is of great significance for ensuring the operational management safety of nuclear power plants.
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spelling doaj.art-260ad1faf1774efaa76666a8f722ba1b2024-01-24T09:49:54ZengEditorial Office of Chinese Journal of Ship ResearchZhongguo Jianchuan Yanjiu1673-31852024-01-0119Supp1849210.19693/j.issn.1673-3185.03608ZG3608Design of fault diagnosis expert system based on fault tree and production rulesLongfei SONG0Yuqing CHEN1Zhenjun JIN2College of Nuclear Science and Technology, Naval University of Engineering, Wuhan 430033, ChinaCollege of Nuclear Science and Technology, Naval University of Engineering, Wuhan 430033, ChinaThe 92730 Unit of PLA, Sanya 572000, ChinaObjectiveTo fully utilize the experience of nuclear power plant operation and management to assist nuclear power operators in fault diagnosis, a marine nuclear power plant fault diagnosis expert system is designed. MethodFirst, based on the logical consistency between fault trees and production rules, a method is proposed to transform fault tree knowledge into production rules. The knowledge base and inference machine of the expert system are then optimized by using a mixed forward and backward inference method, and a forward inference strategy is designed to simplify the inference process based on the minimum cut set and importance analysis results of the fault tree. Finally, based on the idea of manually judging the fault status, a status monitoring module is designed to collect key equipment parameters in real time and convert them into equipment information that can be recognized by expert systems. ResultsThe results show that the proposed method solves the problem of difficult knowledge acquisition in expert systems and improves inference efficiency while ensuring inference accuracy, thereby achieving the online fault diagnosis function of expert systems. ConclusionUsing the proposed method can enhance the knowledge acquisition ability and inference efficiency of expert systems, which is of great significance for ensuring the operational management safety of nuclear power plants.http://www.ship-research.com/en/article/doi/10.19693/j.issn.1673-3185.03608nuclear power plantfault treeexpert systemproduction rulefault diagnosis
spellingShingle Longfei SONG
Yuqing CHEN
Zhenjun JIN
Design of fault diagnosis expert system based on fault tree and production rules
Zhongguo Jianchuan Yanjiu
nuclear power plant
fault tree
expert system
production rule
fault diagnosis
title Design of fault diagnosis expert system based on fault tree and production rules
title_full Design of fault diagnosis expert system based on fault tree and production rules
title_fullStr Design of fault diagnosis expert system based on fault tree and production rules
title_full_unstemmed Design of fault diagnosis expert system based on fault tree and production rules
title_short Design of fault diagnosis expert system based on fault tree and production rules
title_sort design of fault diagnosis expert system based on fault tree and production rules
topic nuclear power plant
fault tree
expert system
production rule
fault diagnosis
url http://www.ship-research.com/en/article/doi/10.19693/j.issn.1673-3185.03608
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