Power System Fault Diagnosis Based on Fault Information System and Forward and Backward Reasoning

2009 ◽  
Author(s):  
Sihua Liu ◽  
Qing Chen ◽  
Tipan Gao
Keyword(s):  
Information System ◽  
Fault Diagnosis ◽  
Power System ◽  
Backward Reasoning ◽  
Fault Information

General Fault Monitoring and Diagnosis Expert System Based on Fault Tree and Multi-Sensor Information

2011 ◽  
Vol 121-126 ◽  
pp. 4481-4485
Author(s):  
Ai Yu Zhang ◽  
Xiao Guang Zhao ◽  
Lei Zhang
Keyword(s):  
Fault Diagnosis ◽  
Expert System ◽  
Expert Knowledge ◽  
Sensor Failure ◽  
Fault Trees ◽  
Intelligent Algorithms ◽  
Monitoring And Diagnosis ◽  
Backward Reasoning ◽  
Fault Monitoring ◽  
Sensor Information

Due to the limited generality of traditional fault diagnosis expert system and its low accuracy of extracting failure symptoms, a general fault monitoring and diagnosis expert system has been built. For different devices, users can build fault trees in an interactive way and then the fault trees will be saved as expert knowledge. A variety of sensors are fixed to monitor the real-time condition of the device and intelligent algorithms such as wavelet transform and neural network are used to assist the extraction of failure symptoms. On the basis of integration of multi-sensor failure symptoms, the fault diagnosis is realized through forward and backward reasoning. The simulation diagnosis experiments of NC device have shown the effectiveness of the proposed method.

Internet/Intranet Based Remote Condition Monitoring and Fault Diagnosis Scheme and System for Steam Turboset

2005 ◽  
Vol 293-294 ◽  
pp. 365-372 ◽  
Author(s):  
Yong Yong He ◽  
Wen Xiu Lu ◽  
Fu Lei Chu
Keyword(s):  
Fault Diagnosis ◽  
Power System ◽  
Electric Power ◽  
Condition Monitoring ◽  
Economic Benefits ◽  
Electric Power System ◽  
The Internet ◽  
Time Data ◽  
On Line ◽  
Line Condition

The steam turboset is the key equipment of the electric power system. Thus, it is very important and necessary to monitor and diagnose the running condition and the faults of the steam turboset for the safe and normal running of the electric power system. In this paper, the Internet/Intranet based remote condition monitoring and fault diagnosis scheme is proposed. The corresponding technique and methods are discussed in detail. And a real application system is developed for the 300MW steam turboset. In this scheme, the system is built on the Internet/Intranet and the Client/Server construction and Web/Server model are adopted. The proposed scheme can guarantee real-time data acquisition and on-line condition analysis simultaneously. And especially, the remote condition monitoring and fault diagnosis can be implemented effectively. The developed system has been installed in a power plant of China. And the plant has obtained great economic benefits from it.

scholarly journals Fault Diagnosis and Trace Method of Power System Based on Big Data Platform

2018 ◽  
Vol 394 (4) ◽  
pp. 042116 ◽  
Author(s):  
Lei Wang ◽  
Lingling Shang ◽  
Mengchao Ma ◽  
Zhiguang Ma
Keyword(s):  
Big Data ◽  
Fault Diagnosis ◽  
Power System ◽  
Data Platform

Data-driven fault diagnosis of satellite power system using fuzzy Bayes risk and SVM

2019 ◽  
Vol 84 ◽  
pp. 1092-1105 ◽  
Author(s):  
Mingliang Suo ◽  
Baolong Zhu ◽  
Ruoming An ◽  
Huimin Sun ◽  
Shengzhong Xu ◽  
...  
Keyword(s):  
Fault Diagnosis ◽  
Power System ◽  
Data Driven ◽  
Bayes Risk

The Software Support Analysis of Information System

2014 ◽  
Vol 644-650 ◽  
pp. 2965-2968
Author(s):  
Hua Wang ◽  
Xian Yu Li ◽  
Xue Ning Wang ◽  
Wei Na Liu
Keyword(s):  
Information System ◽  
Fault Diagnosis ◽  
Integrated Model ◽  
Fast Recovery ◽  
Software Support ◽  
Main Factors ◽  
Software Fault ◽  
System Effectiveness

Based upon the synopsis of software support of information system, this paper puts forward main factors, integrated model and phase tasks of software support of information system, and gives description to software supportability analysis technology, software fault diagnosis technology, software fast recovery technology and software remote support technology so as to increase software support capabilities and information system effectiveness.

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