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Beginning with the simple introduction of method and current situation about heavy machine and its fault diagnosis, this paper puts forward the method of fault diagnosis based on mixed expert system, which uses the rules and cases. The architecture and diagnosis flow of the system are both constructed. Then the knowledge base of heavy machine's fault diagnosis and inference engine are mainly set up,...
This paper presents the development of a novel digital relay model and its validation by a digital relay data analysis application. The model is developed as a SIMULINK S-function block. MATLAB file I/O functions are employed to generate an oscillography file and an event report. The expert system based digital relay data analysis application validates the relay model and generates diagnosis information...
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