| Title |
Power System Fault Diagnosis using Possibility Theory |
| Authors |
이흥재(Lee, Heung-Jae) ; 이철균(Lee, Chul-Kyun) ; 박등용(Park, Deung-Yong) ; 김성희(Kim, Seong-Hee) ; 안복신(Ahn, Bok-Shin) |
| Keywords |
Fault Diagnosis ; Possibility Measure ; Fuzzy Reasoning ; Expert system |
| Abstract |
This paper introduces a fuzzy expert systems for fault diagnosis, where the causal relationships between faults and protective devices are defined as fuzzy relations. The uncertainties existing in the fault diagnosis are figured out using the possibility theory and the possibility measure is associated with the fuzzy relation to evaluate the possibilities of faults. Besides, the knowledge base in the expert system is described and explained. In this way, multiple-fault can be handled easily and simultaneously together with single faults. |