원문정보
초록
영어
Timing information of the alarm signal is rich after the electric power system goes wrong. It will diagnose the fault quickly and accurately if it can be made full use of. The failure alert collected by the dispatch center contains the timing information, thus constitutes the time sequence. In this paper, the concept of time series and Petri net are introduced into the fault analysis of electric power system. An electric power system fault analysis method based on time series Petri net is proposed. First, the concept of time series Petri net and its method are presented. Subsequently, the method is improved and applied to fault diagnosis of electric power system. The time series Petri net model is constructed. The fast correction method is presented, which fully utilizes the time sequence attribute of the circuit breaker action information. The proposed method make use of the timing characteristics of alarm information sequence and still can quickly identify the false alarm in complex situations. Finally, the process of fault analysis is explained.
목차
1. Introduction
2. Mathematical Description of Time Series Petri Net
2.1. Concept of Time Series
2.2. Definition and Operation Rules of the Basic Petri Net
2.3. Definition of the Time Series Petri Net
3. Modeling
3.1. General Model of Protection Configuration in Power System
3.2. Power System Fault Diagnosis Model Based On Time Series Petri Net
4. Fault Diagnosis Process
5. Conclusion
References