Research On The Supervisory Informaiton System Based On PI Database

With the innovation of electric power, the supervisory information system (SIS) is designed to improve the management level for the plant's economy as well as security.The paper gives emphasis to two aspects of SIS. One is the development for Real-time Database System, which is the base of SIS. The other is the research for the fault diagnosis system of vibration, which is one of the main functions in SIS.Based on the practical items, the paper describes the conception and scheme of SIS. The main functions and the network arrangement of SIS are designed. And PI database is introduced to use in SIS. Then, with the complement of data gathering, data processing and system maintaining, the real-time database system is implemented. The fault diagnosis system of vibration is developed in the paper. Knowledge representation method of expert system, the rules of affirmation and denial, hierarchy fault diagnosis models are used to implement the fault diagnosis.In the end, the paper gives the following steps in research.