Aug 16, 2009
Electrical Project on An expert System for Power plant
An intelligent fault diagnosis and operator support system targeting in the safer operation of generators and distribution substations in power plants is introduced in this paper. Based on Expert Systems (ES) technology it incorporates a number of rules for the real time state estimation of the generator electrical part and the distribution substation topology. Within every sampling cycle the estimated state is being compared to an a priori state formed by measurements and digital signaling coming from current and voltage transformers as well as the existing electronic protection equipment. You can also Subscribe to FINAL YEAR PROJECT'S by Email for more such projects and seminar.
Whenever a conflict between the estimated and measured state arises, a set of heuristic rules is activated for the fault scenario inference and report. An included SCADA helps operators in the fast processing of large amounts of data, due to the user-friendly graphical representation of the monitored system.
Enhanced with many heuristic rules, being a knowledge based system, the proposed system goes beyond imitation of expert operators’ knowledge, being able to inference fault scenarios concerning even components like the power electronic circuits of generator excitation system.
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For example, abnormal measurements on generator’s terminals can activate rules that will generate fault hypothesis possibly related to an excitation thyristors abnormal switching operation.
An Expert System (ES) is a computer program that uses knowledge and inference procedures to resolve problems that are ordinarily solved through human expertise.
The main components of an ES are: a) inference engine, b) database, c) user-interface.
ES incorporate rule kind of programming. They are currently being used in many applications in the area of power systems and power electronics. Several systems for the short or long term load forecasting have been already introduced based on ES technology. Intelligent SCADA and offline training systems for non-expert operators is another application where ES are often used.
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