Alarm analysis

Alarm analysis

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In this chapter a real-time alarm handling and fault analysis (AHFA) expert system is described , this being seen as more than simply an alarm processor. AHFA is able to perform its diagnoses directly in real-time without recourse either to situation specific heuristics or to model-based 'generate and test'. The key is a novel form of abstraction, also described in this chapter. Also described here is an adaptive form of AHFA based on a learning classifier system (LCS), and this uses a fault simulator to direct the entire fault diagnosis. Unlike a conventional expert system, rules are not programmed into the LCS, although that is quite possible. On the contrary, the LCS is trained by example. The diagnostics are then adapted through genetic algorithms (GAs), which directly operate on the rule strings.This chapter is intended to give an overview of the problem area of alarm analysis for power system transmission, along with a couple of approaches to help tackle the problems using computer-based technology.

Inspec keywords: expert systems; power engineering computing; alarm systems; fault diagnosis; genetic algorithms; power transmission faults

Other keywords: power system transmission; LCS; learning classifier system; AHFA expert system; alarm handling; genetic algorithm; fault diagnosis; computer-based technology; fault analysis; alarm analysis

Subjects: Power transmission, distribution and supply

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