A logic based expert system (LBES) for fault diagnosis of power system

Journal Article · Fri Jan 31 23:00:00 EST 1997 · IEEE Transactions on Power Systems

DOI:https://doi.org/10.1109/59.574960· OSTI ID:484922

Park, Y M; Kim, G W; Sohn, J M ^[1]

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1. Seoul National Univ. (Korea, Republic of). Dept. of Electrical Engineering

This paper proposes an expert system for fault diagnosis of power system using a new inference method. Expertise is, in this paper, represented by logical implications and converted into a Boolean function. Unlike conventional rule-based expert systems, the expertise is converted into Prime Implicants (PIs) which are logically complete and sound. Therefore, off-line inference is possible by off-line identification of PIs, which reduces the on-line inference time considerably and makes it possible to utilize the proposed expert system in real-time environment. This paper also presents alarm verification and correction method for relay and circuit breaker (CB) using pre-identified PIs.

• Sponsoring Organization: USDOE
• OSTI ID: 484922
• Report Number(s): CONF-960111--
• Journal Information: IEEE Transactions on Power Systems, Journal Name: IEEE Transactions on Power Systems Journal Issue: 1 Vol. 12; ISSN 0885-8950; ISSN ITPSEG
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
DETECTION
ELECTRICAL FAULTS
EXPERT SYSTEMS
ON-LINE SYSTEMS
POWER SYSTEMS
SYSTEM FAILURE ANALYSIS