A rule-based expert system for Steady State Diagnosis of Electrical Distribution Networks

The paper describes an expert system, named DiagRED, for the Electrical Distribution Network Steady State Diagnosis. Following the introduction, the 2^nd section presents the theoretical background regarding the applying of the Model Based Diagnosis (MBD) to the power systems steady state operation. Basic concepts and the MBD models for the discussed case are given. The 3^rd section presents the fuzzy indices for steady state operation diagnosis. Within the 4^th section, the DiagRED structure and its components are presented. Database, knowledge base and user interface are described. The main functors and rules implemented in the Prolog language are given. The 5^th section is focusing on presenting the case study, represented by a real 87 buses distribution network. Finally the conclusions of the paper are presented.