EXPERT SYSTEM FOR POWER RECTIFIERS DIAGNOSIS
Journal Title: ANALELE UNIVERSITATII DIN CRAIOVA - Seria Inginerie electrica - Year 2010, Vol 34, Issue 34
Abstract
In designing of the static power converters, the experience of an expert is absolutely necessary in order to obtain a competitive solution. The evolution of the CAD methods has brought in the last time expert systems which contain artificial intelligence modules. This paper deals with an expert system dedicated to the diagnosis of an uncontrolled bridge rectifier. This system dedicated to the functional testing and diagnosis of bridge rectifiers was developed based on the effects noticed during the operation, respectively anomalous behaviors and the faults which determine these. The expert system was developed by using the CLIPS 6.0 language (C Language Integrated Production System). The inference mechanism was developed by using the faults tree method applied to the bridge rectifier. The corresponding database is comprehensive and takes into account the most frequent faults specific to the power semiconductor devices. The paper presents at the end the results and the conclusions which follow the execution of the expert system algorithm. The diagnosis system of the bridge rectifier analyses and identifies the causes of the faults which occur during the operation and reduces the displayed results if two sets of values of the sources which determine the same answer, differ by a single input.
Authors and Affiliations
Virginia IVANOV, Maria BROJBOIU, Sergiu IVANOV
Keywords
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