案例推理在汽轮发电机组故障诊断中的应用

The Application of Case based Reasoning in the Failure Diagnosis of Turbogenerat or Units

根据故障诊断的特点 ,提出了规范化的案例组织和表示方法。将案例征兆分为确定性必要征兆和其它征兆 ,提出了基于确定性和模糊加权相结合的案例检索策略 ,并对相似度的计算进行了修正 。

On the basis of the specific features of a failure diagnosis the author has stan dardized the method of organization and representation of cases. The symptoms of a case are divided into essential symptoms of certainty and other symptoms. Bas ed on the certainty and fuzzy weight a retrieval strategy of cases is proposed. Moreover, a correction was performed regarding the calculation of similarity de gree, thereby enhancing the reliability of case based reasoning.