A FAULT ISOLATION ALGORITHM FOR THE CASE OF MULTIPLE FAULTS AND MULTIPLE FAULT TYPES

摘要

Given a number of thresholded residuals, an algorithm for finding the diagnoses, I.e. possible faults, is presented. The algorithm is based on ideas used in diagnosis algorithms from the field of AI. It is capable of handling the case of multiple faults and multiple fault-types per component. The number of multiple faults is exponential in the number of components. To handle this complexity problem, logical formulas are used to efficiently represent diagnoses. The formulas obtained can easily be used to derive the set of all diagnoses or the set of most probable diagnoses.