Fuzzy Logic Based Approach for Condition Monitoring of Hydro Generator

Abstract

In this study, a fuzzy logic based criterion for the refurbishment and uprating of hydro generator is presented. The criterion is based on the various factor influencing the performance and condition of hydro generator. A new approach that integrates the generator components attributes and their value range into a fuzzy membership functions to determine the strategy for the rehabilitation of hydro generator. With the formalized expert tool, the combination of various inputs with the respective membership functions with the help of if-then rules give the diagnostic technique. The major components of generators have been used as inputs, each having three membership functions in the proposed methodology and out put is generator condition and action required. The technique to identify the hydro generator condition utilizes stator core, stator winding and rotor as inputs and diagnostic as output. A case study demonstrates the potential of the proposed technique. © Medwell Journals, 2011.