Dedicated Observer-based Approach for Fault Isolation in Wind Turbine System

Abstract

The problem of fault detection and isolation for a T wind turbine benchmark model is addressed in
this paper. A dedicated observer based bank of residuals are generated to detect and isolate different sensor faults in the drive train subsystem of a benchmark system model. The faults considered in this paper are rotor and generator speed sensor faults that include fixed value sensor fault in any one of the two redundant speed measurements and a gain factor fault in one of the generator speed measurement. The proposed design detects the above described