Research of Motor Fault Diagnosis by Detecting Dynamic Model Parameters
A diagnosis ellipsoid equation is put forward in order to solve motor fault on-line diagnosis. It is first to estimate the motor dynamic model parameters by the on-line least squares estimation, then to detect the parameters changes in the system model, and last to identify t the parts of the system failure occurred and factors. Through a practical example of the application to diagnose a motor fault, the motor fault can be detected according to the parameter changes of the motor model, and the failure factors can be diagnosed by using the diagnosis equation. It is proved feasible and effective.
J. X. Long "Research of Motor Fault Diagnosis by Detecting Dynamic Model Parameters", Applied Mechanics and Materials, Vols. 44-47, pp. 3716-3720, 2011