Patent Document ID: 9255969
Application ID: 13476545
Patent Flag: 1

Claim One:
1. A method, comprising: measuring an operating parameter comprising at least one of a phasor current and phasor voltage of an electrical machine; determining a diagnostic parameter indicative of a fault of the electrical machine based on the measured operating parameter by computing a plurality of present values indicative of the diagnostic parameter, each present value corresponding to a time instant during operation of the electrical machine; selecting a data model for the diagnostic parameter; estimating at least one constant of the data model based on the plurality of present values indicative of the diagnostic parameter; estimating a future value indicative of the diagnostic parameter using the at least one estimated constant of the data model; estimating end of life of the electrical machine when the future value exceeds a pre-determined threshold value; and controlling the operating parameter of the electrical machine based on the estimated end of life.