Patent ID: 8903664
Filing Date: 2014-12-02
Classification: G01R,H02H,H04Q

Abstract:
1. A method for use in monitoring a synchronous machine that includes a plurality of winding inter-turn portions, said method comprising: energizing the synchronous machine via a power conversion assembly coupled to the synchronous machine and to an electric power source; recording, by a computing device, at least one first operational measurement of at least one of the power conversion assembly and of the synchronous machine, wherein the at least one first operational measurement is taken at a first instance of a preselected operating condition of the synchronous machine; calculating, by the computing device, a first impedance downstream of the power conversion assembly based on the at least one first operational measurement; recording, by the computing device, at least one second operational measurement of at least one of the power conversion assembly and the synchronous machine, wherein the at least one second operational measurement is taken at a second instance of the preselected operating condition of the synchronous machine; calculating, by the computing device, a second impedance downstream of the power conversion assembly based on the at least one second operational measurement; and estimating, by the computing device, at least one short circuit associated with adjacent winding inter-turn portions based on the first and second operational measurements.