کنفرانس بین المللی ماشین و محرکه های الکتریکی

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صفحه اصلی / icemd2024

A Feasibility Study to Apply Frequency Response Analysis in Diagnosis of Power Generators

نویسندگان :

Mohammad Rahimi¹ Behnam Balali² Asghar Akbari Azirani³ Peter Werle⁴

1- Dept. of Electrical Engineering K.N. Toosi University of technology Tehran, Iran 2- Leibniz Universität Hannover, Institute of Electric Power Systems, Division of High Voltage Engineering and Asset Management, Schering- Institute, Hannover, Germany 3- Dept. of Electrical Engineering K.N. Toosi University of technology Tehran, Iran 4- Leibniz Universität Hannover, Institute of Electric Power Systems, Division of High Voltage Engineering and Asset Management, Schering- Institute, Hannover, Germany

کلمات کلیدی :

Frequency Response Analysis،Power Generator،Insulation diagnosis،Modeling Faults

چکیده :

This study models insulation defects and faults in synchronous power generators, specifically hydro generators, using Frequency Response Analysis (FRA). A hydro generator is initially simulated with Ansys Maxwell, followed by the proposal of an equivalent stator winding circuit. The frequency response is evaluated for variations in rotor position and various insulation defects, including small voids, moisture penetration, thermal aging, and overall insulation system degradation. FRA results for insulation faults such as inter-turn short-circuit and ground faults are also investigated, with statistical indicators used to interpret the outcomes.