Method, an Arrangement and a Frequency Converter for Identification of Torsional Natural Frequencies of a Drivetrain System
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United States of America Patent
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Issued Date -
Jan 19, 2023
app pub date -
Jul 15, 2022
filing date -
Jul 15, 2022
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Abstract
A field of electric drive devices, drivetrain systems and electric machines, such as electric motors and electric generators for industrial applications, and more particularly to a method, an arrangement, and a frequency converter for identification of torsional natural frequencies of a drivetrain system. In the arrangement for identification of torsional natural frequencies of a drivetrain system according to the present invention, the drivetrain system includes a frequency converter, an electric machine controlled by the frequency converter, and a driven/driving machine system connected to the electric machine, wherein the frequency converter is arranged for controlling the electric machine for producing mechanical excitation by the electric machine in the drivetrain system, the excitation effecting an excitation response in the drivetrain system; and wherein the frequency converter or a data analysis system of the arrangement is arranged for identifying torsional natural frequencies of the drivetrain system utilizing the excitation response.
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