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AssigneeABB Schweiz AG
InventorsTimo Holopainen, Tommi Ryyppö, Aron Szucs
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The invention relates to the field of electric drive devices and electric machines, such as electric drive motors and electric generators for industrial applications, and more particularly to a method and an arrangement for identification of lateral vibration characteristics of an electric machine. The arrangement for identification of lateral vibration characteristics of an electric machine according to the present invention includes a frequency converter, one or more vibration sensors and an electric machine, wherein said frequency converter is arranged for producing torsional excitation, said torsional excitation effecting lateral vibration in said electric machine; and wherein said one or more vibration sensors include at least one lateral vibration sensor arranged for measuring the lateral vibration from said electric machine as excitation response and for producing lateral vibration data.
A method for identification of lateral vibration characteristics of an electric machine, in which method:
An arrangement for identification of lateral vibration characteristics of an electric machine, said arrangement comprising a frequency converter, one or more vibration sensors and an electric machine,
A frequency converter of an arrangement for identification of lateral vibration characteristics of an electric machine, said arrangement comprising on more vibration sensors and an electric machine,
Dependencies are inferred from the claim text.