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Method and Device for Compensating Vibrations of an Electrical Machine, and Electrical Machines Comprising One such Device

  • US 20080100156A1
  • Filed: 09/05/2005
  • Published: 05/01/2008
  • Est. Priority Date: 09/03/2004
  • Status: Abandoned Application
First Claim
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1. A compensation method for compensating vibration of an electrical machine comprising a stator and a moving portion, said stator being subjected to magnetic forces generated by alternating electrical excitation leading to deformation thereof, the method comprising the steps of exciting piezoelectric actuators fixed at predetermined action locations on an outside surface of said stator, said piezoelectric actuators being arranged to produce controlled deformation in said stator to counter the deformation induced by the magnetic forces.

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