Resumen de Design of an induction machine with damper windings for noise and vibrations reduction

Gregory Bauw, Bertrand Cassoret, Olivier Ninet, Raphael Romary

• Purpose – The purpose of this paper is to present a design method for induction machines including a threephase damper winding for noise and vibrations reduction.

  Design/methodology/approach – In the first part, the principle of the damper winding is recalled. The second part presents the iterative design method which is applied on a 4-kW pulse width modulation (PWM)-fed induction machine to study the impact of the additional winding on the geometry. In the third part, the finite-element method is used to validate the designed geometry and highlight the harmonic flux density reduction. Finally, some experimental results are given.

  Findings – The study shows that the impact of the additional three-phase winding on the geometry and weight of the machine is low. Moreover, the proposed noise reduction method allows one to reduce the total noise level of a PWM-fed induction machine up to 8.5 dBA.

  Originality/value – The originality of the paper concerns the design and characterization of a three-phase damper winding for a noiseless induction machine. The principle of this proposed noise reduction method is new and has been patented.