Modelling of flexural rotor vibration and time-periodic system dynamics in a two-pole cage induction machine equipped with a self-bearing force actuator

Antti Laiho, Kari Tammi, Ville Vidqvist

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Abstract

In this paper, linear time–periodic system dynamics in rotor vibration of electrical machines is examined. We consider a two-pole cage induction machine equipped with a built–in force actuator for active generation of lateral force on the rotor.

The main contribution of the work is to identify and model the sources of time-periodic system dynamics in the coupled electromechanical actuator-rotor system. Especially, the effect of higher spatial harmonics of the magnetic field on the generated force is considered. In this work, a linear time–periodic model for the actuator-rotor system is derived. The parameters of the analytical model are estimated by using time-stepping finite-element analysis of the machine.
Original languageEnglish
Title of host publicationIFAC WORKSHOPS - Periodic Control Systems PSYCO 2010
PublisherIFAC
Pages110-115
Number of pages6
ISBN (Print)978-3-902661-86-9
DOIs
Publication statusPublished - 2010
MoE publication typeA4 Article in a conference publication
EventPeriodic Control Systems - Antalya, Turkey
Duration: 26 Aug 201028 Aug 2010

Conference

ConferencePeriodic Control Systems
Abbreviated titlePSYCO
CountryTurkey
CityAntalya
Period26/08/201028/08/2010

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