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: Contribution to conferenceConference articleScientific

6 Citations (Scopus)

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
Publication statusPublished - 2010
MoE publication typeNot Eligible
EventIFAC WORKSHOPS - Periodic Control Systems PSYCO 2010 - Antalya, Turkey
Duration: 26 Aug 201028 Aug 2010

Conference

ConferenceIFAC WORKSHOPS - Periodic Control Systems PSYCO 2010
Abbreviated titlePSYCO 2010
CountryTurkey
CityAntalya
Period26/08/1028/08/10

Fingerprint

Bearings (structural)
Time varying systems
Poles
Actuators
Rotors
Electromechanical actuators
Analytical models
Magnetic fields
Finite element method

Keywords

  • Time-periodic system
  • electrical machine
  • self-bearing machine
  • force actuator
  • active control
  • vibration

Cite this

Laiho, A., Tammi, K., & Vidqvist, V. (2010). Modelling of flexural rotor vibration and time-periodic system dynamics in a two-pole cage induction machine equipped with a self-bearing force actuator. Paper presented at IFAC WORKSHOPS - Periodic Control Systems PSYCO 2010, Antalya, Turkey.
Laiho, Antti ; Tammi, Kari ; Vidqvist, Ville. / Modelling of flexural rotor vibration and time-periodic system dynamics in a two-pole cage induction machine equipped with a self-bearing force actuator. Paper presented at IFAC WORKSHOPS - Periodic Control Systems PSYCO 2010, Antalya, Turkey.
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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.",
keywords = "Time-periodic system, electrical machine, self-bearing machine, force actuator, active control, vibration",
author = "Antti Laiho and Kari Tammi and Ville Vidqvist",
note = "Project code: 26153-1.1 ; IFAC WORKSHOPS - Periodic Control Systems PSYCO 2010, PSYCO 2010 ; Conference date: 26-08-2010 Through 28-08-2010",
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Laiho, A, Tammi, K & Vidqvist, V 2010, 'Modelling of flexural rotor vibration and time-periodic system dynamics in a two-pole cage induction machine equipped with a self-bearing force actuator' Paper presented at IFAC WORKSHOPS - Periodic Control Systems PSYCO 2010, Antalya, Turkey, 26/08/10 - 28/08/10, .

Modelling of flexural rotor vibration and time-periodic system dynamics in a two-pole cage induction machine equipped with a self-bearing force actuator. / Laiho, Antti; Tammi, Kari; Vidqvist, Ville.

2010. Paper presented at IFAC WORKSHOPS - Periodic Control Systems PSYCO 2010, Antalya, Turkey.

Research output: Contribution to conferenceConference articleScientific

TY - CONF

T1 - Modelling of flexural rotor vibration and time-periodic system dynamics in a two-pole cage induction machine equipped with a self-bearing force actuator

AU - Laiho, Antti

AU - Tammi, Kari

AU - Vidqvist, Ville

N1 - Project code: 26153-1.1

PY - 2010

Y1 - 2010

N2 - 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.

AB - 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.

KW - Time-periodic system

KW - electrical machine

KW - self-bearing machine

KW - force actuator

KW - active control

KW - vibration

M3 - Conference article

ER -

Laiho A, Tammi K, Vidqvist V. Modelling of flexural rotor vibration and time-periodic system dynamics in a two-pole cage induction machine equipped with a self-bearing force actuator. 2010. Paper presented at IFAC WORKSHOPS - Periodic Control Systems PSYCO 2010, Antalya, Turkey.