A4 Conference proceedings

Balancing of a Rotor with Active Magnetic Bearing System: Comparison of One-and Two-Plane Balancing Procedures


Open Access publication

Publication Details
Authors: Vuojolainen Jouni, Jastrzebski Rafal, Pyrhönen Olli
Publication year: 2018
Language: English
Related Journal or Series Information: European Conference On Power Electronics And Applications
Title of parent publication: 2018 20th European Conference on Power Electronics and Applications (EPE'18 ECCE Europe)
Journal acronym: EPE-ECCE Europe
ISBN: 978-1-5386-4145-3
eISBN: 978-9-0758-1528-3
ISSN: 2325-0313
JUFO-Level of this publication: 1
Open Access: Open Access publication
Location of the parallel saved publication: http://urn.fi/URN:NBN:fi-fe2018111247898

Abstract

Rotor balancing is a procedure used to reduce the unbalance vibration of
rotating machinery. Unbalance vibration creates forces to the bearings
and causes harmful effects such as reducing their lifespan. Unbalance is
caused simply because of the difference of the rotors axis of inertia
and the rotating axis. In this paper, two balancing techniques are
presented to reduce the unbalance vibration: one-plane balancing
procedure used for two-plane balancing and a two-plane balancing
procedure. Both balancing procedures take into account the cross effect
between the planes. Rotor levitated with active magnetic bearings is
balanced. Magnetic levitation is unstable so the xy-position of the
rotor is measured on both rotor ends for the control purposes. The
unbalance vibrations are analyzed from these position measurements so no
additional hardware is required for the rotor balancing. Results are
presented from a simulation model of an active magnetic bearing system.
Comparison of the one-plane and two-plane balancing is provided.


Last updated on 2019-13-03 at 12:00