Performance and Dynamic Properties of an Active Axial Bearing

Martin Panholzer; Gerald Jungmayr; Edmund Marth

Performance and Dynamic Properties of an Active Axial Bearing

Martin Panholzer
, Gerald Jungmayr
, Edmund Marth

Institute of Electrical Drives and Power Electronics

Research output: Chapter in Book/Report/Conference proceeding › Conference proceedings › peer-review

Abstract

In magnetically levitated systems at least one degree of freedom has to be actively stabilized. This is usually achieved with a linear magnetic actuator. If not prevented by e.g. lamination, eddy currents take place in the field conducting iron. These eddy currents have a strong effect on the field distribution in the iron and further reduce the force per current at higher frequencies. In this paper investigate the dynamic properties of a non laminated actuator biased with a permanent magnet in the rotor is anlaysed. It is shown that the voltage to force transfer function is practically unaffected by eddy currents.

Original language	English
Title of host publication	ISMB 2012, The 13th International Symposium on Magnetic Bearings
Number of pages	8
Publication status	Published - 2012

Fields of science

202009 Electrical drive engineering
202011 Electrical machines
202034 Control engineering
202021 Industrial electronics
202027 Mechatronics

JKU Focus areas

Mechatronics and Information Processing

Cite this

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title = "Performance and Dynamic Properties of an Active Axial Bearing",

abstract = "In magnetically levitated systems at least one degree of freedom has to be actively stabilized. This is usually achieved with a linear magnetic actuator. If not prevented by e.g. lamination, eddy currents take place in the field conducting iron. These eddy currents have a strong effect on the field distribution in the iron and further reduce the force per current at higher frequencies. In this paper investigate the dynamic properties of a non laminated actuator biased with a permanent magnet in the rotor is anlaysed. It is shown that the voltage to force transfer function is practically unaffected by eddy currents.",

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AU - Panholzer, Martin

AU - Jungmayr, Gerald

AU - Marth, Edmund

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N2 - In magnetically levitated systems at least one degree of freedom has to be actively stabilized. This is usually achieved with a linear magnetic actuator. If not prevented by e.g. lamination, eddy currents take place in the field conducting iron. These eddy currents have a strong effect on the field distribution in the iron and further reduce the force per current at higher frequencies. In this paper investigate the dynamic properties of a non laminated actuator biased with a permanent magnet in the rotor is anlaysed. It is shown that the voltage to force transfer function is practically unaffected by eddy currents.

AB - In magnetically levitated systems at least one degree of freedom has to be actively stabilized. This is usually achieved with a linear magnetic actuator. If not prevented by e.g. lamination, eddy currents take place in the field conducting iron. These eddy currents have a strong effect on the field distribution in the iron and further reduce the force per current at higher frequencies. In this paper investigate the dynamic properties of a non laminated actuator biased with a permanent magnet in the rotor is anlaysed. It is shown that the voltage to force transfer function is practically unaffected by eddy currents.

M3 - Conference proceedings

BT - ISMB 2012, The 13th International Symposium on Magnetic Bearings

ER -