ROBUST CONTROL FOR A SUSPENDED ROTATING SHAFT BY RADIAL ACTIVEMAGNETIC BEARINGS

Gabriele Virzi' Mariotti, Gabriele Barbaraci

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Abstract

This paper shows a comparison based on dynamic behaviour of a rotating shaft when it is suspended by 4-axisactive magnetic bearings under several control systems. The control systems used are μ-synthesis, loop shaping designprocedure and Sub(H∞) robust control with the introduction of uncertainties on position and current gains of the actuators.Each of these controllers is characterized by four input signals and four output signals and the introduction of uncertaintieson displacement gain and current gain is due to torn and worn of the components during the time, which can lead the entiresystem to instability phenomena. The comparison of the performances is obtained through the introduction of same weightingfunction for all three control systems. All simulations and results are performed by MATLab.
Lingua originaleEnglish
pagine (da-a)4-11
Numero di pagine8
RivistaBALKAN JOURNAL OF MECHANICAL TRANSMISSIONS
Volume1
Stato di pubblicazionePublished - 2011

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Bearings (structural)
Robust control
Control systems
Magnetic bearings
Actuators
Controllers

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title = "ROBUST CONTROL FOR A SUSPENDED ROTATING SHAFT BY RADIAL ACTIVEMAGNETIC BEARINGS",
abstract = "This paper shows a comparison based on dynamic behaviour of a rotating shaft when it is suspended by 4-axisactive magnetic bearings under several control systems. The control systems used are μ-synthesis, loop shaping designprocedure and Sub(H∞) robust control with the introduction of uncertainties on position and current gains of the actuators.Each of these controllers is characterized by four input signals and four output signals and the introduction of uncertaintieson displacement gain and current gain is due to torn and worn of the components during the time, which can lead the entiresystem to instability phenomena. The comparison of the performances is obtained through the introduction of same weightingfunction for all three control systems. All simulations and results are performed by MATLab.",
keywords = "Rigid rotor, active magnetic bearing, robust control",
author = "{Virzi' Mariotti}, Gabriele and Gabriele Barbaraci",
year = "2011",
language = "English",
volume = "1",
pages = "4--11",
journal = "BALKAN JOURNAL OF MECHANICAL TRANSMISSIONS",
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AU - Virzi' Mariotti, Gabriele

AU - Barbaraci, Gabriele

PY - 2011

Y1 - 2011

N2 - This paper shows a comparison based on dynamic behaviour of a rotating shaft when it is suspended by 4-axisactive magnetic bearings under several control systems. The control systems used are μ-synthesis, loop shaping designprocedure and Sub(H∞) robust control with the introduction of uncertainties on position and current gains of the actuators.Each of these controllers is characterized by four input signals and four output signals and the introduction of uncertaintieson displacement gain and current gain is due to torn and worn of the components during the time, which can lead the entiresystem to instability phenomena. The comparison of the performances is obtained through the introduction of same weightingfunction for all three control systems. All simulations and results are performed by MATLab.

AB - This paper shows a comparison based on dynamic behaviour of a rotating shaft when it is suspended by 4-axisactive magnetic bearings under several control systems. The control systems used are μ-synthesis, loop shaping designprocedure and Sub(H∞) robust control with the introduction of uncertainties on position and current gains of the actuators.Each of these controllers is characterized by four input signals and four output signals and the introduction of uncertaintieson displacement gain and current gain is due to torn and worn of the components during the time, which can lead the entiresystem to instability phenomena. The comparison of the performances is obtained through the introduction of same weightingfunction for all three control systems. All simulations and results are performed by MATLab.

KW - Rigid rotor

KW - active magnetic bearing

KW - robust control

UR - http://hdl.handle.net/10447/56516

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EP - 11

JO - BALKAN JOURNAL OF MECHANICAL TRANSMISSIONS

JF - BALKAN JOURNAL OF MECHANICAL TRANSMISSIONS

SN - 2069-5497

ER -