Hopf Bifurcation and Vibration Control for a Thrust Magnetic Bearing with Variable Load Mass

In the working process, the load mass of the thrust magnetic bearing has a significant change. If the load mass changes greatly, the original fixed control parameters cannot ensure that the system is in the optimal stable suspension state, and the performance of the system will become worse or even...

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Main Author:	Lingling Zhang
Format:	Article
Language:	English
Published:	MDPI AG 2018-07-01
Series:	Sensors
Subjects:	thrust magnetic bearing hopf bifurcation vibration control variable mass linear adaptive control
Online Access:	http://www.mdpi.com/1424-8220/18/7/2212

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record_format	Article
spelling	doaj-c77a48fa0196439d988f4c4ba92f458c2020-11-25T02:51:55ZengMDPI AGSensors1424-82202018-07-01187221210.3390/s18072212s18072212Hopf Bifurcation and Vibration Control for a Thrust Magnetic Bearing with Variable Load MassLingling Zhang0Institute of Applied Mathematics and Intelligent Information Processing, Hunan Women’s University, Changsha 410004, ChinaIn the working process, the load mass of the thrust magnetic bearing has a significant change. If the load mass changes greatly, the original fixed control parameters cannot ensure that the system is in the optimal stable suspension state, and the performance of the system will become worse or even self-excited. Firstly, a single freedom degree of the suspension control system model is established, and the critical condition of the system is analyzed when a self-excited oscillation occurs. Then, a linear adaptive control law is proposed for the system with variable parameters, which can tolerate the wide range of load mass. The simulation results show that the adaptive control law can keep the stability of the system when the load mass varies in a large range and avoid the self-excited vibration.http://www.mdpi.com/1424-8220/18/7/2212thrust magnetic bearinghopf bifurcationvibration controlvariable masslinear adaptive control
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Lingling Zhang
spellingShingle	Lingling Zhang Hopf Bifurcation and Vibration Control for a Thrust Magnetic Bearing with Variable Load Mass Sensors thrust magnetic bearing hopf bifurcation vibration control variable mass linear adaptive control
author_facet	Lingling Zhang
author_sort	Lingling Zhang
title	Hopf Bifurcation and Vibration Control for a Thrust Magnetic Bearing with Variable Load Mass
title_short	Hopf Bifurcation and Vibration Control for a Thrust Magnetic Bearing with Variable Load Mass
title_full	Hopf Bifurcation and Vibration Control for a Thrust Magnetic Bearing with Variable Load Mass
title_fullStr	Hopf Bifurcation and Vibration Control for a Thrust Magnetic Bearing with Variable Load Mass
title_full_unstemmed	Hopf Bifurcation and Vibration Control for a Thrust Magnetic Bearing with Variable Load Mass
title_sort	hopf bifurcation and vibration control for a thrust magnetic bearing with variable load mass
publisher	MDPI AG
series	Sensors
issn	1424-8220
publishDate	2018-07-01
description	In the working process, the load mass of the thrust magnetic bearing has a significant change. If the load mass changes greatly, the original fixed control parameters cannot ensure that the system is in the optimal stable suspension state, and the performance of the system will become worse or even self-excited. Firstly, a single freedom degree of the suspension control system model is established, and the critical condition of the system is analyzed when a self-excited oscillation occurs. Then, a linear adaptive control law is proposed for the system with variable parameters, which can tolerate the wide range of load mass. The simulation results show that the adaptive control law can keep the stability of the system when the load mass varies in a large range and avoid the self-excited vibration.
topic	thrust magnetic bearing hopf bifurcation vibration control variable mass linear adaptive control
url	http://www.mdpi.com/1424-8220/18/7/2212
work_keys_str_mv	AT linglingzhang hopfbifurcationandvibrationcontrolforathrustmagneticbearingwithvariableloadmass
_version_	1724732607446384640

Hopf Bifurcation and Vibration Control for a Thrust Magnetic Bearing with Variable Load Mass

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