Fuzzy control scheme for dual-acting magnetic bearing actuator system

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Active magnetic bearings are increasingly being utilized in rotating machinery applications as an alternative to the conventional rolling-element and fluid-film bearing types. Magnetic bearing is an open-loop unstable system, and in most practical applications, a PID controller is utilized to ensure stable operation of the rotating machinery. The PID controller, however, becomes ineffective when the machine operates in highly nonlinear regimes. This paper develops a fuzzy logic control scheme to improve the performance of a dual-acting magnetic bearing actuator system operating in nonlinear regimes. The nonlinearity in this system is due to the relationship between the forces generated in the electromagnetic actuator and the coil current and the air gap between the rotor and the stator. The dynamic response of the magnetic bearing actuator system based on the fuzzy logic scheme proposed in this work was found to be much better as compared to the response of the system based on the conventional PD controller. The fuzzy logic control scheme presented in this work may be used for the nonlinear control of systems that operates in nonlinear regimes.

Original languageEnglish
Title of host publication2004 IEEE Conference on Robotics, Automation and Mechatronics
Pages1186-1191
Number of pages6
Publication statusPublished - 2004
Event2004 IEEE Conference on Robotics, Automation and Mechatronics - , Singapore
Duration: 01 Dec 200403 Dec 2004

Other

Other2004 IEEE Conference on Robotics, Automation and Mechatronics
CountrySingapore
Period01/12/0403/12/04

Fingerprint

Magnetic bearings
Fuzzy control
Actuators
Fuzzy logic
Rotating machinery
Controllers
Bearings (structural)
Stators
Dynamic response
Rotors
Fluids
Air

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Habib, M. K., & Inayat Hussain, J. I. (2004). Fuzzy control scheme for dual-acting magnetic bearing actuator system. In 2004 IEEE Conference on Robotics, Automation and Mechatronics (pp. 1186-1191)
Habib, Maki K. ; Inayat Hussain, Jawaid Iqbal. / Fuzzy control scheme for dual-acting magnetic bearing actuator system. 2004 IEEE Conference on Robotics, Automation and Mechatronics. 2004. pp. 1186-1191
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Habib, MK & Inayat Hussain, JI 2004, Fuzzy control scheme for dual-acting magnetic bearing actuator system. in 2004 IEEE Conference on Robotics, Automation and Mechatronics. pp. 1186-1191, 2004 IEEE Conference on Robotics, Automation and Mechatronics, Singapore, 01/12/04.

Fuzzy control scheme for dual-acting magnetic bearing actuator system. / Habib, Maki K.; Inayat Hussain, Jawaid Iqbal.

2004 IEEE Conference on Robotics, Automation and Mechatronics. 2004. p. 1186-1191.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AB - Active magnetic bearings are increasingly being utilized in rotating machinery applications as an alternative to the conventional rolling-element and fluid-film bearing types. Magnetic bearing is an open-loop unstable system, and in most practical applications, a PID controller is utilized to ensure stable operation of the rotating machinery. The PID controller, however, becomes ineffective when the machine operates in highly nonlinear regimes. This paper develops a fuzzy logic control scheme to improve the performance of a dual-acting magnetic bearing actuator system operating in nonlinear regimes. The nonlinearity in this system is due to the relationship between the forces generated in the electromagnetic actuator and the coil current and the air gap between the rotor and the stator. The dynamic response of the magnetic bearing actuator system based on the fuzzy logic scheme proposed in this work was found to be much better as compared to the response of the system based on the conventional PD controller. The fuzzy logic control scheme presented in this work may be used for the nonlinear control of systems that operates in nonlinear regimes.

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Habib MK, Inayat Hussain JI. Fuzzy control scheme for dual-acting magnetic bearing actuator system. In 2004 IEEE Conference on Robotics, Automation and Mechatronics. 2004. p. 1186-1191