This paper describes in detail the design, construction, and testing of an active magnetic bearing (AMB) system for high-speed permanent magnet (PM) brushless DC motor (BLDCM) application. A back-to-back (BTB) test setup which consists of two BLDCMs connected by a high-speed flexible coupling is designed and built: the first one acts as the motor and the other one acts as the generator with resistive load. The dynamic model of the rigid rotor supported by AMBs, and its electromagnetic and feedback control design aspects are also provided. Mechanical design aspects are rotor assembly, radial AMB (RAMB), and thrust AMB (TAMB). Finally, full-loaded test results of the AMBs are given using the BTB experimental test setup that adopts two 100 kW electric machines supported by AMBs.
Issue Section:
Gas Turbines: Structures and Dynamics
References
1.
Schweitzer
, G.
, and Maslen
, E.
, eds., 2009
, Magnetic Bearings: Theory, Design, and Application to Rotating Machinery
, Springer-Verlag
, Berlin
.2.
Morris
, D. G. O.
, 1968
, “Back-to-Back Test for Induction Machines: Floating Gearbox
,” Proc. Inst. Electr. Eng.
, 115
(4
), pp. 536
–537
.10.1049/piee.1968.00973.
Aglen
, O.
, 2003
, “Back-to-Back Tests of a High-Speed Generator
,” IEEE International Electric Machines and Drives Conference
(IEMDC'03
), Madison, WI
, June 1–4, pp. 1084
–1090
.10.1109/IEMDC.2003.12103704.
Zhao
, N.
, Zhu
, Z. Q.
, and Liu
, W.
, 2011
, “Rotor Eddy Current Loss Calculation and Thermal Analysis of Permanent Magnet Motor and Generator
,” IEEE Trans. Magn.
, 47
(10
), pp. 4199
–4202
.10.1109/TMAG.2011.21550425.
Ren
, M.
, Shen
, Y.
, Li
, Z.
, and Nonami
, K.
, 2009
, “Modeling and Control of a Flywheel Energy Storage System Using Active Magnetic Bearing for Vehicle
,” International Conference on Information Engineering and Computer Science
(ICIECS 2009
), Wuhan, China
, Dec. 19–20.10.1109/ICIECS.2009.53649726.
Srinivasan
, S.
, and Cho
, Y. M.
, 1995
, “Modeling and System Identification of Active Magnetic Bearing Systems
,” 4th IEEE Conference on Control Applications
(CCA
), Albany, NY
, Sept. 28–29, pp. 252
–260
.10.1109/CCA.1995.5557117.
Husain
, A. R.
, Ahmad
, M. N.
, and Yatim
, A. H. M.
, 2007
, “Modeling of a Horizontal Active Magnetic Bearing System With Uncertainties in Deterministic Form
,” First Asia International Conference on Modelling & Simulation
(AMS '07
), Phuket, Thailand
, Mar. 27–30, pp. 42
–47
.10.1109/AMS.2007.618.
Matsumura
, F.
, and Yoshimoto
, T.
, 1986
, “System Modeling and Control Design of a Horizontal-Shaft Magnetic-Bearing System
,” IEEE Trans. Magn.
, 22
(3
), pp. 196
–203
.10.1109/TMAG.1986.10642969.
Mukhopadhyay
, S. C.
, Ohji
, T.
, Iwahara
, M.
, and Yamada
, S.
, 2000
, “Modeling and Control of a New Horizontal-Shaft Hybrid-Type Magnetic Bearing
,” IEEE Trans. Ind. Electron.
, 47
(1
), pp. 100
–108
.10.1109/41.82413110.
Namerikawat
, T.
, and Fujitat
, M.
, 1999
, “Uncertain Model and μ-Synthesis of a Magnetic Bearing
,” IEEE International Conference on Control Applications
(CCA
), Kohala Coast, HI
, Aug. 22–27, pp. 558
–563
.10.1109/CCA.1999.80670611.
Smith
, R. D.
, and Weldon
, W. F.
, 1995
, “Nonlinear Control of a Rigid Rotor Magnetic Bearing
,” IEEE Trans. Magn.
, 31
(2
), pp. 973
–980
.10.1109/20.36477112.
Chen
, J.
, Liu
, K.
, and Chen
, X.
, “Modeling and Low Power Control of Active Magnetic Bearings System
,” International Conference on Modelling, Identification and Control
(ICMIC
), Shanghai, China
, June 26–29, pp. 319
–324
.10.1109/ICMIC.2011.597372413.
Toh
, C. S.
, and Chen
, S. L.
, 2013
, “Modeling and Control of Magnetic Flexible Rotor Bearing System
,” IEEE/ASME International Conference on Advanced Intelligent Mechatronics
(AIM
), Wollongong, Australia
, July 9–12, pp. 423
–428
.10.1109/AIM.2013.658412814.
Mushi
, S. E.
, Lin
, Z.
, and Allaire
, P. E.
, 2012
, “Design, Construction, and Modeling of a Flexible Rotor Active Magnetic Bearing Test Rig
,” IEEE/ASME Trans. Mechatronics
, 17
(6
), pp. 1170
–1182
.10.1109/TMECH.2011.216045615.
Hong
, S.-K.
, Langari
, R.
, and Joh
, J.
, 1997
, “Fuzzy Modeling and Control of a Nonlinear Magnetic Bearing System
,” IEEE International Conference on Control Applications
(CCA
), Hartford, CT
, Oct. 5–7, pp. 213
–218
.10.1109/CCA.1997.62754116.
Fang
, J.
, Sun
, J.
, Xu
, Y.
, and Wang
, X.
, 2009
, “A New Structure for Permanent-Magnet-Biased Axial Hybrid Magnetic Bearings
,” IEEE Trans. Magn.
, 45
(12
), pp. 5319
–5325
.10.1109/TMAG.2009.202468717.
Han
, B.
, Zheng
, S.
, and Hu
, X.
, 2013
, “Dynamic Factor Models of a Thrust Magnetic Bearing With Permanent Magnet Bias and Subsidiary Air Gap
,” IEEE Trans. Magn.
, 49
(3
), pp. 1221
–1230
.10.1109/TMAG.2012.222749418.
Liu
, Z.
, Fang
, J.
, and Han
, B.
, 2008
, “Power Reduction for the Permanent Magnet Biased Magnetic Bearing in MSCMG
,” J. Astronaut.
, 29
(3
), pp. 1036
–1041
.19.
Wei
, T.
, and Fang
, J.
, 2005
, “Moving-Gimbal Effect and Angular Rate Feedforward Control in Magnetically Suspended Rotor System of CMG
,” J. Astronaut.
, 26
(1
), pp. 19
–23
.20.
Watkins
, J.
, Lee
, K.
, Hemandez
, C.
, Blumenstock
, K.
, and Schepis
, J.
, 2001
, “Adaptive Auto-Balancing Control of Magnetic Bearings for an Optical Chopper
,” American Control Conference
(ACC
), Arlington, VA
, June 25–27, pp. 1298
–1303
.10.1109/ACC.2001.94590221.
Lum
, K.-Y.
, Coppola
, V. T.
, and Bernstein
, D. S.
, 1996
, “Adaptive Autocentering Control for an Active Magnetic Bearing Supporting a Rotor With Unknown Mass Imbalance
,” IEEE Trans. Control Syst. Technol.
, 4
(5
), pp. 587
–597
.10.1109/87.53192522.
Zhang
, K.
, and Zhang
, X.
, 2010
, “Rotor Dynamic Balance Making Use of Adaptive Unbalance Control of Active Magnetic Bearings
,” International Conference on Intelligent System Design and Engineering Application
(ISDEA
), Wuhan, China
, Oct. 13–14, pp. 347
–350
.10.1109/ISDEA.2010.37723.
Herzog
, R.
, Bühler
, P.
, Gähler
, C.
, and Larsonneur
, R.
, 1996
, “Unbalance Compensation Using Generalized Notch Filters in the Multivariable Feedback of Magnetic Bearings
,” IEEE Trans. Control Syst. Technol.
, 4
(5
), pp. 580
–586
.10.1109/87.53192424.
Han
, B.
, Zheng
, S.
, and Liu
, X.
, 2013
, “Unbalanced Magnetic Pull Effect on Stiffness Models of Active Magnetic Bearing Due to Rotor Eccentricity in Brushless DC Motor Using Finite Element Method
,” Math. Probl. Eng.
, 2013
, p. 745912
.10.1155/2013/74591225.
Fang
, J.
, Wang
, Y.
, Han
, B.
, and Zheng
, S.
, 2013
, “Field Balancing of Magnetically Levitated Rotors Without Trial Weights
,” Sensors
, 13
(12
), pp. 16000
–16022
.10.3390/s131216000Copyright © 2015 by ASME
You do not currently have access to this content.
