Abstract
This paper discusses a closed-loop decentralized control for active magnetic bearings. A cascade connection of PI and PD position controllers is proposed. The control design is based on a simplified linearized model for one axis using a root locus. An excellent agreement is noticeable between simulation and experimental results. It has been shown, that the presented PI/PD control guarantees satisfactory high damping and stiffness of the overall system.
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Larsonneur R (1990) Design and control of active magnetic bearings systems for high speed rotation. PhD Thesis, ETH Zürich
Schweitzer G, Bleuler H, Traxler A (1994) Active magnetic bearings. Vdf Hochschulverlag AG an der ETH Zürich
Meeker DC (1996) Optimal solutions of the inverse problem in quadratic magnetic actuators. PhD Thesis, University of Virginia
Lichuan L (1999) Linearizing magnetic bearing actuators by constant current sum, constant voltage sum, and constant flux sum. IEEE Trans Magn 35:528–535
Chararra A, De Miras J, Caron B (1996) Nonlinear control of a magnetic levitation system without premagnetization. IEEE Trans Control Syst Technol 4:513–523
Panagiotis T, Wilson BC (2003) Zero- and low-bias control design for active magnetic bearings. IEEE Trans Control Syst Technol 11:889–904
Bleuer H, Gähler C, Herzog R, Larsonneur R, Mizuno T, Siegwart R, Woo S-J (1994) Application of digital signal processors for industrial magnetic bearings. IEEE Trans Control Syst Technol 2:278–289
Knospe C (1997) PID control for magnetic bearings. In: Short course on magnetic bearings. Alexandria, Virginia, Lect 7
Polajžer B, Štumberger G, Ritonja J, Težak O, Dolinar D, Hameyer K (2004) Impact of magnetic nonlinearities and cross-coupling effects on properties of radial active magnetic bearings. IEEE Trans Magn 40:798–801
Ahrens M, Kučera L, Larsonneur R (1996) Performance of a magnetically suspended flywheel energy storage device. IEEE Trans Control Syst Technol 4:494–502
Polajžer B (2002) Design and analysis of an active magnetic bearing experimental system (Abridged). PhD Thesis, University of Maribor
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Polajžer, B., Ritonja, J., Štumberger, G. et al. Decentralized PI/PD position control for active magnetic bearings. Electr Eng 89, 53–59 (2006). https://doi.org/10.1007/s00202-005-0315-1
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DOI: https://doi.org/10.1007/s00202-005-0315-1