Design and Implementation of a PID Controller for a Radial Magnetic Bearing powered by a Brushless Motor
Article Sidebar
Main Article Content
Abstract
This work describes the implementation of a radial active magnetic bearing, focusing on the control of said device. The system consists of a brushless motor, which spins at 20000 RPM, with a vertical axis that must be centered by the magnetic bearing placed in the upper side. The working principle allows, by means of electrical currents circulating through adequate placed pair of coils, to exert forces that keep the axis in a certain position. To achieve this, the plant dynamic equations are derived and two control loops are proposed: an inner current one and an external position one. The experimental results show that the system behaves in a satisfactory way, keeping the axis in a vertical position, with a maximum gap within the limits specified in the design phase.
Downloads
Article Details
Section
References
M. Puskaric, Z. Car, y N. Bulic, “Magnetic Bearing Control System based on PI and PID Controllers,” Teh. Vjesn. - Tech. Gaz., vol. 25, no. 1, pp. 136-140, feb. 2018, 10.17559/TV-20160726112308.
T. Nussbaumer, P. Karutz, F. Zurcher, y J. W. Kolar, “Magnetically Levitated Slice Motors - An Overview,” IEEE Trans. Ind. Appl ., vol. 47, no. 2, pp. 754-766, March/April 2011, 10.1109/TIA.2010.2102731 .
Weiyu Zhang, Huangqiu Zhu, “Radial magnetic bearings: An overview,” Results in Physics , vol. 7, pp. 3756-3766, August 2017, 10.1016/j.rinp.2017.08.043.
Meeker, D.C.; Maslen, E.H. “Analysis and control of a three pole radial magnetic bearing,” In Proceedings of the Tenth International Symposium on Magnetic Bearings , Martigny, Switzerland, August 2006.
J. Denk, D. Stoiber, H. Kopken and H. Walter, "Industrialization of AMB Systems With Standard Drive Technology," IEEE Transactions on Industry Applications , vol. 49, no. 2, pp. 791-798, March-April 2013, 10.1109/TIA.2013.2242426
A. Chiba, T. Fukao, O. Ichikawa, M. Oshima, M. Takemoto, y D. G. Dorrell, “Magnetic Bearings and Bearingless Drives”. Elsevier Science, 2005.
G. Schweitzer y E. H. Maslen, “Magnetic bearings : theory, design, and application to rotating machinery”. Springer, 2009.
R. RARICK, “Control Of An Active Magnetic Bearing With And Without Position Sensing,” M.S. thesis, Department of Electrical and Computer Engineering, Cleveland State University, Ohio, USA, 2007.
T. E. Seiphetlho, “Power electronic activation for active magnetic bearings,” M.S. thesis, Department of Electrical, Electronic and Computer Engineering, North-West University, Potchefstroom Campus, South Africa, 2006.
Zhu Changsheng and Mao Zhiwei, “A PWM Based Switching Power Amplifier for Active Magnetic Bearings,” in International Conference on Electrical Machines and Systems , Nanjing, China, 2005, pp. 1563-1568, 10.1109/ICEMS.2005.202812
G. Y. Aguirre, L. A. Urbani, M. J. Kelm, D. A. Kelm, M. E. Yasnikowski, “Cojinete Magnéticos empleados en motores de alta velocidad,” 8va Jornadas de Investigación, Desarrollo Tecnológico, Extensión y Vinculación, FI, UNaM, Oberá, Misiones, Agosto 2018, ISSN 2591-4219 http://conferencias.fio.unam.edu.ar/index.php/JIDeTEV/Octava-JIDeTEV/schedCon/presentations