This paper describes a comparison study of power consumption of power minimizing controllers for active magnetic bearing (AMB) system. AMB system usually used bias currents in order to linearize force-current nonlinear relation. Using linearization with bias currents, AMB system achieves better dynamic performance and system linearity while bias currents always have to be consumed. The ohmic loss caused by them is one of the major energy losses of magnetic bearing systems. There are several researches to reduce constant power consumption by bias current. However, they all claim to reduce the power consumption of AMBs compared to the conventional PD-type controller, no study has been to compare these techniques. In this paper, we studied and implement previous researches with identical system frame for reasonable comparison. For comparison study, we derived simulation models using identical frame work and also built 2 degree-of-freedom (DOF) test bed.
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ASME 2011 International Mechanical Engineering Congress and Exposition
November 11–17, 2011
Denver, Colorado, USA
Conference Sponsors:
- ASME
ISBN:
978-0-7918-5493-8
PROCEEDINGS PAPER
A Comparison Study of Power Minimizing Controllers for Active Magnetic Bearings
Seong-yeol Yoo,
Seong-yeol Yoo
Chungnam National University, Daejeon, South Korea
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Myounggyu Noh
Myounggyu Noh
Chungnam National University, Daejeon, South Korea
Search for other works by this author on:
Seong-yeol Yoo
Chungnam National University, Daejeon, South Korea
Myounggyu Noh
Chungnam National University, Daejeon, South Korea
Paper No:
IMECE2011-63554, pp. 767-773; 7 pages
Published Online:
August 1, 2012
Citation
Yoo, S, & Noh, M. "A Comparison Study of Power Minimizing Controllers for Active Magnetic Bearings." Proceedings of the ASME 2011 International Mechanical Engineering Congress and Exposition. Volume 7: Dynamic Systems and Control; Mechatronics and Intelligent Machines, Parts A and B. Denver, Colorado, USA. November 11–17, 2011. pp. 767-773. ASME. https://doi.org/10.1115/IMECE2011-63554
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