Nonlinear control of an active magnetic bearing with bias currents: experimental study

2006 ◽  
Author(s):  
T.R. Grochmal ◽  
A.F. Lynch
Keyword(s):  
Experimental Study ◽  
Nonlinear Control ◽  
Magnetic Bearing ◽  
Active Magnetic Bearing

Nonlinear control of a 3-pole active magnetic bearing system

Automatica ◽  
2003 ◽  
Vol 39 (2) ◽  
pp. 291-298 ◽  
Author(s):  
Chan-Tang Hsu ◽  
Shyh-Leh Chen
Keyword(s):  
Nonlinear Control ◽  
Magnetic Bearing ◽  
Active Magnetic Bearing ◽  
Bearing System

Experimental study on the novel rolling-sliding integrated auxiliary bearing in active magnetic bearing during rotor drop

2020 ◽  
Vol 136 ◽  
pp. 107044
Author(s):  
Xingnan Liu ◽  
Yan Zhou ◽  
Xunshi Yan ◽  
Jingjing Zhao ◽  
Zhengang Shi ◽  
...  
Keyword(s):  
Experimental Study ◽  
Magnetic Bearing ◽  
Active Magnetic Bearing ◽  
The Novel ◽  
Auxiliary Bearing

Experimental study of active magnetic bearing on a 150M3 turbo oxygen gas expander

1998 ◽  
Vol 2 (4) ◽  
pp. 334-336 ◽  
Author(s):  
Wang Xiping ◽  
Zhang Zhiming ◽  
Yu Liang ◽  
Wan Jingui ◽  
Cui Weidong
Keyword(s):  
Experimental Study ◽  
Magnetic Bearing ◽  
Active Magnetic Bearing ◽  
Oxygen Gas

Low Power Consumption Nonlinear Control with H∞ Compensator for a Zero-Bias Flywheel AMB System

2004 ◽  
Vol 10 (8) ◽  
pp. 1151-1166 ◽  
Author(s):  
S. Sivrioglu ◽  
K. Nonami ◽  
M. Saigo
Keyword(s):  
Power Consumption ◽  
Nonlinear Control ◽  
Digital Signal Processor ◽  
High Speed ◽  
Digital Signal ◽  
Magnetic Bearing ◽  
Active Magnetic Bearing ◽  
Zero Bias ◽  
Control Approach ◽  
Amb System

A nonlinear control approach based on a control current switching rule is studied experimentally for an energy storage flywheel active magnetic bearing (AMB) system. In the proposed control, only one electromagnet in each axis of the AMB has a current flow at any given time, depending on the rotor displacement. This results in a power consumption that is lower than a linear control employing a bias current. The equation of motion for the rigid rotor-AMB system is transformed to have a decentralized structure for the control design. To compute nonlinear control currents, an H ∞ compensator is designed for each axis of the AMB. The proposed approach is experimentally verified using a high-speed digital signal processor.

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