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Modeling and control of an unbalanced magnetic rotor-bearing system as a bearingless motor
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Modeling and control of an unbalanced magnetic rotor-bearing system as a bearingless motor
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Journal Article
Modeling and control of an unbalanced magnetic rotor-bearing system as a bearingless motor
2017
Overview
Purpose
This paper is concerned with the design and analysis of a bearingless motor.
Design/methodology/approach
The bearingless motor is obtained by a regular three-pole active magnetic bearing with an intentionally attached unbalanced mass on the rotor. It is the unbalanced mass that will generate the rotational torque for the motor function. Modeling and control of the unbalanced mass-type bearingless motor have been considered.
Findings
It is found through simulations that both functions of motor and magnetic bearing can indeed be achieved in this system.
Originality/value
This novel bearingless motor requires no additional windings and permanent magnets. Thus, it can greatly reduce the cost and design of the bearingless motor.
Publisher
Emerald Publishing Limited,Emerald Group Publishing Limited
