Results 131 to 140 of about 260 (170)

Suspension Characteristics Measurement of a Bearingless Motor

IEEE Transactions on Magnetics, 2009
Bearingless PM motors which have additional suspension windings have been designed with 3D FEM. To verify satisfactions in practical application, a test machine has been built. In this paper, suspension force is measured with the static forces. Two experimental methods are proposed.
N. Miyamoto, T. Enomoto, M. Amada, J. Asama, A. Chiba, T. Fukao, S. Iwasaki, M. Takemoto   +7 more
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Saturation effects in high acceleration bearingless motors

2008 IEEE International Symposium on Industrial Electronics, 2008
Bearingless motors offer contactless levitation and rotation through a hermitically closed process chamber and satisfy the increasing demand for ultra high purity spin processes in chemical, biochemical and semiconductor industry. Most of these processes require a high acceleration capability for minimal process times and a large air gap in order to ...
P. Karutz, T. Nussbaumer, W. Gruber, J.W. Kolar   +3 more
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Structure Design of Bearingless Permanent Magnet Motor

2017 4th International Conference on Information Science and Control Engineering (ICISCE), 2017
The friction and abrasion of the traditional single degree of freedom motor have an impact on the dynamic response of the system. This paper presents bearingless permanent magnet motor structure based on permanent magnetic bearing radial bearing and axial magnetic bearing, the overall structure of the motor is also introduced in the paper.
Zhu Zhida, Zeng Li, Zhu Zhongjie
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Study on control of bearingless slice motor

2008 7th World Congress on Intelligent Control and Automation, 2008
Based on the principle of producing radial suspension forces, the relationship between radial suspension forces, currents is radial suspension windings and equivalent current of permanent magnet is analyzed and deduced. Bearingless slice motor utilizes the bearingless technology to realize radial suspension and suspensions of the other 3-axis by the ...
null Jianzhao Luo, null Weiliang Yong
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Optimization Design of Bearingless Synchronous Reluctance Motor

IEEE Transactions on Applied Superconductivity, 2018
In order to overcome common drawbacks of the low torque density and power factor for conventional bearingless synchronous reluctance motors (BSynRMs), a novel BSynRM rotor structure with ferrite magnets is designed in this paper. First, the basic structure and operation principle of the BSynRM are introduced, and the mathematical models of torque and ...
Haifei Ding, Huangqiu Zhu, Yizhou Hua
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Design variants of the bearingless segment motor

SPEEDAM 2010, 2010
Bearingless drives and magnetic bearings allow the construction of contactless, wearless and lubrication-free rotating systems. Utilizing a permanent magnet excited rotor disc permits the passive stabilization of three degrees of freedom (tilting and axial deflection) by reluctance forces. Hence, using these bearingless slice motors it becomes possible
W. Gruber, S. Silber, W. Amrhein, T. Nussbaumer   +3 more
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Survey of bearingless motor technologies and applications

2015 IEEE International Conference on Mechatronics and Automation (ICMA), 2015
A bearingless motor is a motor with magnetically integrated bearing function. In the last two decades, extensive work has been done within bearingless motor research and development. This paper gives a comprehensive overview over published literatures regarding different motor types, bearing force and drive torque modelling, control problems and ...
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Analysis of the bearingless AC homopolar motor

2012 XXth International Conference on Electrical Machines, 2012
The bearingless ac homopolar motor has numerous advantages over classical machines for applications such as flywheel energy storage and as a superconducting machine. In this paper, the bearingless ac homopolar motor is analyzed. Inductance matrices, alignment and reluctance torque calculations, suspension winding configurations, and radial suspension ...
Eric Severson, Robert Nilssen, Tore Undeland, Ned Mohan   +3 more
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Levitation forces in bearingless permanent magnet motors

IEEE International Magnetics Conference, 1999
Bearingless motors combine brushless AC-motors with active magnetic bearings by the integration of two separate winding systems (torque and radial levitation force windings with different pole pairs) in one housing. This paper gives an insight into the influences of the motor design on the levitation force and torque generation.
W. Amrhein, S. Silber, K. Nenninger
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The evolution of motor drive technologies. Development of bearingless motors

Proceedings IPEMC 2000. Third International Power Electronics and Motion Control Conference (IEEE Cat. No.00EX435), 2002
Power electronics technologies have brought speed, power and new possibilities to motor drive systems. The ranges of power and speed of AC drives have expanded into the ranges that DC drives could nor reach. Electric machines which have new functions have been developed.
openaire   +1 more source