Results 141 to 150 of about 268 (177)

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.
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Radial force in a bearingless reluctance motor

IEEE Transactions on Magnetics, 1991
A four-pole reluctance synchronous machine with additional two-pole windings was constructed. The additional winding currents produce the radial force to act as a magnetic bearing. Expressions for the machine inductance functions are given. Inductance functions with respect to the eccentric displacement of the rotor were measured.
A. Chiba, M.A. Rahman, T. Fukao
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Bearingless segment motor with Halbach magnet

SPEEDAM 2010, 2010
Today magnetically levitated rotors are mainly used in applications where wearless operation and high life cycle are of importance (e.g. in the pharmaceutical, biomedical, chemical and semiconductor industry). The bearingless slice motor features a very compact design because three degrees of freedom (one translational and two rotatory) are passively ...
G. Bramerdorfer, G. Jungmayr, W. Amrhein, W. Gruber, E. Marth, M. Reisinger   +5 more
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Design and Modeling of the Bearingless Induction Motor

2019 IEEE International Electric Machines & Drives Conference (IEMDC), 2019
The bearingless version of the induction motor (IM) has seen little consideration as a high performance, medium to high power motor. This paper investigates and develops design and performance evaluation techniques that are necessary to systematically study and design the bearingless IM.
Jiahao Chen, Eric L. Severson
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Introductory Analysis of the Bearingless Induction Motor

Solid State Phenomena, 2009
The design and introductory calculations of a bearingless induction motor is presented in the paper. Advantages of bearingless motors are: the lack of a mechanical contact between the journal and the bush, small additional losses, no need of lubricants, no tear and wear, the shaft is shorter, they have low cost of production due to smaller number of ...
Zdzisław Gosiewski, Krzysztof Falkowski, Marius Zokowski   +2 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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Introduction of Bearingless Motors

Journal of the Japan Society for Precision Engineering, 2023
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Magnetic Bearing and Bearingless Motor

The Journal of the Institute of Electrical Engineers of Japan, 2016
Akira CHIBA, Hiroya SUGIMOTO
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Combined Windings for Bearingless Motors—An Overview

2023 IEEE Energy Conversion Congress and Exposition (ECCE), 2023
Anvar Khamitov, Nathan P. Petersen, Eric L. Severson   +2 more
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High Stiffness Bearingless Motor

2019
At LAI, a micro bearingless motor system is being developed, in collaboration with a Swiss company. The developed motor must support vibrations, axial and tilting loads. Given the millimetric scale of the motor, a proper bearing design is of paramount importance for reliable operation.
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