Results 121 to 130 of about 260 (170)
Some of the next articles are maybe not open access.
2007 7th International Conference on Power Electronics and Drive Systems, 2007
Several processes in chemical, pharmaceutical, biotechnology and semiconductor industry require contactless levitation and rotation through a hermetically closed chamber wall. This paper presents a novel concept that combines crucial advantages such as high acceleration capability, large air gap and a compact motor setup.
P. Karutz +3 more
openaire +1 more source
Several processes in chemical, pharmaceutical, biotechnology and semiconductor industry require contactless levitation and rotation through a hermetically closed chamber wall. This paper presents a novel concept that combines crucial advantages such as high acceleration capability, large air gap and a compact motor setup.
P. Karutz +3 more
openaire +1 more source
An analysis of bearingless AC motors
IEEE Transactions on Energy Conversion, 1994Several types of AC bearingless motors are proposed. These bearingless motors have conventional four-pole stator windings and additional two-pole windings, whose currents produce radial forces acting on the rotor. General expressions of the machine inductances and radial forces are derived for the cylindrical rotor and salient-pole motors.
A. Chiba +3 more
openaire +1 more source
A novel bearingless switched reluctance motor
COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, 2012PurposeThis paper seeks to propose a novel bearingless switched reluctance motor (BSRM).Design/methodology/approachThe operating principle and structure characteristics of the proposed three‐phase 12/8‐pole BSRM is analyzed in detail. Finite element method‐based calculations are applied to a prototype and some important characteristics are obtained ...
Xilian Wang +3 more
openaire +1 more source
Design Aspects of Bearingless Slice Motors
IEEE/ASME Transactions on Mechatronics, 2005The complexity of a bearingless motor offers a multitude of freedoms in constructive design because different motor setups may have nearly the same dynamic behavior, and may differ only slightly in some operation characteristic. However, the mechanical setup often has a very strong impact on the power inverter topology and the volt-ampere requirements,
S. Silber +4 more
openaire +1 more source
Bearingless segment motor with Halbach magnet
SPEEDAM 2010, 2010Today 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 +5 more
openaire +1 more source
Optimal Design of the Bearingless Induction Motor
IEEE Transactions on Industry Applications, 2021The bearingless version of the induction motor (IM) has unacceptable performance for high speed or significant power applications. This is due to design challenges that are unique to the bearingless IM, including fundamental topology differences, rotor current induced by the suspension field, and a lack of techniques that can rapidly and accurately ...
Jiahao Chen +4 more
openaire +1 more source
A Novel Parallel Motor Winding Structure for Bearingless Motors
IEEE Transactions on Magnetics, 2013A novel winding structure without separated suspension winding has been proposed for bearingless motors. The proposed winding structure basically has two parallel paths in three-phase motor windings. One three-phase winding path has a neutral point in general, but another three-phase winding path is connected to a suspension inverter, which injects ...
Ryohei Oishi +3 more
openaire +1 more source
Characteristics of a bearingless induction motor
IEEE Transactions on Magnetics, 1991A bearingless induction motor with additional windings in the stator slots is proposed. Additional two-pole windings were wound with the conventional four-pole windings to produce radial magnetic forces. These forces, which control the position of the rotor shaft, are produced when magnetic fluxes from the two-pole windings cause an imbalance in the ...
A. Chiba, D.T. Power, M.A. Rahman
openaire +1 more source
Introductory Analysis of the Bearingless Induction Motor
Solid State Phenomena, 2009The 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 +2 more
openaire +1 more source