Results 41 to 50 of about 5,555 (274)

A new type of sinusoidal suspension winding Consequent-pole Bearingless Permanent Magnet Synchronous Motor

open access: yesEnergy Reports, 2020
The existence of the harmonic of the suspension magnetomotive force is a key factor affecting the precision of the suspension force of the Consequent-pole Bearingless Permanent Magnet Synchronous Motor, and the coupling of motor’s suspension force in ...
Jie Xu   +3 more
doaj   +1 more source

Optimization Design of Unequal Amplitude Modulated Poles for the Bearingless PMSM

open access: yesEnergies, 2022
The structural parameters of an equal amplitude modulated magnetic pole is limited by the length of the air-gap. When the modulation ratio or carrier ratio is small, the spacing of permanent magnets is too large, which will lead to a worse cogging effect,
Huimin Wang   +3 more
doaj   +1 more source

Bearingless Windmill-type Gas Flowmeter

open access: yesBulletin of JSME, 1981
A bearingless windmill-type gas flowmeter was developed, and its characteristice are described with both theoretical explanation and experimental results. The windmill is mounted on a float, and the float is on liquid in a cup so that the friction against the rotation of the windmill due to friction of the float to liquid is reduced to be negligible at
Masaru DANNO   +3 more
openaire   +3 more sources

Guest editorial: Energy storage in smart grids

open access: yes, 2022
IET Power Electronics, Volume 15, Issue 13, Page 1227-1228, 14 October 2022.
Mattia Ricco   +2 more
wiley   +1 more source

Optimal design of a multi-phase double-stator bearingless brushless direct current motor

open access: yesAdvances in Mechanical Engineering, 2017
To overcome the serious coupling between torque and levitation forces, increase the output torque, and improve fault tolerance performance for the bearingless brushless direct current motor, a multi-phase double-stator bearingless brushless direct ...
Yuemei Qin, Huangqiu Zhu
doaj   +1 more source

Comprehensive analysis of suspending force for improved bearingless switched reluctance motor with permanent magnets in stator yoke

open access: yesCES Transactions on Electrical Machines and Systems, 2018
Different from conventional switched reluctance motor(SRM), bearingless SRM not only provides torque but also supplies levitation force for free-friction of rotor.
Fangxu Li   +3 more
doaj   +1 more source

Comparative performance analysis of bearingless switched reluctance motor

open access: yesAIP Advances, 2021
To solve the magnetic field coupling problem in the traditional bearingless permanent-magnet motor, which has magnets on the rotor, we propose two topologies of bearingless switched reluctance motors (BLSRMs) with magnets on the stator yoke. The first is
YiFei Yang   +3 more
doaj   +1 more source

Speed and Displacement Control System of Bearingless Brushless DC Motor Based on Improved Bacterial Foraging Algorithm

open access: yesMATEC Web of Conferences, 2016
To solve the deficiencies of long optimization time and poor precision existing in conventional bacterial foraging algorithm (BFA) in the process of parameter optimization, an improved bacterial foraging algorithm (IBFA) is proposed and applied to speed ...
Diao Xiaoyan, Zhu Huangqiu, Zhang Duo
doaj   +1 more source

Developments on Bearingless Drive Technology

open access: yesJSME International Journal Series C, 2003
Meanwhile the bearingless motor technology offers a lot of mechanical and electrical design variants for various kinds of applications. A comparison of switched reluctance motor, asynchronous motor and permanent magnet motor technology shows advantages and disadvantages with regard to different technical requirements.
Wolfgang AMRHEIN   +5 more
openaire   +2 more sources

Overview of Bearingless Induction Motors

open access: yesMathematical Problems in Engineering, 2014
Bearingless induction motors combining functions of both torque generation and noncontact magnetic suspension together have attracted more and more attention in the past decades due to their definite advantages of compactness, simple structure, less maintenance, no wear particles, high rotational speed, and so forth.
Xiaodong Sun, Long Chen, Zebin Yang
openaire   +2 more sources

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