Results 31 to 40 of about 1,557 (221)

Comparative Evaluation of High-Speed Bearingless Cross-Flow Fan Designs for Lithography Excimer Lasers

open access: yesMachines, 2023
This study conducted a comparative evaluation of two bearingless cross-flow fan designs for applications in deep ultraviolet lithography excimer lasers, where maximizing the speed and power of the fan has a direct influence on the throughput and scanning
Ivana Bagaric   +4 more
doaj   +1 more source

Research on rotor unbalance magnetic pull compensation method based on modular winding d‐axis current injection

open access: yesIET Electric Power Applications, Volume 16, Issue 3, Page 328-349, March 2022., 2022
Abstract Due to the dual air‐gap topology of the direct‐drive permanent magnet motor with inner enhance force (IEF‐DDPMM), the radial EM exciting force generated in the inner and outer air gaps when the rotor is eccentric will act on the same rotor, and the unbalanced magnetic pull (UMP) on the rotor will reduce the fatigue life of the rotor structure ...
Jiaxu Zhang, Bingyi Zhang, Guihong Feng
wiley   +1 more source

Global Sliding-Mode Suspension Control of Bearingless Switched Reluctance Motor under Eccentric Faults to Increase Reliability of Motor

open access: yesEnergies, 2020
Bearingless motor development is a substitute for magnetic bearing motors owing to several benefits, such as nominal repairs, compactness, lower cost, and no need for high-power amplifiers. Compared to conventional motors, rotor levitation and its steady
Pulivarthi Nageswara Rao   +3 more
doaj   +1 more source

A Comparison Track of Bearingless Double U-core Switched Reluctance Machine Considering 3 & 4 Double U-cores [PDF]

open access: yes, 2023
This study has explored the pattern of even and odd stator coils in bearingless double u-core switched reluctance machine (bearingless double u-core SRM) and examined their effects in the bearingless control strategy.
Shakibapour, F.   +2 more
core   +1 more source

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

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

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