Results 61 to 70 of about 268 (177)

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

Design and Analysis of Two Permanent-Magnet-Assisted Bearingless Synchronous Reluctance Motors with Different Rotor Structure

open access: yesEnergies, 2021
The traditional bearingless synchronous reluctance motor (BSynRM) with salient pole rotor has some drawbacks such as high suspension force ripple, low torque density and low power factor.
Yizhou Hua   +3 more
doaj   +1 more source

Modelling method for time‐varying suspension system of axial split‐phase bearingless switched reluctance motor

open access: yesElectronics Letters, Volume 60, Issue 3, February 2024.
This study analyzed the electromagnetic characteristics of the suspension force in the axial split‐phase bearingless switched reluctance motor to characterize the time‐varying suspension system accurately. The study elucidated the hinge relationship between the magnetic flux in the suspension system and the rotor position.
Fuguang Wen, Kai Xie, Yu Zou, Ye Yuan
wiley   +1 more source

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

Fuzzy variable gain robust control of active magnetic bearings rigid rotor system

open access: yesIET Electric Power Applications, Volume 18, Issue 1, Page 90-106, January 2024.
First, the T‐S fuzzy model of four‐degree‐of‐freedom (4‐DOF) AMBs was established based on the 4‐DOF AMBs rigid rotor equivalent coupling model optimised by the μ‐gap metric. Then, the non‐dominated sorting genetic algorithm II (NSGA‐II) was used to find the relative optimal weight function value of H‐infinity robust controller when AMBs system was at ...
Yuhao Xu   +4 more
wiley   +1 more source

Design methodology for a special single winding based bearingless switched reluctance motor

open access: yesThe Journal of Engineering, 2017
Bearingless switched reluctance motors (BSRMs) have both magnetic bearing as well as conventional motor characteristics which make them suitable for diverse industrial applications.
Madhurjya Dev Choudhury   +5 more
doaj   +1 more source

Torque System Modeling and Electromagnetic Coupling Characteristics Analysis of a Midpoint Injection Type Bearingless Permanent Synchronous Magnet Motor

open access: yesInternational Transactions on Electrical Energy Systems, Volume 2024, Issue 1, 2024.
Taking the Midpoint Injection type Bearingless Permanent Magnet Synchronous Motor (MPI‐BL‐PMSM) as an object, to solve its problems of large torque pulsation and insufficient suspension force when adopting Midpoint Suspension Current Unilateral Injection (MPSC‐UI), a Midpoint Suspension Current Bilateral Injection (MPSC‐BI) solution is proposed.
Wenshao Bu, Hang Li, Youcef Belkhier
wiley   +1 more source

Performance optimization design and analysis of bearingless induction motor with different magnetic slot wedges

open access: yesResults in Physics, 2019
This paper investigates the application of using magnetic wedges in a semi-closed slot bearingless induction (BI) motor. In this strategy, the electrical loss of the motor can be reduced, improving the overall efficiency.
Ke Li   +4 more
doaj   +1 more source

Speed-sensorless Vector Control System of Bearingless Induction Motor Based on Reactive Power MRAS of Torque Winding

open access: yes工程科学与技术, 2014
:Aiming at rotor speed identification of bearingless induction motor, a novel speed-sensorless vector control scheme of bearingless induction motor based on reactive power model reference adaptive system (MRAS) of torque winding was proposed.
杨泽斌, 汪明涛, 孙晓东
doaj  

Research on Displacement Sensorless Control for Bearingless Synchronous Reluctance Motor Based on the Whale Optimization Algorithm–Elman Neural Network

open access: yesActuators
The unique structure of bearingless motors requires extra displacement sensors to monitor rotor movement, unlike conventional synchronous motors. However, this requirement inevitably escalates the cost and size of the motor. To address these issues, this
Enxiang Xu, Ruijie Zhao
doaj   +1 more source

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