Results 21 to 30 of about 9,537 (235)

Reduction of cogging torque of radial flux permanent magnet brushless DC motor by magnet shifting technique

open access: yesElectrical engineering & Electromechanics, 2022
Introduction. In spite of many advantages of radial flux permanent magnet brushless DC motors it suffers from the distinct disadvantage of high cogging torque. The designer must emphasize to reduce the cogging torque during the design stage.
T. H. Panchal, A. N. Patel, R. M. Patel
doaj   +1 more source

Theoretical analysis of control properties for the brushless doubly fed reluctance machine [PDF]

open access: yes, 2002
Presents the fundamental theory, modelling aspects and operating/control principles of the BDFRM. This emerging machine technology is being regarded by academic and industrial communities as a prospective brushless candidate for wind turbine generators ...
Betz, Robert   +3 more
core   +1 more source

Brushless DC motor speed control strategy of simulation research

open access: yesMATEC Web of Conferences, 2017
In view of the brushless DC motor speed regulation problem, an ideal control strategy is designed. Through the model and analysis of Brushless DC motor, the mathematical model of the brushless DC motor is obtained.
Xiang Wen, Zhen-qiang Li
doaj   +1 more source

Design and Simulation Analysis of Stator Slots for Small Power Permanent Magnet Brushless DC Motors

open access: yesInternational Transactions on Electrical Energy Systems, 2023
With the development of power electronics technology, permanent magnet brushless DC motors have developed rapidly and are now widely used in electric vehicles, flywheel energy storage, rail transit, and other applications.
Chuanhui Zhu   +4 more
doaj   +1 more source

Low speed sensorless control method of brushless DC motor based on pulse high frequency voltage injection

open access: yesAlexandria Engineering Journal, 2022
A low speed sensorless position control method for brushless DC motor based on pulse pulse high frequency voltage injection is proposed according to the characteristic that the brushless DC motor (BLDCM) which is produced at present makes the counter ...
Lihui Sun
doaj   +1 more source

On the possibilities of using a brushless doubly-fed reluctance generator in a 2 MW wind turbine [PDF]

open access: yes, 2008
The paper will put a forward a description of a realistic design for a brushless doubly-fed machine that is of practical value. It takes the form a 4-pole / 8-pole machine aimed for use in a 2 MW wind turbine over a correct speed and torque range ...
Jovanovic, Milutin   +7 more
core   +1 more source

Application of Artificial Bee Colony Algorithm and Finite Element Analysis for Optimum Design of Brushless Permanent Magnet Motor

open access: yesInternational Islamic University Malaysia Engineering Journal, 2012
: This paper develops a mathematical relationship for the purpose of designing and selecting the optimum dimensions of a brushless permanent magnet motor.
Reza Ilka, Seyyed Asghar Gholamian
doaj   +1 more source

Performance of halbach magnetized brushless ac motors [PDF]

open access: yesIEEE Transactions on Magnetics, 2003
In this paper, an anisotropic bonded NdFeB Halbach magnetised ring magnet, which is oriented in powder alignment system during injection moulding and subsequently impulse magnetised, is employed. The features of such a Halbach magnetised machine, in terms of the airgap field distribution, and the back-emf and cogging torque waveforms, etc.
Zhu, Z.Q.   +5 more
openaire   +2 more sources

Torque prediction using the flux-MMF diagram in AC, DC, and reluctance motors [PDF]

open access: yes, 1996
This paper uses the flux-MMF diagram to compare and contrast the torque production mechanism in seven common types of electric motor. The flux-MMF diagram is a generalized version of the flux-linkage versus current (ψ-i) diagram for switched-reluctance ...
Deodhar, R.P.   +3 more
core   +1 more source

Development and Performance Investigation of the Direct Brushless Torque Motor

open access: yesCommunications, 2023
The paper deals with the brushless torque motor, that was designed for precise positioning device to substitute servo drive for high torque and low speed application.
Marek Franko   +4 more
doaj   +1 more source

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