Results 61 to 70 of about 50,552 (208)

Performance estimation of interior permanent-magnet brushless motors using the voltage-driven flux-MMF diagram [PDF]

open access: yes, 2006
The flux-magnetomotive force (flux-MMF) diagram, or "energy conversion loop," is a powerful tool for computing the parameters of saturated interior permanent-magnet brushless motors, especially when the assumptions underlying classical dq theory are not ...
Cossar, C.   +3 more
core   +1 more source

Synchronous characteristics of two excited motors in an anti-resonance system

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2019
The aim of this paper is to research the synchronization of two excited motors in an anti-resonance system. After establishing the dynamic equations of the system by Lagrange equation, the displacement responses of the system and the ability of vibration
Yongjun HOU   +5 more
doaj   +1 more source

Magnetic equivalent circuit and finite element modelling of anisotropic rotor axial flux permanent magnet synchronous motors with fractional slot distributed winding

open access: yesIET Electric Power Applications, 2023
Axial flux motors have been in the focus of many research work due to their promising properties when compared to conventional radial flux machines. Axial flux permanent magnet synchronous motors (AFPMSM) studied in the literature were mostly limited to ...
Attila Nyitrai, Miklós Kuczmann
doaj   +1 more source

Turn-to-turn fault protection technique for synchronous machines without additional voltage transformers [PDF]

open access: yes, 2017
This paper presents a novel protection technique for the detection of inter-turn faults in synchronous machines. It is based on the calculation of voltage in the stator windings from the usual phases and neutral voltage, typically available in ...
Gyftakis, Konstantinos N.   +2 more
core   +1 more source

The Design of Control System for Gearless Synchronous Drum-Motor of the Underground Mine Belt Conveyor [PDF]

open access: yesE3S Web of Conferences, 2019
Regarding the current tendency of replacing the geared electric drives with gearless drum motor and substitution of the obsolete induction motors with energy-efficient synchronous motors, the authors consider the difficulties of the high-power permanent ...
Semykina Irina, Tarnetskaya Alexandra
doaj   +1 more source

Analytical and numerical computation of air-gap magnetic fields in brushless motors with surface permanent magnets [PDF]

open access: yes, 2000
This paper extends the theory of the air-gap magnetic field in permanent-magnet (PM) brushless motors. Scalar and vector potential solutions to the field equations are brought together to unify many of the important practical methods already in use.
Davies, J.H.   +4 more
core   +1 more source

Diagnostics of Synchronous Motor Based on Analysis of Acoustic Signals with the use of Line Spectral Frequencies and K-nearest Neighbor Classifier

open access: yesArchives of Acoustics, 2014
In industrial processes electrical motors are serviced after a specific number of hours, even if there is a need for service. This led to the development of early fault diagnostic methods. Paper presents early fault diagnostic method of synchronous motor.
Adam GLOWACZ
doaj   +1 more source

Fault diagnosis of synchronous hydraulic motor based on acoustic signals

open access: yesAdvances in Mechanical Engineering, 2020
Synchronous hydraulic motors are used in high load conditions. Therefore, the failure of such motors must be promptly detected to avoid severe accidents and economic loss.
Jiaoyi Hou   +4 more
doaj   +1 more source

Power optimization for a hydrocarbon industrial plant using a genetic algorithm [PDF]

open access: yes, 2014
In this paper, a genetic algorithm (GA) is considered for optimizing electrical power loss for a real hydrocarbon industrial plant as a single objective problem.
Abido, MA, Al-Hajri, MT, Darwish, MK
core   +1 more source

Optimisation of a Modified SynRM Based on a New Design Strategy Considering Line‐Start Capability and Improved Power Factor

open access: yesIET Electric Power Applications
This paper presents a modified structure of synchronous reluctance motors (SynRMs) combined with a new design strategy in which hybrid optimisation is considered to enhance line start capability and power factor.
Seyed Reza Mousavi‐Aghdam   +2 more
doaj   +1 more source

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