Results 11 to 20 of about 645,823 (187)

Computation of the voltage-driven flux-MMF diagram for saturated PM brushless motors [PDF]

open access: yes, 2005
The flux-MMF diagram or "energy conversion loop" is a powerful tool for computing the average torque of saturated permanent-magnet brushless motors, especially when the assumptions underlying classical dq theory are violated, as they often are in modern ...
McGilp, M.I.   +3 more
core   +8 more sources

The electromagnetic performance of brushless permanent magnet DC motors - with particular reference to noise and vibration. [PDF]

open access: yes, 1991
A comprehensive analytical technique is developed for predicting the instantaneous magnetic field distribution in radial-field, surface-mounted permanent magnet brushless DC motors under any load condition and commutation strategy.
Zhu, Zi-Qiang
core   +6 more sources

Experimental High-Frequency Parameter Identification of AC Electrical Motors [PDF]

open access: yes, 2007
In order to predict conducted electromagnetic interference in inverter-motor drive systems, high-frequency (HF) motor models are requested and the involved parameters have to be available.
Boglietti, Aldo   +2 more
core   +1 more source

Unified Direct-Flux Vector Control for AC motor drives [PDF]

open access: yes, 2010
The paper introduces a Unified Direct-Flux Vector Control scheme suitable for sinusoidal AC motor drives. The AC drives considered here are Induction Motor, Synchronous Reluctance and synchronous Permanent Magnet motor drives, including Interior and ...
R. Bojoi   +7 more
core   +1 more source

Cross-Saturation Effects in IPM Motors and Related Impact on Sensorless Control [PDF]

open access: yes, 2006
Permanent-magnet-assisted synchronous reluctance motors are well suited to zero-speed sensorless control because of their inherently salient behavior. However, the cross-saturation effect can lead to large errors on the position estimate, which is based ...
Pastorelli, Michele Angelo   +5 more
core   +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

FIELD ORIENTED CONTROL ( FOC) FOR BLDC MOTOR [PDF]

open access: yesFiabilitate şi Durabilitate, 2021
The advent of DC or AC motors has revolutionized the industry. Over time the engine characteristics have been improved but the existence of brushes is still the major disadvantage.
Florin GROFU
doaj  

Features of operation of ship electrical power systems with electrical propulsion systems

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2022
THE PURPOSE. Consider the issue of the presence of distortions in the form of sinusoidal voltage and current in autonomous electrical power systems with electrical propulsion systems, built on the principle of the unified electric power system.
A. E. Savenko, P. S. Savenko
doaj   +1 more source

Investigation of Motor Current Signature Analysis in Detecting Unbalanced Motor Windings of an Induction Motor with Sensorless Vector Control Drive [PDF]

open access: yes, 2014
Maintaining the efficiency of AC motors in site equipment is important, given the increasing cost of energy. Reduction of motor efficiency from baseline manufacturer data can go undetected until total failure of the equipment is experienced.
Gu, Fengshou   +11 more
core   +1 more source

Line-Start Permanent Magnet Synchronous Motor Supplied with Voltage Containing Negative-Sequence Subharmonics

open access: yesEnergies, 2023
In some power systems, the voltage waveform contains frequency components less than fundamental, called subharmonics or subsynchronous interharmonics. Voltage subharmonics can be both positive- and negative-sequence, independent of their frequency (order)
Piotr Gnaciński   +3 more
doaj   +1 more source

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