Results 21 to 30 of about 204,612 (306)

Three-phase synchronous hysteresis motor control with separation The variables d and q [PDF]

open access: yesFanāvarī-i āmūzish, 2007
The use of a hysteresis motor in precision systems, such as inertial navigation and video recorders, requires rapid dynamics and precise control of the motor.
Z. Nasiri Gheydari   +3 more
doaj   +3 more sources

Copper loss analysis and loss separation method in a dynamic process of ultra‐high speed motor with slotless stator

open access: yesIET Electric Power Applications, 2023
Different from the copper loss of general permanent magnet (PM) motors, the copper loss of ultra‐high‐speed permanent magnet motors (UHSPMSM) includes DC losses and eddy current losses, which lead to difficulty in analysis.
Qixing Gao   +3 more
doaj   +1 more source

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

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

Sensorless flux-weakening control of permanent-magnet brushless machines using third harmonic back EMF [PDF]

open access: yes, 2004
The sensorless control of brushless machines by detecting the third harmonic back electromotive force is a relatively simple and potentially low-cost technique.
Howe, D., Shen, J.X., Zhu, Z.Q.
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  

An Integral Battery Charger with Power Factor Correction for Electric Scooter [PDF]

open access: yes, 2009
This paper presents an integral battery charger for an electric scooter with high voltage batteries and interior-permanent-magnet motor traction drive.
Armando, Eric Giacomo   +2 more
core   +2 more sources

Investigation of Flux-Linkage Profile Measurement Methods for Switched-Reluctance Motors and Permanent-Magnet Motors [PDF]

open access: yes, 2009
Udgivelsesdato: SEPKnowledge of actual flux linkage versus current profiles plays an important role in design verification and performance prediction for switched reluctance motors (SRM's) and permanent magnet motors (PMM's). Various measurement methods
Lu, Kaiyuan   +2 more
core   +2 more sources

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

open access: yes, 2015
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.
Ashari, Djoni   +3 more
core   +1 more source

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

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