Results 11 to 20 of about 103,994 (257)

Local and Remote Voltage and Reactive Power Control in the Presence of Induction Generators [PDF]

open access: yesمجله مدل سازی در مهندسی, 2018
Voltage and reactive power control in distribution networks is one of the most basic tasks of a distribution network operator. This is usually controlled by on-load tap-changer (OLTC), substation capacitors, and feeder capacitors.
Behnam Rezaei, Mohammad Taghi Ameli
doaj   +1 more source

Comprehensive Comparative Study on Permanent-Magnet-Assisted Synchronous Reluctance Motors and Other Types of Motor

open access: yesApplied Sciences, 2023
At present, the induction motor (IM), synchronous reluctance motor (SynRM), ferrite-assisted synchronous reluctance motor (ferrite-assisted SynRM) and interior permanent magnet motor (IPM) are research hotspots, but comprehensive comparative research on ...
Guanghui Du   +3 more
doaj   +1 more source

A Novel Mode Un-Mixing Approach in Variational Mode Decomposition for Fault Detection in Wound Rotor Induction Machines

open access: yesEnergies, 2023
Condition monitoring of induction machines (IMs) with the aim of increasing the machine’s lifetime, improving the efficiency and reducing the maintenance cost is necessary and inevitable.
Reza Bazghandi   +3 more
doaj   +1 more source

Steady State Operating Points of the Doubly Fed Cascaded Induction Machine

open access: yesEletrônica de Potência, 2012
Doubly Fed Induction Machines (DFIM) have many industrial applications and are also used as Wind Power generators. The brushes, necessary to supply energy to the rotor, are the main drawback of these machines.
Fellipe. L. Neves   +4 more
doaj   +1 more source

Machine learning and grammar induction [PDF]

open access: yesMachine Learning, 1987
Despite its complexity, the task of natural language processing can be divided into a number of well-defined subtasks, and one of these centers on syntax. This aspect of language has been studied in detail by linguists, and developmental studies have provided a variety of empirical generalizations about the stages that children traverse in their ...
openaire   +2 more sources

Indirect Field Orientation Control of Induction Machine with Detuning Effect [PDF]

open access: yesEngineering and Technology Journal, 2008
Field orientation control (FOC) methods of an induction machine achievedecoupled torque and flux dynamics leading to independent control of torque andflux as for separately excited DC motor, but they are sensitive to motor parametervariations.
Rami A. Mahir, Ziad M. Ahmed, Amjad J. H
doaj   +1 more source

Improved Mathematical Modeling of Six Phase Induction Machines Based on Fractional Calculus

open access: yesIEEE Access, 2021
Multiphase induction machine modelling represents a crucial research topic for both machine control and performance evaluation purposes. Generally, multiphase induction machines are preferably modelled using the vector space decomposition technique with ...
Ahmed M. Shata   +4 more
doaj   +1 more source

Dual-Mode Brushless Wound Rotor Synchronous Machine for High Starting Torque

open access: yesIEEE Access, 2022
This paper proposes a dual-mode brushless wound rotor synchronous machine (DBL-WRSM) for high starting torque. The proposed DBL-WRSM consists of two modes: induction and brushless (BL)-synchronous modes.
Ali Roshanzamir   +5 more
doaj   +1 more source

An Influence of Spatial Harmonics on an Electromagnetic Torque of a Symmetrical Six-Phase Induction Machine

open access: yesEnergies, 2023
The analyses of the influence of spatial harmonics on the electromagnetic torque of the multi-phase induction machine and reducing this influence are important tasks to ensure the high efficiency of the induction machine.
Andriy Kutsyk   +3 more
doaj   +1 more source

Fault Tolerant Control of Induction Motor Drives Subject to Rotor Resistance Adaptation

open access: yesAlgerian Journal of Signals and Systems, 2016
This paper describes the synthesis of a vector fault tolerant control of induction motor drives using an adaptive observer. This observer is used to detect the rotor resistance and flux components using the stator terminal voltages and currents.
N. Boumalha   +3 more
doaj   +1 more source

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