Results 11 to 20 of about 18,623 (223)

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

open access: yesIEEE Transactions on Industry Applications, 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   +3 more sources

Dual-Inverter-Controlled Brushless Operation of Wound Rotor Synchronous Machines Based on an Open-Winding Pattern

open access: yesEnergies, 2020
In an open-winding machine, three-phase stator currents can be controlled such that the input armature currents may contain the third-harmonic current component in addition to the fundamental.
Syed Sabir Hussain Bukhari   +3 more
doaj   +3 more sources

Novel Hybrid Consequent-Pole Brushless Wound Rotor Synchronous Machine for Improving Torque Characteristics

open access: yesIEEE Access, 2022
This article introduces a hybrid consequent-pole brushless wound rotor synchronous machine (CP-BL-WRSM). The CP-BL-WRSM installs permanent magnets (PMs) on the alternative rotor poles.
Ying Yan   +2 more
doaj   +1 more source

Analysis of a Brushless Wound Rotor Synchronous Machine Employing a Stator Harmonic Winding

open access: yesIEEE Access, 2020
This study proposes a new topology for brushless operation of a wound rotor synchronous machine (WRSM) employing a stator harmonic winding. It is based on generating an additional six-pole magneto-motive force component without the use of an inverter. In
Ghulam Jawad Sirewal   +3 more
doaj   +1 more source

High-Efficient Brushless Wound Rotor Synchronous Machine Topology Based on Sub-Harmonic Field-Excitation Technique

open access: yesEnergies, 2021
This paper presents a new high-efficient three-phase brushless wound rotor synchronous machine (BL-WRSM) based on a sub-harmonic field excitation technique. In the proposed machine topology, the stator is equipped with two different three-phase windings:
Syed Sabir Hussain Bukhari   +3 more
doaj   +1 more source

Brushless Operation of Wound-Rotor Synchronous Machine Based on Sub-Harmonic Excitation Technique Using Multi-Pole Stator Windings

open access: yesMathematics, 2023
This paper presents a topology for the brushless operation of a wound-rotor synchronous machine based on the subharmonic excitation technique by using two sets of multi-pole windings on the armature as well as on the rotor.
Muhammad Humza   +3 more
doaj   +1 more source

Performance Analysis of Brushless Wound Rotor Vernier Machine by Utilizing Third Harmonic Field Excitation

open access: yesIEEE Access, 2023
In this paper, a self-excited topology by utilizing third harmonic field excitation is proposed for realizing the brushless operation of the Wound Rotor Vernier Machine (WRVM).
Sheikh Yasir Hammad   +5 more
doaj   +1 more source

Energy Efficiency and Performance Evaluation of an Exterior-Rotor Brushless DC Motor and Drive System across the Full Operating Range

open access: yesActuators, 2023
In recent years, exterior-rotor brushless DC motors have become increasingly popular in robotics applications due to their compact shape and high torque density. However, these motors were originally used for continuous operation in drones.
Tsung-Han Hsieh   +2 more
doaj   +1 more source

Influence of pole-pair combinations on the characteristics of the brushless doubly fed induction generator [PDF]

open access: yes, 2020
The brushless doubly fed induction generator (BDFIG) is an alternative to the doubly fed induction generator (DFIG), widely used in wind turbines which avoids the need for brush gear and slip rings.
Abdi Jalebi, Salman   +4 more
core   +2 more sources

Improved rotor-position estimation by signal injection in brushless AC motors, accounting for cross-coupling magnetic saturation [PDF]

open access: yes, 2009
This paper presents an improved signal-injection- based sensorless-control method for permanent-magnet brushless ac (BLAC) motors, accounting for the influence of cross-coupling magnetic saturation between the d- and q-axes. The d- and q-axis incremental
Bingham, Chris   +4 more
core   +3 more sources

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