Results 21 to 30 of about 6,999 (231)

Application brushless machines with combine excitation for a hybrid car and an electric car [PDF]

open access: yesProblems of the Regional Energetics, 2015
This article shows advantages of application the brushless machines with combined excitation (excitation from permanent magnets and excitation winding) for the hybrid car and the electric car.
Gandzha S.A., Kiessh I.E.
doaj  

Quality of life satisfaction among converted Kelantan Chinese Muslims [PDF]

open access: yes, 2019
This article investigates the quality of life of the Kelantan Chinese Muslim community before and after conversion to Islam, focusing on their level of satisfaction in term of economic aspect.
Ab. Razak D.   +23 more
core   +1 more source

Comparison of Halbach magnetized brushless machines based on discrete magnet segments or a single ring magnet [PDF]

open access: yes, 2002
This paper compares the air-gap field distribution, cogging torque, back-electromotive-force waveform, and efficiency of brushless machines having a Halbach magnetization produced by either discrete magnet segments or a single ring magnet.
Howe, D., Xia, Z.P., Zhu, Z.Q.
core   +1 more source

Novel Double Mode Dual-Stator Wound Rotor Synchronous Machine for Variable Speed Applications

open access: yesWorld Electric Vehicle Journal, 2023
This paper offers a novel dual-mode double stator wound rotor synchronous machine for variable speed applications. The proposed motor integrates the benefits of both the traditional wound rotor synchronous machine (WRSM) and brushless wound rotor ...
Asif Hussain   +5 more
doaj   +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

Brushless Self-Excited Three-Phase Synchronous Generator without Exciter.

open access: yesIEEJ Transactions on Industry Applications, 1992
This paper describes principles together analytic and experimental studies of an exciterless, brushless, and self-excited three-phase synchronous generator which was devised by authors. As traditonal brushless and DC self-excited three-phase synchronous generators without exciter didn't have the self-exciting function by series characteristic component
Kenji Inoue   +3 more
openaire   +2 more sources

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

Evaluation of the magnetization direction effects on ferrite PM brushless fractional machines [PDF]

open access: yes, 2012
Permanent magnets are frequently adopted in small brushless machines for automotive applications. Normally anisotropic ferrites, but some research on bonded magnets is being carried on.
Ferraris, Luca   +3 more
core   +1 more source

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   +1 more source

Model-Based Field Winding Interturn Fault Detection Method for Brushless Synchronous Machines

open access: yesMachines, 2022
The lack of available measurements makes the detection of electrical faults in the rotating elements of brushless synchronous machines particularly challenging. This paper presents a novel and fast detection method regarding interturn faults at the field
Kumar Mahtani   +3 more
doaj   +1 more source

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