Results 11 to 20 of about 488,657 (309)

Influence of machine topology and cross-coupling magnetic saturation on rotor position estimation accuracy in extended back-EMF based sensorless PM brushless AC drives [PDF]

open access: yes, 2007
The influence of the machine topology and dq-axis cross-coupling on the rotor position estimation error in an extended back-EMF based sensorless brushless AC drive is investigated by both finite element analysis and experimentally on four brushless AC ...
Bingham, Chris   +4 more
core   +1 more source

Torque Ripple Reduction in SR Motor Operating without Rotor Position Sensor

open access: yesAdvances in Electrical and Computer Engineering, 2022
Principle of sequential excitation for stator windings of switched reluctance motor (SRM) causes many problems including torque ripples and substantial requirement for rotor position sensing.
ABDELMAKSOUD, H., SHAABAN, S.
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

General modeling of the windings for multi-phase ac machines [PDF]

open access: yes, 2010
This paper, which deals with the winding modeling of ac multi-phase machines with a regular distribution of the stator slots, details an original matrix modeling of the stator winding.
CHARPENTIER, Jean-Frederic   +2 more
core   +5 more sources

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

Electric vehicle battery performance investigation based on real world current harmonics [PDF]

open access: yes, 2020
Electric vehicle (EV) powertrains consist of power electronic components as well as electric machines to manage the energy flow between different powertrain subsystems and to deliver the necessary torque and power requirements at the wheels.
Amamra, Sid-Ali   +4 more
core   +1 more source

Hybrid analytical model for air‐gap magnetic field prediction of surface‐mounted permanent magnet motors with a quasi‐regular polygon rotor

open access: yesIET Electric Power Applications, 2023
In this article, a hybrid analytical model for a quasi‐regular polygon rotor (QPR) is proposed. It mainly uses the subdomain method and conformal mapping to solve a non‐circular boundary in the QPR.
Chuntao Chen   +4 more
doaj   +1 more source

Influence of skew and cross-coupling on flux-weakening performance of permanent-magnet brushless AC machines [PDF]

open access: yes, 2009
A method is proposed for predicting the flux-weakening performance of permanent-magnet (PM) brushless ac machines accounting for skew and d-q axis cross-coupling.
Chen, J.T.   +5 more
core   +1 more source

A back to back multilevel converter for driving low inductance brushless AC machines [PDF]

open access: yes, 2007
Traditionally, multilevel converters are utilised in medium voltage applications, allowing the DC-link voltage to exceed the switch maximum blocking voltage.
Bingham, Chris   +3 more
core   +1 more source

Development of Novel Semi-Stranded Windings for High Speed Electrical Machines Enabled by Additive Manufacturing

open access: yesApplied Sciences, 2023
Recent advances in electrical machines and energy storage technologies make electric vehicles (EVs) feasible replacements to conventional internal combustion engines.
Ahmed Selema   +2 more
doaj   +1 more source

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