Results 11 to 20 of about 3,397 (222)
IEEE Access, 2023 This work addresses the application of the Genetic Algorithm (GA) technique to optimize the commutation angles of a 2 kW 8/6 switched reluctance machine (SRM). The primary goal is to reduce the well-known drawback of SRMs: the torque ripple. Firstly, the
Renata Rezende C. Reis +3 more
doaj +1 more source
Mitigation of Commutation Torque Ripples in Permanent Magnet Brushless DC Motor [PDF]
Universal Journal of Electrical and Electronic Engineering, 2013 In a conventional three phase Brushless DC machine with 120° electrical conduction, Harmonics and commutation torque ripple occurs because of changeover of load current from one phase to another at every 60 electrical degrees. This paper presents techniques for diminishing the harmonics and torque ripples in sensor Brushless DC motor.
M.Arun Noyal Doss +3 more
openaire +1 more source
Improving the torque generation in self-sensing BLDC drives by shaping the current waveform [PDF]
, 2016 Brushless DC drives are widely used in different fields of application because of their high efficiency and power density. Torque ripple can be considered one of the drawbacks of these drives.
Darba, Araz +2 more
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Machines, 2022 Based on the Single-Input Dual-Output (SIDO) Cuk converter, a novel commutation torque ripple suppression strategy is proposed for a brushless DC motor (BLDCM).
Xinmin Li +4 more
doaj +1 more source
Assessment of torque components in brushless permanent-magnet machines through numerical analysis of the electromagnetic field [PDF]
, 2005 For the calculation of torque in brushless (BL) alternating current motors a local method is proposed, based on the Maxwell stress theory and the filtered contributions due to the harmonics of the magnetic vector potential in the motor air gap.
Dellinger, S.J. +4 more
core +1 more source
Energies, 2019 This paper presents a commutation torque ripple suppression strategy for brushless DC motor (BLDCM) in the high-speed region, which considers the back electromotive force (back-EMF) variation during the commutation process. In the paper, the influence of
Xinmin Li +5 more
doaj +1 more source
Design and Development of Low Torque Ripple Variable-Speed Drive System With Six-Phase Switched Reluctance Motors [PDF]
, 2018 Switched reluctance motor (SRM) drives conventionally use current control techniques at low speed and voltage control techniques at high speed. However, these conventional methods usually fail to restrain the torque ripple, which is normally associated ...
Deng, Xu +3 more
core +2 more sources
IEEE Access, 2019 Brushless dc motors (BLDCMs) exhibit relatively large torque ripple due to the current pulsation during the commutation process. In this paper, first, the production mechanism of the commutation torque ripple is analyzed in detail, where the diode ...
Kai Liu, Zhiqiang Zhou, Wei Hua
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Enhanced Torque Control of a PMSM Supplied by a Four-Leg Voltage Source Inverter Using the Third Harmonic [PDF]
, 2008 This paper investigates an electrical drive composed of a four-leg voltage source inverter and a three-phase starconnected surface permanent magnet synchronous machine with concentrated windings. The inverter fourth leg is clamped to the neutral point of
GYSELINCK, Johan +2 more
core +6 more sources
A new sensorless method for switched reluctance motor drives [PDF]
, 1998 This paper describes a new method for indirect sensing of the rotor position in switched reluctance motors (SRMs) using pulse width modulation voltage control.
Gallegos-Lopez, G. +2 more
core +1 more source