Results 21 to 30 of about 484 (203)

Torque ripple reduction of a direct-drive permanent-magnet synchronous machine by material-efficient axial pole pairing [PDF]

open access: yes, 2011
This paper investigates a material-efficient axial pole pairing method for torque ripple reduction in a direct-drive outer-rotor surface-mounted permanent-magnet synchronous machine.
Patrick Chi-Kwong Luk   +3 more
core   +1 more source

Modeling of ZSI based BLDCM For Reduction of Commutation Torque Ripple

open access: yesHELIX, 2020
This paper proposes a new technology, which reduces ripple context in Brush less DC Motor. This technology is having the similar modulation modes in conduction period and commutation period. In Grid applications, Brush less DC motor produces a torque ripple, hence for the reduction of ripple content, a ZSI based BLDCM is proposed in this technology ...
Manohar P, Sreenivasan G., Manikanta P
openaire   +2 more sources

A Novel Region-Refinement Pulse Width Modulation Method for Torque Ripple Reduction of Brushless DC Motors

open access: yesIEEE 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
doaj   +1 more source

Commutation Torque-ripple Minimization for Brushless DC Motor Based on Quasi-Z-Source Inverter [PDF]

open access: yes, 2018
Conventional brushless DC Motor (BLDCM) drive involves a voltage-source inverter with six-step squarewave control, which can be widely used in automated industrial applications.
Liu, Yujing,   +5 more
core   +1 more source

Control System for a Single-Phase DC-Excited Flux-Switching Machine With a Torque Ripple Reduction Scheme

open access: yesIEEE Access, 2020
Single-phase dc-excited flux-switching machines (DCFSMs) are suitable for operations in harsh environments and cost-sensitive applications due to their rugged structure.
Zih-Cing You, Sheng-Ming Yang
doaj   +1 more source

Improved startup control of aero doubly salient electromagnetic starter generator based on optimised currents distribution with advanced angle commutation

open access: yesIET Electric Power Applications, 2023
Doubly salient electromagnetic machine (DSEM) can constitute a competitive rugged starter generator (SG) system. But under the traditional startup control method, the field current is set to the rated value regardless of speed or load torque conditions ...
Xingwei Zhou   +4 more
doaj   +1 more source

Design Modification in Single-Tooth Winding Double-Stator Switched Reluctance Motor for Torque Ripple Mitigation

open access: yesIEEE Access, 2021
Double-stator switched reluctance motors (DSSRMs) with single-tooth winding topology possesses high torque density when compared to conventional switched reluctance motors (SRMs).
Tripurari Das Gupta   +5 more
doaj   +1 more source

Torque prediction using the flux-MMF diagram in AC, DC, and reluctance motors [PDF]

open access: yes, 1996
This paper uses the flux-MMF diagram to compare and contrast the torque production mechanism in seven common types of electric motor. The flux-MMF diagram is a generalized version of the flux-linkage versus current (ψ-i) diagram for switched-reluctance ...
Deodhar, R.P.   +3 more
core   +1 more source

Research on torque ripple suppression of brushless DC motor based on PWM modulation [PDF]

open access: yesArchives of Electrical Engineering, 2019
Brushless DC motors are often used as the power sources for modern ship electric propulsion systems. Due to the electromagnetic torque ripple of the motor, the traditional control method reduces the drive performance of the motor under load changes ...
Zhang Daode   +4 more
doaj   +1 more source

Commutation Torque Ripple Reduction for Brushless DC Motor Based on an Auxiliary Step-Up Circuit

open access: yesIEEE Access, 2019
There exists torque ripple in the commutation process of brushless DC motor (BLDCM), which seriously restricts its application in the high-performance field.
Xuliang Yao   +4 more
doaj   +1 more source

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