Results 11 to 20 of about 301,273 (301)

Design and Development of Low Torque Ripple Variable-Speed Drive System With Six-Phase Switched Reluctance Motors [PDF]

open access: yes, 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

CONTEMPORARY PLANETARY GEARBOXES AND THEIR CALCULATION [PDF]

open access: yesProceedings on Engineering Sciences
The increased demands for driver comfort and stringent pollution control measures have resulted in a revival of planetary gearboxes for road applications, due to their possibility to change the transmission ratio under load in synchronism with engine ...
Željko Vrcan   +4 more
doaj   +1 more source

Improving the torque generation in self-sensing BLDC drives by shaping the current waveform [PDF]

open access: yes, 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
core   +1 more source

Torque Ripple Suppression of Switched Reluctance Motor with Reference Torque Online Correction

open access: yesMachines, 2023
High torque ripple dramatically affects the switched reluctance motor (SRM) application. To reduce the torque ripple, a reference torque neural network (RTNN) is proposed to adjust the reference torque online.
Benqin Jing   +3 more
doaj   +1 more source

Assessment of torque components in brushless permanent-magnet machines through numerical analysis of the electromagnetic field [PDF]

open access: yes, 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

A Calculation Method for the On-Load Cogging Torque of Permanent Magnet Synchronous Machine

open access: yesIEEE Access, 2019
This paper presents a new method to calculate the cogging torque of the permanent magnet synchronous machine under load condition. Combined with the mathematical expression of the cogging torque, it is found that the cogging torque will be influenced by ...
Weiye Wang   +3 more
doaj   +1 more source

Design of a new dynamic torque generation machine based on the principle of Kibble balance

open access: yesMeasurement: Sensors, 2021
For calibrating torque measuring devices (TMDs) precisely, deadweight torque standard machine (DWTSM) has been developed and used all over the world. The DWTSM involves a technique that has been established as a torque generation method with the highest ...
Misaki Hamaji   +2 more
doaj   +1 more source

An improved method of direct torque control of induction motor

open access: yesGong-kuang zidonghua, 2014
In view of shortcomings of traditional direct torque control method of induction motor that torque and flux linkage have large pulsation and switching frequency is unfixed, the paper put forward an improved direct torque control method with space vector ...
LU Bingjuan, JI Xuande, GE Yunwang
doaj   +1 more source

Predictive Torque Control With Simple Duty-Ratio Regulator of PMSM for Minimizing Torque and Flux Ripples

open access: yesIEEE Access, 2020
In this paper, a new method for reducing the ripples of torque and flux is proposed for the predictive torque control (PTC) of permanent magnet synchronous motors.
Leticia Aseye Adase   +2 more
doaj   +1 more source

Multi-objective Hierarchical Optimization of Interior Permanent Magnet Synchronous Machines Based on Rotor Surface Modification

open access: yesCES Transactions on Electrical Machines and Systems, 2022
To solve the problem of large torque ripple of interior permanent magnet synchronous motor (IPMSM), the rotor surface notch design method was used for V-type IPMSM.
Ran Xu, Wenming Tong
doaj   +1 more source

Home - About - Disclaimer - Privacy