Results 1 to 10 of about 56,332 (266)

A Novel and Simple Torque Ripple Minimization Method of Synchronous Reluctance Machine Based on Torque Function Method

open access: yesIEEE Transactions on Industrial Electronics, 2021
Synchronous reluctance machine (SynRM) has been studied widely in order to reduce its high torque ripple and improve its low power factor. This article proposes a torque ripple reduction method for SynRM by defining a novel parameter-torque function.
Hailong Wu   +2 more
exaly   +3 more sources

Tandem control method of two axes with different reduction ratios (Comparison of three methods to equalize the transmission torque for a load)

open access: yesNihon Kikai Gakkai ronbunshu, 2023
Tandem control is the control to drive one load with multiple motors. We compare three tandem control methods to suppress the natural vibration of the system: 1) a common torque method, 2) an average rate feedback method, 3) an individual rate feedback ...
Akihiro MAEKAWA, Takuya IMAEDA
doaj   +1 more source

Torque Control of Interior Permanent Magnet Synchronous Motor Based on Online Parameter Identification Using Sinusoidal Current Injection

open access: yesIEEE Access, 2022
Interior permanent magnet synchronous motor (IPMSM) is applied in automotive drive because of its high efficiency and high power density. The accurate torque control of motor, however, is still subject to further investigation and improvement.
Xiaogang Liu, Yunhe Du
doaj   +1 more source

Improved DITC strategy of switched reluctance motor based on adaptive turn-on angle TSF

open access: yesEnergy Reports, 2022
Aiming at the problem of large torque ripple and low efficiency of traditional direct instantaneous torque control (DITC) of switched reluctance motor (SRM), an improved DITC method based on adaptive turn-on angle torque sharing function (TSF) is ...
Ping Ren   +4 more
doaj   +1 more source

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

Analysis of Torque Ripple of a Spoke-Type Interior Permanent Magnet Machine

open access: yesEnergies, 2020
This paper investigates the theoretical reasons behind the low torque ripple of a fractional-slot concentrated-winding (FSCW) spoke-type interior permanent-magnet (IPM) machine obtained via a genetic algorithm-based optimization. To better understand the
Guoyu Chu   +3 more
doaj   +1 more source

An Improved Direct Predictive Torque Control for Torque Ripple and Copper Loss Reduction in SRM Drive

open access: yesApplied Sciences, 2023
This paper introduces a direct predictive torque control (DPTC) method to minimize the torque ripple and copper loss of the switched reluctance motor (SRM). Generally, there is a problem with torque ripple during the SRM’s commutation.
Linhao Sheng   +5 more
doaj   +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

A Method to Accurately Estimate the Muscular Torques of Human Wearing Exoskeletons by Torque Sensors [PDF]

open access: yesSensors, 2015
In exoskeletal robots, the quantification of the user’s muscular effort is important to recognize the user’s motion intentions and evaluate motor abilities. In this paper, we attempt to estimate users’ muscular efforts accurately using joint torque sensor which contains the measurements of dynamic effect of human body such as the inertial, Coriolis ...
Hwang, Beomsoo, Jeon, Doyoung
openaire   +4 more sources

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

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