Results 21 to 30 of about 9,887,382 (204)

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

The Effects of Multiple Use and Sterilization on the Accuracy of Readings of Different Types of Torque Controllers

open access: yesBioengineering
Application of the appropriate torque in implant prosthodontics is very important from a clinical perspective. In implant prosthodontics, three basic types of torque wrenches are used.
Piotr Stendera   +1 more
doaj   +1 more source

Design and control of a permanent magnet spherical wheel motor

open access: yesETRI Journal, 2019
We present a permanent magnet–based spherical wheel motor that can be used in omnidirectional mobility applications. The proposed motor consists of a ball‐shaped rotor with a magnetic dipole and a hemispherical shell with circumferential air‐core coils ...
Junbo Park   +4 more
doaj   +1 more source

PERMANENT MAGNET SYNCHRONOUS MOTOR TORQUE RIPPLE REDUCTION USING PREDICTIVE TORQUE CONTROL

open access: yesJournal of Engineering and Sustainable Development, 2023
The control of (PMSM) is the subject of this study and the torque ripple reduction in (PMSM) is the main goal of this work. Torque and flux are controlled using a predictive model and Vector Control.
Saif T. Bahar, Riyadh Ghanem Omar
doaj   +1 more source

A general magnetic-energy-based torque estimator: validation via a permanent-magnet motor drive [PDF]

open access: yes, 2008
This paper describes the use of the current–flux-linkage ($i{-}psi$ ) diagram to validate the performance of a general magnetic-energy-based torque estimator.
McGilp, M.I.   +5 more
core   +1 more source

Improved Direct Torque Control of Induction Motor for Torque Ripple Minimization

open access: yesIEEE Access, 2022
A new direct torque control (DTC) method of an induction motor (IM) which minimizes torque ripple $\left ({T_{ripp} }\right)$ while preserving all the conventional DTC advantages is presented in this paper. Large $T_{ripp}$ and current ripple are the
Tomas Esparza Sola   +3 more
doaj   +1 more source

Sequential Model Predictive Torque Control for Six-Phase Machines Without Weighting Factors

open access: yesIEEE Open Journal of Power Electronics
Model predictive control has become a powerful and versatile control strategy, particularly effective in controlling multiphase machines. One of its key advantages is the ability to address multiple control objectives by incorporating constraints ...
Jorge Rodas   +7 more
doaj   +1 more source

Field weakening control of a PM vehicle drive

open access: yesThe Journal of Engineering, 2019
This paper develops a new field weakening method for an integrated permanent magnet synchronous machine vehicle drive. This method adopts both the DC-link and the rotor speed as a feedback signals to generate the demagnetising current reference.
Yaman Zbede, Judith Apsley
doaj   +1 more source

An Improved Direct Torque Control Topology of a Double Stator Machine Using the Fuzzy Logic Controller

open access: yesIEEE Access, 2021
In this paper, a dual stator induction machine is studied. This nonlinear system is built on the Matlab/Simulink tool to test the efficiency of the direct torque control loop for controlling this complicated system. It makes the speed and torque tracking
Flah Aymen   +5 more
doaj   +1 more source

Impact of the motor magnetic model on direct flux vector control of interior PM motors [PDF]

open access: yes, 2011
The stator-field-oriented, direct-flux vector control has been proven to be effective in terms of linear torque control and model independent performance at limited voltage and current (i.e. in flux weakening) for AC drives of various types.
Radu Bojoi   +7 more
core   +1 more source

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