Results 51 to 60 of about 1,041 (291)

Predictive Torque and Rotor Flux Control of a DFIG-DC System for Torque Ripple Compensation and Loss Minimization [PDF]

open access: yes, 2018
The severe torque ripple normally occurring in the doubly fed induction generator dc (DFIG-dc) system can cause premature failure of mechanical components and shorten the life of the drive train.
Goncalves P. F. C.   +3 more
core   +2 more sources

Development of enhanced direct torque control for surface‐mounted permanent magnet synchronous motor drive operation

open access: yesIET Power Electronics, 2023
Direct torque control (DTC) is one of the most prominent control techniques used by permanent magnet synchronous motor (PMSM) drives in industry applications.
Ravi Eswar Kodumur Meesala   +3 more
doaj   +1 more source

Virtual Subspace-Based DTC Strategy for Torque Ripple Minimization in Six-Phase Induction Motors

open access: yesIEEE Access, 2021
Classical switching-table-based direct torque control (ST-DTC) of six-phase induction machine (6PIM) drives is seriously penalized by current harmonics as well as torque ripples because of uncontrolled voltage vectors in the low-impedance non-energy ...
Mohammad Hosein Holakooie   +1 more
doaj   +1 more source

Projeto e análises de motores síncronos de ímãs permanentes internos com otimização do torque [PDF]

open access: yes, 2008
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Elétrica.O principal objetivo deste trabalho é contribuir com o estudo de motores síncronos de ímãs permanentes internos, de alta
Siguimoto, Celia Miwa
core  

A non-unity torque sharing function for torque ripple minimization of switched reluctance generators

open access: yes, 2013
This paper presents a new torque ripple minimization technique for a Switched Reluctance Generator (SRG). Although the SRG has many advantageous characteristics as a generator, it has not been widely employed in the industry.
Xiao Liu   +5 more
core   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

open access: yesAdvanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas   +6 more
wiley   +1 more source

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

open access: yesAdvanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen   +5 more
wiley   +1 more source

Dual Flattening of Radial Force and Torque Waveforms in Switched Reluctance Motors

open access: yesIEEE Open Journal of Industry Applications
This article presents a novel current-waveform shaping method for simultaneously eliminating radial-force fluctuation and torque ripple in switched reluctance motors.
Fares S. El-Faouri   +6 more
doaj   +1 more source

Resolving the Structural Duality of Graphene Grain Boundaries

open access: yesAdvanced Materials, EarlyView.
Cantilever ncAFM resolves the atomic structure of grain boundaries in graphene, revealing coexisting stable and metastable types. Both contain pentagon/heptagon defects, but metastable GBs show irregular geometries. Modeling shows metastable GBs form under compression, exhibiting vertical corrugation, while stable GBs are flat.
Haojie Guo   +11 more
wiley   +1 more source

Torque Ripple Minimization of Variable Reluctance Motor Using Reinforcement Dual NNs Learning Architecture

open access: yesEnergies, 2023
The torque ripples in a switched reluctance motor (SRM) are minimized via an optimal adaptive dynamic regulator that is presented in this research. A novel reinforcement neural network learning approach based on machine learning is adopted to find the ...
Hamad Alharkan
doaj   +1 more source

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