Results 61 to 70 of about 182,163 (309)
Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys
Advanced Engineering Materials, EarlyView.This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa +9 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich +3 more
wiley +1 more source
International Journal of Advanced Robotic Systems, 2019 Considering the difficulty in setting and observing the flux linkage in the existing direct torque control for the brushless direct current motor, which is the cumbersome torque calculation method in direct torque control systems without flux linkage ...
Shi Peicheng +3 more
doaj +1 more source
A 2MW direct drive wind turbine; vector control and direct torque control techniques comparison
Journal of Energy in Southern Africa, 2017 This paper presents a comparative study on the most popular control strategies used to control high power, Direct Drive Wind Turbines. The studied wind turbine is equipped with a supervision scheme in order to fulfil Grid connection requirements (GCR ...
Mehdi Allagui +2 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana +2 more
wiley +1 more source
Direct Flux Field Oriented Control of IPM Drives with Variable DC-Link in the Field-Weakening Region [PDF]
, 2009 This paper presents the direct flux control of an interior permanent-magnet (IPM) motor drive in the field-weakening region. The output torque is regulated by the coordinated control of the stator flux amplitude and the current component in quadrature ...
Armando, Eric Giacomo +2 more
core +1 more source
Advanced Functional Materials, EarlyView.Zinc(II) coordination complexes with tunable aryloxy‐imine ligands exhibit controllable supramolecular self‐assembly into hierarchical fibrous structures. Coordination‐driven stacking, not π–π interactions, enables gelation, dynamic assembly/disassembly, and enhanced nanomechanical properties.
Merlin R. Stühler +10 more
wiley +1 more source
Direct Torque Control of Induction Motor Based on Sliding Mode Variable Structure
Gong-kuang zidonghua, 2012 In view of problems of big flux linkage and torque ripple, imprecise low speed control of conventional direct torque control of induction motors, the paper proposed a new direct torque control method based on sliding mode variable structure on basis of ...
HAN Ya-jun +3 more
doaj
Analysis and Simulation of Direct Torque Controlled Induction Motor Drive [PDF]
, 2014 The vector control study of an induction motor countenances the decoupled analysis. In this control torque and flux components are independently controlled (just as in dc motor).
mohanty, A, Sahoo, A
core
Improved Direct Torque Control method of brushless doubly-fed reluctance machines for wind turbine [PDF]
, 2013 Direct Torque Control (DTC) method is an excellent technique for torque and flux control for a brushless doubly-fed reluctance machine (BDFRM). The advantages of the DTC method are simple implementation, fast response and little dependence on the machine
Dorrell, DG, Song, WK
core +1 more source