Results 31 to 40 of about 26,566 (274)

Theoretical analysis of control properties for the brushless doubly fed reluctance machine [PDF]

, 2002
Presents the fundamental theory, modelling aspects and operating/control principles of the BDFRM. This emerging machine technology is being regarded by academic and industrial communities as a prospective brushless candidate for wind turbine generators ...
Betz, Robert, Jovanovic, Milutin
core   +2 more sources

Full- & Reduced-Order State-Space Modeling of Wind Turbine Systems with Permanent-Magnet Synchronous Generator [PDF]

, 2018
Wind energy is an integral part of nowadays energy supply and one of the fastest growing sources of electricity in the world today. Accurate models for wind energy conversion systems (WECSs) are of key interest for the analysis and control design of ...
Hackl, Christoph M., Hohmann, Sören, Jané-Soneira, Pol, Pfeifer, Martin, Schechner, Korbinian   +4 more
core   +3 more sources

Particle swarm optimisation technique to improve energy efficiency of doubly-fed induction generators for wind turbines

The Journal of Engineering, 2019
Wind energy conversion systems (WECSs) require a suitable control to maximise the power generated by wind turbines independently on the wind conditions.
Cherngchai Sompracha, Dilan Jayaweera, Pietro Tricoli   +2 more
doaj   +1 more source

Review of low voltage ride-through technology of doubly-fed induction generator

The Journal of Engineering, 2019
In recent years, with the increasing of wind power development, the demand for low voltage ride-through (LVRT) technology was proposed to ensure the safe and reliable operation of the power system.
Lele Niu, Xiao Wang, Linlin Wu, Feng Yan, Man Xu   +4 more
doaj   +1 more source

Voltage dip generator for testing wind turbines connected to electrical networks [PDF]

, 2011
This paper describes a new voltage dip generator that allows the shape of the time profile of the voltage generated to be configured. The use of this device as a tool to test the fault ride-through capability of wind turbines connected to the electricity
Abbesa, Atienza, C. Veganzones, C.A. Platero, D. Ramirez, F. Blazquez, F. Gordillo, Flannery, Garnacho, J. Merino, J.A. Sanchez, J.R. Arribas, Ledesma, N. Herrero, Rahimi, Rodriguez, S. Martinez, Sanchez, Santos-Martin, Slemon, Tsili, Veganzones   +21 more
core   +2 more sources

A Smart Bio‐Battery Facilitates Diabetic Bone Defect Repair Via Inducing Macrophage Reprogramming and Synergistically Modulating Bone Remodeling Coupling

Advanced Functional Materials, EarlyView.
This research presents a novel implantable bio‐battery, GF‐OsG, tailored for diabetic bone repair. GF‐OsG generates microcurrents in high‐glucose conditions to enhance vascularization, shift macrophages to the M2 phenotype, and regulate immune responses.
Nanning Lv, Haifu Sun, Wenxiang Tang, Yonggang Li, Zhonglai Qian, Lihui Hong, Chong Chen, Hongye Li, Jiaxiang Bai, Yusen Qiao, Mingming Liu   +10 more
wiley   +1 more source

Mesoporous Carbon Thin Films with Large Mesopores as Model Material for Electrochemical Applications

Advanced Functional Materials, EarlyView.
Mesoporous carbon thin films possessing 70 nm mesopores are prepared on titanium substrates by soft templating of resol resins with a self‐synthesized poly(ethylene oxide)‐block‐poly(hexyl acrylate) block copolymer. A strategy to avoid corrosion of the metal substrate is presented, and the films are extensively characterized in terms of morphology ...
Lysander Q. Wagner, Joshua Schober, Pascal Dippell, Chantal Glatthaar, Smail Mekhilef, David Schäfer, Hannes Hergert, Marcus Rohnke, Matthias T. Elm, Bernd M. Smarsly   +9 more
wiley   +1 more source

Pembangunan modul pengajaran berasaskan permainan digital bagi Kursus Teknologi Elektrik 1 [PDF]

, 2020
Pada abad ke-21 ini, pengajaran secara tradisional kurang mampu menarik perhatian pelajar dalam mempelajari sesuatu ilmu tersebut. Kementerian Pelajaran Malaysia (KPM) juga telah melancarkan program Sekolah Bestari seawal tahun 1999 yang bertujuan untuk ...
Azid, Nurulwahida, Mohamad, Mimi Mohaffyza, Nur Rahma Putra2, Andika Bagus, Risfendra, Risfendra, Roslen, Khaireen Edlin, Tee, Tze Kiong, Yee, Mei Heong   +6 more
core   +1 more source

Germanane Quantum Dots Promote Metabolic Reprogramming of Immune Cells Toward Regulatory T Cells and Suppress Inflammation In Vitro and In Vivo

Advanced Functional Materials, EarlyView.
Metabolic changes in immune cells direct the phenotype and function of the host immune system. Smart nanomaterials must target metabolic pathways to direct immune cell fate. This study reports the fabrication and first application of germanane quantum dots (GeHQDs) to modulate inflammation in vitro and in vivo.
Abhay Srivastava, Alireza Rafieerad, Weiang Yan, Keshav Narayan Alagarsamy, Qingdong Guan, Leena Regi Saleth, Michel Aliani, Sanjiv Dhingra   +7 more
wiley   +1 more source

Numerical Analysis of Stator Magnetic Wedge Effects on Equivalent Circuit Parameters of Brushless Doubly Fed Machines [PDF]

, 2018
This paper studies the effects of magnetic wedges used for closing stator open slots on the Brushless Doubly Fed Machines' (BDFM) equivalent circuit parameters.
Abdi Jalebi, Salman, Abdi, Ehsan, McMahon, Richard   +2 more
core   +1 more source