Results 51 to 60 of about 654,293 (288)

A stator current vector orientation based multi-objective integrative suppressions of flexible load vibration and torque ripple for PMSM considering electrical loss

CES Transactions on Electrical Machines and Systems, 2020
To store energy from the grid into spiral torsion spring (STS) smoothly and efficiently via PMSM, a multi-objective control problem of flexible load's vibration, PMSM's torque ripple, and electrical loss is raised, where the current studies on vibration ...
Yang Yu, Leyao Cong, Xia Tian, Zengqiang Mi, Yang Li, Zhen Fan, Hui Fan   +6 more
doaj   +1 more source

LEAD: Literature Enhanced Ab Initio Discovery of Nitride Dusting Layers for Enhanced Tunnel Magnetoresistance and Lower Resistance Magnetic Tunnel Junctions

Advanced Materials, EarlyView.
Magnetic tunnel junctions (MTJs) using MgO tunnel barriers face challenges of high resistance‐area product and low tunnel magnetoresistance (TMR). To discover alternative materials, Literature Enhanced Ab initio Discovery (LEAD) is developed. The LEAD‐predicted materials are theoretically evaluated, showing that MTJs with dusting of ScN or TiN on ...
Sabiq Islam, William S. Rogers, Chen‐Yu Hu, Ming‐Yuan Song, Xinyu Bao, Shehrin Sayed, Jean Anne C. Incorvia   +6 more
wiley   +1 more source

Smooth Speed Control of Permanent Magnet Synchronous Machine Using Back Propagation Neural Network

World Electric Vehicle Journal, 2023
Torque ripple is one of the most critical problems in PMSM system. In this paper, a neural network (NN) torque compensator is combined with a conventional extended state observer (ESO)-based active disturbance rejection controller (ADRC) system to ...
Chenhao Zhao, Yuefei Zuo, Huanzhi Wang, Qiankang Hou, Christopher H. T. Lee   +4 more
doaj   +1 more source

Organic Materials of Tomorrow: Horizons of Artificial Intelligence

Advanced Materials, EarlyView.
This review examines machine learning techniques accelerating the discovery of organic semiconductors by linking molecular structure to properties. Key methods include graph neural networks, generative models, and active learning. Applications to organic photovoltaics demonstrate practical impact.
Harold Mena, J. Terence Blaskovits, Kun‐Han Lin, Denis Andrienko   +3 more
wiley   +1 more source

Desain Dan Simulasi Kontrol Kecepatan Motor Brushless Dc 7 Hp Menggunakan Metode Direct Torque Control Dengan Ripple Suppression

, 2023
Sejak dekade terakhir, mobil listrik berkembang begitu pesat. Salah satu bagian penggerak pada mobil listrik merupakan Motor Brushless DC (BLDC). Penggunaan motor BLDC sangat dibutuhkan karena motor ini memiliki rugi-rugi mekanik yang rendah, hal ...
Rayhan, Muhamad Faris
core  

Resonant Domain Wall Dynamics in a Three‐Dimensional Magnetic Nano Double Helix

Advanced Materials, EarlyView.
3D magnetic nanostructures promise exciting possibilities for magnetization dynamics. However, experimental realizations remain scarce. In nanoprinted cobalt double helices, time‐resolved X‐ray microscopy reveals harmonic domain wall dynamics. Simulations identify the mode and additional higher‐frequency resonances, revealing a rich dynamic landscape ...
Pamela Morales‐Fernández, Iason Konstantinos‐Douveas, Claas Abert, Elina Zhakina, Sandra Ruiz‐Gómez, Claudia Fernández‐González, Luke Alexander Turnbull, Sebastian Wintz, Markus König, Simone Finizio, Markus Weigand, Naëmi Leo, Dieter Suess, Aurelio Hierro‐Rodríguez, Amalio Fernández‐Pacheco, Claire Donnelly   +15 more
wiley   +1 more source

Harmonic-aware ultra-local model predictive current control with an improved extended state observer for DSPMM-based tidal stream generators

International Journal of Electrical Power & Energy Systems
Stable operation of direct-drive tidal current power generation systems under varying tidal input and electromagnetic-parameter uncertainty requires robust generator-side current control. In a doubly salient permanent magnet machine (DSPMM), the position-
Hao Chen, Hongyu Zhang, Jingang Han, Nadia Aït-Ahmed, Mohamed Benbouzid   +4 more
doaj   +1 more source

Moiré Phase Mapping in Twisted Bilayer Liquid Crystals with Reconfigurable Light Polarization States

Advanced Materials, EarlyView.
Twisted bilayer liquid crystals are developed by vertical stacking assembly of two liquid crystals having designer domains and optical properties. These moiré‐symmetry, twisted liquid crystals demonstrate reconfigurable polarization states, moiré patterns and phases controlled by twist angles, providing a route to design active optical devices for ...
Jordan A. Wilson, Rui Huang, Allen Sun, Zixian Fang, Doreen Mwangombe, Keerthna Naina Rawat, Oliver Jacobs, Zhiwei Li   +7 more
wiley   +1 more source

Inverse Design of Nanoparticulate Materials

Advanced Materials, EarlyView.
Inverse design shifts nanomaterial development from empirical trial‐and‐error to predictive model‐driven strategies. It can rely on knowledge‐based, data‐based, or hybrid process and property functions. This perspective article provides a practical framework for applying inverse design based on instructive examples. It discusses which modeling approach
Nabi Etienne Traoré, Annika Mauch, Michelle Berthold, Lukas Pflug, Wolfgang Peukert, Nicolas Vogel   +5 more
wiley   +1 more source

Torque ripple reduction of switched reluctance motor using direct instantaneous torque control and adaptive turn‐on technique for electric vehicle applications

IET Electric Power Applications, 2023
Direct Instantaneous Torque Control (DITC) with an adaptive turn‐on angle technique is presented in this paper to improve the torque ripple of the Switched Reluctance Motor (SRM) for Electric Vehicle applications. Torque ripple suppression is achieved by
Laith Al Quraan, Laszlo Szamel
doaj   +1 more source