Results 31 to 40 of about 316,098 (246)

Permanent-magnet flux adaptation for sensorless synchronous motor drives

, 2018
This paper deals with estimation of the permanent-magnet (PM) flux in sensorless synchronous motor drives. A back-electromotive-force (back-EMF)-based observer is augmented with an adaptation law for the PM flux magnitude.
Jarno Kukkola, Tuovinen, Toni, Saarakkala, Seppo E., Kukkola, Jarno, Seppo E. Saarakkala, Awan, Hafiz Asad Ali, Toni Tuovinen, Hafiz Asad Ali Awan, Marko Hinkkanen, Hinkkanen, Marko   +9 more
core   +1 more source

motulator: Motor Drive Simulator in Python

, 2023
This paper deals with the time-domain simulation of electric machine drives in Python. Python offers a full-featured numerical computing environment, comparable to leading commercially available alternatives, whilst being fully open-source.
Peretti, Luca, Hartikainen, Hannu, Tiitinen, Lauri,, Hartikainen, Hannu,, Hinkkanen, Marko,, Hinkkanen, Marko, Peretti, Luca,, Tiitinen, Lauri   +7 more
core   +1 more source

Unified Direct-Flux Vector Control for AC motor drives [PDF]

, 2010
The paper introduces a Unified Direct-Flux Vector Control scheme suitable for sinusoidal AC motor drives. The AC drives considered here are Induction Motor, Synchronous Reluctance and synchronous Permanent Magnet motor drives, including Interior and ...
R. Bojoi, P. Guglielmi, BOJOI, IUSTIN RADU, Bojoi, R., Pellegrino, Gian-Mario Luigi, Guglielmi, Paolo, PELLEGRINO, GIAN - MARIO LUIGI, G. Pellegrino   +7 more
core   +1 more source

Effect of hydrostatic pressure on the anodic dissolution process of X80 steel

Journal of Materials Research and Technology
Based on the fact that hydrostatic pressure affects chemical potentials of reaction species and the structure evolution of electric double layer (EDL), the authors propose a generalized-BV equation to analyze the anodic dissolution process of X80 steel ...
Shixiong Wu, Zhiming Gao, Hang Jia, Jialiang Liu, Wenbin Hu   +4 more
doaj   +1 more source

Multi-phase System Supplied by SVM VSI: A New Fast Algorithm to Compute Duty Cycles [PDF]

, 2004
La version éditeur de cette article est disponible à l'adresse suivante : http://www.epe-association.org/epe/index.phpMany authors proposed SVM VSI applied to multi-phase ...
HAUTIER, Jean-Paul, KESTELYN, Xavier, SEMAIL, Eric   +2 more
core   +1 more source

Discrepancies Between Micro Versus Macroscale Viscoelastic Properties in a Microplastic‐Tissue Composite Model

Advanced Engineering Materials, EarlyView.
This study explores the discrepancies between bulk mechanics and spatial mapping in a tissue‐mimetic hydrogel model. Microplastic particles create localized stiff mechanical microenvironments that are detectable by cellular‐scale nanoindentation but leave bulk properties unchanged as measured by rheology.
Ahron T. Verschleisser, Baptiste Le Roi, Omri Leshem, Joshua M. Grolman   +3 more
wiley   +1 more source

Fiber Rearrangement and Matrix Compression in Soft Tissues: Multiscale Hypoelasticity and Application to Tendon

Frontiers in Bioengineering and Biotechnology, 2021
It is widely accepted that the nonlinear macroscopic mechanical behavior of soft tissue is governed by fiber straightening and re-orientation. Here, we provide a quantitative assessment of this phenomenon, by means of a continuum micromechanics approach.
Claire Morin, Christian Hellmich, Zeineb Nejim, Stéphane Avril, Stéphane Avril   +4 more
doaj   +1 more source

Multiphase induction motor drives - a technology status review [PDF]

, 2007
The area of multiphase variable-speed motor drives in general and multiphase induction motor drives in particular has experienced a substantial growth since the beginning of this century.
Williamson, S, H. A. TOLIYAT, S. WILLIAMSON, Levi, E, Bojoi, R, Toliyat, H.A., Toliyat, HA, Levi, E., Williamson, S., Profumo, Francesco, E. LEVI, Profumo, F, Bojoi, Iustin Radu   +12 more
core   +1 more source

Enhanced Ferroelectric Phase Formation via Local Structure Modification in the Pre‐Crystalline State of Hafnium Zirconium Oxide Thin Films

Advanced Functional Materials, EarlyView.
Hafnium zirconium oxide thin films are grown using plasma‐enhanced atomic layer deposition with the addition of an atomic layer annealing (ALA) step. ALA leads to a change in the short‐range structure of the deposit and encourages formation of the ferroelectric Pca21 phase. The result is wake‐up‐free performance with films exposed to ALA.
Nicolas K. Lam, Gerald R. Bejger, Waseem A. Wani, Kristina M. Holsgrove, Andrew N. Titus, Niyorjyoti Sharma, Shihao Wang, Keithen Orson, Megan K. Lenox, Liron Shvilberg, Yong Kyu Choi, Ian A. Brummel, Benjamin L. Aronson, Petra Reinke, Quentin Ramasse, Amit Kumar, Brian J. Rodriguez, Christina M. Rost, Jon F. Ihlefeld   +18 more
wiley   +1 more source

Confinement in Metal‐Organic Frameworks as a Route to Harnessing Liquid Barocalorics in the Solid‐State

Advanced Functional Materials, EarlyView.
Encapsulation of solid–liquid barocalorics (BC) within MOFs harnesses their colossal BC performance whilst allowing active control of BC properties through BC‐MOF interactions. ABSTRACT Barocaloric (BC) effects at liquid–vapor transitions in hydrofluorocarbons drive most commercial technologies used for heating and cooling in the heating, ventilation ...
Ming Zeng, Frederic Rendell‐Bhatti, Eamonn T. Connolly, Yang Wang, Clàudia Pérez‐Junyent, Josep‐Lluís Tamarit, Ross S. Forgan, Pol Lloveras, David Boldrin   +8 more
wiley   +1 more source