Results 111 to 120 of about 79,207 (312)

A change-detection algorithm for short-circuit fault detection in closed-loop AC drives [PDF]

, 2013
This paper deals with an on-line method for turn-to-turn short-circuit fault detection in low-voltage permanent-magnet synchronous machine drives. Due to the closed-loop control, the fault effects are reflected in the voltage.
Johan Gyselinck, Gyselinck, Johan, KESTELYN, Xavier, Semail, Eric, Eric Semail, Yves Mollet, Meinguet, Fabien, Kestelyn, X., Mollet, Yves, Fabien Meinguet, Xavier Kestelyn   +10 more
core   +1 more source

Genetic algorithm‐based approach for torque control and increased efficiency across an optimised speed range in switched reluctance drives

IET Electric Power Applications
This paper presents a novel genetic algorithm (GA) design for current profiling in switched reluctance machines that eliminates torque ripple (TR) while inherently guaranteeing minimal RMS currents across the machines speed range.
Euan MacRae, Ali Abdel‐Aziz, Khaled Ahmed, Richard Pollock, Barry W. Williams   +4 more
doaj   +1 more source

Robust Speed Controller Design Using H_infinity Theory for High-Performance Sensorless Induction Motor Drives

Energies, 2019
In this paper, a robust speed control scheme for high dynamic performance sensorless induction motor drives based on the H_infinity (H) theory has been presented and analyzed.
Ahmed A. Zaki Diab, Abou-Hashema M. El-Sayed, Hossam Hefnawy Abbas, Montaser Abd El Sattar   +3 more
doaj   +1 more source

Investigating the input power quality of multi-pulse AC-DC power converter fed induction motor drives. [PDF]

Heliyon, 2022
Nahin NI, Nafis M, Prokash Biswas S, Kamal Hosain M, Das P, Haq S.   +5 more
europepmc   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

Position-sensorless control of permanent-magnet-assisted synchronous reluctance motor

, 2003
The sensorless control of permanent-magnet-assisted synchronous reluctance (PMASR) motors is investigated, in order to conjugate the advantages of the sensorless control with full exploitation of the allowed operating area, for a given inverter.
Pastorelli, Michele Angelo, Pellegrino, Gian-Mario Luigi, Guglielmi, Paolo, Vagati, Alfredo, PELLEGRINO, GIAN - MARIO LUIGI   +4 more
core   +1 more source

Reduced-order observer analysis in MBPC techniques applied to the six-phase induction motor drives [PDF]

, 2015
Raúl Gregor, Jorge Rodas, Derlis Gregor and Federico Barrero (2015). Reduced-order Observer Analysis in MBPC Techniques Applied to the Six-phase Induction Motor Drives, Induction Motors - Applications, Control and Fault Diagnostics, Dr. Raul Gregor (Ed.),
Gregor, Raúl (Coordinador), Federico Barrero, Raúl Gregor, Gregor, Raúl, Rodas, Jorge, Barrero, Federico, Gregor, Derlis, Jorge Rodas, Derlis Gregor   +8 more
core   +1 more source

Research on TOGI‐EFLL flux observer for IPMSM sensorless control

IET Power Electronics
For the purpose of enhancing the performance of interior permanent magnet synchronous motors (IPMSMs) sensorless control, a flux observer based on a third‐order generalized integrator with enhanced frequency‐locked loop (TOGI‐EFLL) is introduced in this ...
Xue Hao, Yutao Luo
doaj   +1 more source

FPGA Implementation of AI-Based Inverter IGBT Open Circuit Fault Diagnosis of Induction Motor Drives. [PDF]

Micromachines (Basel), 2022
Rajeswaran N, Thangaraj R, Mihet-Popa L, Krishna Vajjala KV, Özer Ö.   +4 more
europepmc   +1 more source

Biophysical approaches for studying viral entry

FEBS Letters, EarlyView.
Viruses infect all living organisms and have been responsible for major epidemics and pandemics. Their ongoing evolutionary battle with host defenses creates a constant need for improved tools to study viral behavior. Advancing methods to probe viral attachment, fusion, and genome release deepen our understanding of how infections begin and support the
Inbar Yosibash, Raya Sorkin
wiley   +1 more source