Results 1 to 10 of about 23,950 (193)

Detection of turn short circuit fault in PMSM variable speed sensorless vector control based on luenberger observer and adaptive Fuzzy Logic Controller [PDF]

open access: yesRevista Română de Informatică și Automatică, 2023
The current study describes a novel approach for controlling a Permanent Magnet Synchronous Motor (PMSM) that utilizes intelligent speed sensorless control based on Field-Oriented Control (FOC), by taking inter-turn short-circuit (ITSC) faults into ...
Safia KERCHA   +4 more
doaj   +1 more source

Análise de gênero para o ensino e a produção de protocolos de artigos de pesquisa em língua inglesa

open access: yesRevista X, 2021
À luz da Aprendizagem Centrada no Aluno (ROGERS, 1983; McCOMBS; WHISTLER, 1997) e do ensino de Inglês para Fins Específicos (HUTCHINSON; WATERS, 1987), o presente artigo propõe uma Análise de Gênero (SWALES, 1990), investigando a seção Protocolo ...
Victor Gomes Milani
doaj   +1 more source

Control of PMSM chaos using backstepping-based adaptive fuzzy method in the presence of uncertainty and disturbance

open access: yesSystems Science & Control Engineering, 2021
This paper presents a novel nonlinear control strategy based on a backstepping fuzzy adaptive approach to avoid chaos in a synchronous motor. In the controller design and stability proof, the parameter uncertainty and the system disturbance are taken ...
Jie Zhang   +4 more
doaj   +1 more source

Electromagnetic Vibration and Noise Comparison of Amorphous Metal PMSMs and Silicon Steel PMSMs [PDF]

open access: yesIEEE Access, 2019
This paper investigates the differences in the electromagnetic vibration and noise of an amorphous metal (AM) permanent magnet synchronous machines (PMSMs) and silicon steel (SS) PMSMs. The electromagnetic vibration and noise of an AM PMSM and an SS PMSM sharing the same structure and dimensions are calculated under different conditions: 1) only radial
Shengnan Wu   +3 more
openaire   +2 more sources

Cogging torque sensitivity considering imperfect magnet positioning for permanent magnet machines of different slot and pole count

open access: yesCES Transactions on Electrical Machines and Systems, 2020
This work is about analyzing surface mounted permanent magnet machines regarding their sensitiveness related to erroneous magnet positioning. A finite element analysis based approach is presented and different topologies in terms of slot and pole count ...
Gerd Bramerdorfer   +2 more
doaj   +1 more source

Universal System for Detection and Compensation of Current Sensor Faults in Three-Phase Power Electronic Systems

open access: yesPower Electronics and Drives, 2022
The article discusses the universal current sensor fault detection and compensation mechanism, which can be applied in three-phase power electronics (PE) symmetrical system.
Dybkowski Mateusz, Jankowska Kamila Anna
doaj   +1 more source

UMA SEQUÊNCIA DIDÁTICA PARA INTEGRAR SABERES AMBIENTAIS NOS SEXTOS ANOS DO ENSINO FUNDAMENTAL

open access: yesRevista Ensino de Geografia, 2019
No atual contexto, devem-se desenvolver propostas pedagógicas voltadas a Educação Ambiental, que conduzam aos estudantes a reflexões sobre o Planeta em que vivemos e a sua qualidade ambiental. Neste sentido, o presente trabalho teve como objetivo relatar
Natália Lampert Batista   +2 more
doaj   +1 more source

Fault Diagnosis of Bearings Based on SSWT, Bayes Optimisation and CNN

open access: yesPolish Maritime Research, 2023
Bearings are important components of rotating machinery and transmission systems, and are often damaged by wear, overload and shocks. Due to the low resolution of traditional time-frequency analysis for the diagnosis of bearing faults, a synchrosqueezed ...
Yan Guohua, Hu Yihuai, Shi Qingguo
doaj   +1 more source

Sensorless control of deep-sea ROVs PMSMs excited by matrix converters [PDF]

open access: yes, 2005
The paper reports the development of model-based sensorless control methodologies for driving PMSMs using matrix converters. In particular, experimental results show that observer-based state-estimation techniques normally employed for sensorless control
Bhangu, B S   +3 more
core   +1 more source

Ensino de Humanidades: O Percurso Geográfico e Histórico da Reforma Protestante

open access: yesRELACult, 2018
No ensino de humanidades, o constante contato com a Filosofia, a Arte, a Literatura, a História e a Geografia, o uso da imagem aliada ao texto renova a prática da indução e da reflexão do conhecimento.
Elsbeth Léia Spode Becker   +2 more
doaj   +1 more source

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