Hysteresis Control Technique
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Experimental Investigation on Limit Cycle Wing Rock Effect on Wing Body Configuration Induced by Forebody Vortices
ABSTRACT The purpose of this paper is to present the aerodynamic and flow characteristics of a slender body with a 30° swept wing configuration undergoing a limit cycle oscillation using a synchronous measurement and control technique of wing rock/particle image velocimetry/dynamic pressure associated with the time history of the wing rock motion. The exper
J. Aerosp. Technol. Manag.. Publicado em: 2016-09
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2. Estudo da transformação durante o resfriamento continuo e da microestrutura do aço microligado X80 utilizado na construção de tubos para transporte de gás natural e petróleo. / Study of the transformation during the continuous cooling and the microstructure of microalloyed steel X80 used in the building of pipelines for gas and oil transport.
The continuous increase of energy generated from petroleum and natural gas created the need to improve the mechanical properties of microalloyed steels used in gas and oil pipelines, in order to increase their flow with smaller costs and higher reliability. The control of the different phases, morphology of microconstituents like ferrite plus carbide aggrega
Publicado em: 2008
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3. Controle por histerese com freqüência quase constante de um pré-regulador Boost / The hysteresis control technique with quasi constant switching frequency qpplied to the Boost converter
Correção de fator de potência e taxas de distorção harmônica reduzidas são aspectos desejáveis em conversores CA/CC, uma vez que a utilização de conversores estáticos em larga escala afeta a qualidade da energia elétrica. Assim, este trabalho propõe o estudo de uma estratégia de controle por histerese com freqüência de chaveamento aproximadam
Publicado em: 2005
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4. Formação de nanoestruturas magneticas por aquecimento Joule
In this thesis, we discuss the processes of formation and control of magnetic nanostructures in binary alloys of composition Cu90 Co10 and Cu85 Co15, and in the amorphous alloy of composition Fe86 Zr7 Cu1 B6 through thermal annealing using the Joule heating technique. We present two diferent ways to control the Joule heating: by directly applying the anneali
Publicado em: 2000
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5. Acionamento de um motor de indução com comandos suaves de torque, utilizando a tecnica de controle vetorial por campo orientado
The project and implementation of control systems whith high performance and reliability for three phase induction motors need a complete modeling of the machine, in a moving reference system and the utilization of the vectorial method. The purpose of this work is the implementation of a system which uses the rotor field orientation technique (indirect metho
Publicado em: 1993