Robust Adaptive Control
Mostrando 13-20 de 20 artigos, teses e dissertações.
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13. DESIGN AND DEVELOPMENT OF A THREE-PHASE FOUR-WIRE AC POWER SOURCE / PROJETO E DESENVOLVIMENTO DE UMA FONTE DE POTÊNCIA CA TRIFÁSICA A QUATRO FIOS
Este trabalho apresenta uma contribuição ao estudo de Fontes de Potência CA onde é apresentado o desenvolvimento de um protótipo. Os diversos estágios que compõem o sistema, desde a topologia do conversor, do filtro, da instrumentação e do controlador são apresentados e analisados. O protótipo desenvolvido é uma fonte trifásica a quatro fios, qu
Publicado em: 2006
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14. CONTROLE DE ACELERAÇÃO DE UMA MÁQUINA DE VIBRAÇÃO ELETRODINÂMICA / ACCELERATION CONTROL OF AN ELECTRODYNAMIC VIBRATION MACHINE
This work presents the development of a novel digital acceleration controller for sinusoidal vibration tests using switching-mode AC power source (ACPS) fed electrodynamic vibration machines. The proposed scheme is based on the interaction of two control loops: one for the shaker s acceleration regulation and another for the ACPS output voltage control. A ro
Publicado em: 2005
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15. The active noise control in ducts: a theoretical experimental study / O controle ativo de ruído em dutos: um estudo teórico -experimental
This work is dedicated to the study of the problem of active noise control, evaluating some numerical and experimental methodologies. The analysis is restricted to the case of noises in ducts, in which the acoustic propagation phenomena are modeled. Four approaches for this type of models are presented. The first one is formulated by using the basic equation
Publicado em: 2005
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16. O controle ativo de ruÃdo em dutos: um estudo teÃrico -experimental / The active noise control in ducts: a theoretical â experimental study
This work is dedicated to the study of the problem of active noise control, evaluating some numerical and experimental methodologies. The analysis is restricted to the case of noises in ducts, in which the acoustic propagation phenomena are modeled. Four approaches for this type of models are presented. The first one is formulated by using the basic equation
Publicado em: 2005
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17. Aplicação de metodos de computação flexivel em navegação autonoma de veiculos
Autonomous vehicle navigation is a well-known and typical example of an autonomous control problem. This type of control problem involves a very complex, unstructured environment. The great amount of parameters preclude the use of a mathematical model of the environment. Thus, autonomous control demands constantly adapting, locally situated control methods,
Publicado em: 1995
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18. Modelagem, controle adaptativo e otimização de um processo não-linear
The modelling of a high-purity distillation column utilized in the semiconductor industry is realized giving an adequate enviromment for adaptive control algorithms analysis. The model contains all the complexities of the real process (gain, time constants and dead time that change nonlinearly) but is simple, robust and computacionally efficient. For solving
Publicado em: 1989
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19. Adaptive-Control Model for Neutrophil Orientation in the Direction of Chemical Gradients
Neutrophils have a remarkable ability to detect the direction of chemoattractant gradients and move directionally in response to bacterial infections and tissue injuries. For their role in health and disease, neutrophils have been extensively studied, and many of the molecules involved in the signaling mechanisms of gradient detection and chemotaxis have bee
The Biophysical Society.
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20. Adaptive cellular interactions in the immune system: the tunable activation threshold and the significance of subthreshold responses.
A major challenge for immunologists is to explain how the immune system adjusts its responses to the microenvironmental context in which antigens are recognized. We propose that lymphocytes achieve this by tuning and updating their responsiveness to recurrent signals. In particular, cellular anergy in vivo is a dynamic state in which the threshold for a ster