Fixed Order Controller
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Spline Dynamic Matrix Controller : uma nova formulação de controladores preditivos lineares
In the field of dynamic simulation, an understanding of the dynamic behavior of chemical processes is important from both process design and process system perspectives. Several methodologies have been developed so far, such as Step Response (SR), Transfer Function (TF) and Discrete State Space representation (DSS). Such approaches, however, have some disadv
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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2. Avaliação de controle neural a um processo de quatro tanques acoplados
The main goal of this doctorate thesis is the evaluation of neural control on a four interconnected tanks process, in laboratory environment, where the controlled variable is the water level height of the fourth tank. The dynamics of this process is non linear, as the outflow from the tanks depends on the square root of corresponding water height. This type
Publicado em: 2009
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3. Controle automatico eletronico de ganho com supressão de transientes aplicado a EDFAs em redes opticas WDM / Eletronic automatic gain control with transient suppresion applied over WDM optical networks
IIn WDM optical communication systems erbium doped fiber amplifiers (EDFA) have an essential function, enabling amplification of simultaneous channels independently of transmit rate. The majority of current WDM systems use point to point configuration operating with a fixed number of channels over the optical link. However, the new generation optical systems
Publicado em: 2008
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4. Adaptive techniques applied to offshore dynamic positioning systems
Dynamic positioning systems (DPS) comprise the deployment of active propulsion to maintain the position and heading of a vessel. Several sensors are used to measure the actual position of the floating body, while a control algorithm is responsible for the calculation of forces to be delivered by each propeller, in order to counteract all environmental forces
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2006-09
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5. Síntese de controladores robustos H2/H[infinito] D- estáveis via algoritmos evolutivos : uma abordagem LMI
This work is concerned with the mixed H2/H1 robust control problem combined with robust D−stability in linear matrix inequality (LMI) regions. Continuous-time linear systems subject to polytopic parametric uncertainties are studied. Based on Evolutionary Algorithms and LMIs, an hybrid algorithm is presented for numerical computation of a robust fixed-o
Publicado em: 2006
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6. Sintese de controladores H Infinito de ordem reduzida com aplicação no controle ativo de estruturas flexiveis / Synthesis of reduced order H Infinite controllers to the active control flexible structures
A implementação de controladores de ordem reduzida (fixa) demanda um menor esforço de processamento e consequentemente recursos de hardware menos sofisticados em relação à implementação de controladores de ordem completa. Este trabalho mostra que a implementação prática de controladores H 00 de ordem fixa voltados para o controle de estruturas fle
Publicado em: 2006
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7. Analise e controle da energia eletrica atraves de tecnicas de processamento digital de sinais
Considering the areas of Power Quality and Power Conditioning, this work proposes and discusses the use of a Selective Identification Methodology in order to identify the so-called ideal, as well as the disturbing, voltage and current components in a general polyphase power system. Such methodology is presented and described by means of discrete-time signal
Publicado em: 2004
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8. Controle avançado de um reator quimico de leito fixo : aplicação para oxidação do etanol a acetaldeido
The use of fixed bed catalytic reactors in the chemical industry, and the necessity of controlling and optimizing these reactors, have motivated the studies of dynamic models and control techniques, such as the use of Feedback-Feedforward controllers, working simultaneously. In practice, several feedforward control systems are implemented using ratio control
Publicado em: 2001
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9. CONTROL PROBLEM SOLUTIONS BY FREQUENCY DEPENDENT BMIS AND LMIS / SOLUÇÃO DE PROBLEMAS DE CONTROLE VIA BMIS E LMIS DEPENDENTES DA FREQÜÊNCIA
In this thesis, it is proposed and analysed in terms of the global-convergence property a new algorithm for solving quadratic optimisation problems under either a BMI (bilinear matrix inequality) or a frequency-dependent LMI (linear matrix inequality) constraints. These problems are of special interest in the control literature a some very important control
Publicado em: 2000
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10. Conventional versus slug CO2 loading and the control of breathing in anaesthetized cats.
1. Conventional inspiratory CO2 loading (CCL) is accomplished by having the subject breathe CO2-enriched air. An alternative method of CO2 loading is to inject a bolus of CO2 at the start of each inspiration into the inspired air: slug CO2 loading (SCL). During SCL PCO2 in the conducting airways declines quickly towards 0 kPa in the course of inspiration, wh