2009 17th Mediterranean Conference on Control and Automation最新文献_第8页

Robust controller design for linear fractional-order systems with nonlinear time-varying model uncertainties 非线性时变模型不确定性线性分数阶系统的鲁棒控制器设计

2009 17th Mediterranean Conference on Control and Automation Pub Date : 2009-06-24 DOI: 10.1109/MED.2009.5164645

I. N’Doye, M. Zasadzinski, N. Radhy, Abdelhaq Bouaziz

引用次数: 6

Neuromuscular blockade nonlinear model identification 神经肌肉阻断非线性模型辨识

2009 17th Mediterranean Conference on Control and Automation Pub Date : 2009-06-24 DOI: 10.1109/MED.2009.5164699

B. A. Costa, M. M. Silva, Teresa Mendonça, João M. Lemos

{"title":"Neuromuscular blockade nonlinear model identification","authors":"B. A. Costa, M. M. Silva, Teresa Mendonça, João M. Lemos","doi":"10.1109/MED.2009.5164699","DOIUrl":"https://doi.org/10.1109/MED.2009.5164699","url":null,"abstract":"This paper presents a methodology for parameter estimation of a nonlinear neuromuscular blockade dynamic model to be used as a predictive model for automated control, in general anesthesia. The neuromuscular blockade dynamic model comprises two blocks connected in series, a pharmacokinetic model and the pharmacodynamic model. The pharmacokinetic model is a second order linear dynamic model and describes the redistribution of the drug in the body. The pharmacodynamic model is a nonlinear function, named as the Hill equation, and it describes the interaction between the concentration of the drug in the effect site and the measured patient's muscle paralysis state. The identification methodology uses four data points taken from the neuromuscular blockade response obtained with the administration of the first bolus. The four data points are chosen to avoid the identification difficulties caused by the presence of the nonlinear behavior of the Hill equation. This approach enables the identification of the pharmacokinetic dynamics, that is, the two poles of the second order linear dynamic model followed by the estimation of the normalized parameters of the Hill equation. Computer simulations show that the proposed identification methodology is able to provide good results even when the pharmacokinetic dynamics has an order higher that two. This suggests that the methodology may be employed in neuromuscular blockade automated control as a predictive model, to help the initial tuning of the controller parameters or in adaptive control to get a first model that can be improved with online identification using some recursive minimization techniques to adjust the adaptive controller or as an advising mechanism to help the anesthesiologist during the anesthesia.","PeriodicalId":422386,"journal":{"name":"2009 17th Mediterranean Conference on Control and Automation","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115373112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Adaptive temperature control in a tubular chemical reactor 管式化学反应器的自适应温度控制

2009 17th Mediterranean Conference on Control and Automation Pub Date : 2009-06-24 DOI: 10.1109/MED.2009.5164711

P. Dostál, V. Bobál, J. Vojtesek

引用次数: 3

Low-cost embedded solution for PID controllers of DC motors 直流电机PID控制器的低成本嵌入式解决方案

2009 17th Mediterranean Conference on Control and Automation Pub Date : 2009-06-24 DOI: 10.1109/MED.2009.5164706

P. Dobra, D. Dumitrache, L. Tomesc, R. Duma, M. Trusca

引用次数: 9

Miniature embedded rotorcraft platform for aerial teleoperation experiments 用于空中遥控实验的微型嵌入式旋翼机平台

2009 17th Mediterranean Conference on Control and Automation Pub Date : 2009-06-24 DOI: 10.1109/MED.2009.5164608

J. Andersh, B. Mettler, N. Papanikolopoulos

{"title":"Miniature embedded rotorcraft platform for aerial teleoperation experiments","authors":"J. Andersh, B. Mettler, N. Papanikolopoulos","doi":"10.1109/MED.2009.5164608","DOIUrl":"https://doi.org/10.1109/MED.2009.5164608","url":null,"abstract":"This paper describes the hardware and software systems that make up an experimental architecture developed to facilitate teleoperation research for miniature rotorcraft. One objective in developing this platform is to place the minimum required sensors and electronics onboard a miniature helicopter with limited payload. The onboard hardware resources must be sufficient to simplify the teleoperation task for the operator. While being developed, the onboard system is coupled with the infrastructure at the Interactive Guidance and Control Lab at the University of Minnesota to allow for a systematic approach to the investigation of onboard control and guidance augmentations. The overall architecture integrates components that allow a variety of estimation, control and guidance algorithms to be conveniently implemented and tested. In the lab environment, a Vicon tracking system is used to accurately determine a helicopter's pose and orientation and evaluate algorithms on stationary computers. This accurate information is used to develop the necessary metrics and evaluate the performance of different algorithms before transition to real-world situations.","PeriodicalId":422386,"journal":{"name":"2009 17th Mediterranean Conference on Control and Automation","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127181781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Stabilization of discrete-time 2D T-S fuzzy systems by state feedback control 离散二维T-S模糊系统的状态反馈镇定

2009 17th Mediterranean Conference on Control and Automation Pub Date : 2009-06-24 DOI: 10.1109/MED.2009.5164505

A. Hmamed, A. El Hajjaji, A. Benzaouia

引用次数: 18

Asymptotic quotient observers for 2-D Fornasini Marchesini models 二维Fornasini - Marchesini模型的渐近商观测器

2009 17th Mediterranean Conference on Control and Automation Pub Date : 2009-06-24 DOI: 10.1109/MED.2009.5164764

L. Ntogramatzidis, M. Cantoni

引用次数: 0

Design and development of an Embedded Control System of a DC/DC power converter for a fuel cell 燃料电池DC/DC电源变换器嵌入式控制系统的设计与开发

2009 17th Mediterranean Conference on Control and Automation Pub Date : 2009-06-24 DOI: 10.1109/MED.2009.5164703

Konstantinos Kontonikolas, C. Ziogou, F. Stergiopoulos, S. Papadopoulou, S. Voutetakis

{"title":"Design and development of an Embedded Control System of a DC/DC power converter for a fuel cell","authors":"Konstantinos Kontonikolas, C. Ziogou, F. Stergiopoulos, S. Papadopoulou, S. Voutetakis","doi":"10.1109/MED.2009.5164703","DOIUrl":"https://doi.org/10.1109/MED.2009.5164703","url":null,"abstract":"The non-linear behavior of the Voltage-Current (VI) fuel cells' output curve is one of the major issues the scientific community deals with, in order to improve fuel cell technology and expand its use to both domestic and industrial applications. Many power conditioning topologies of a fuel cell's output electrical energy have been presented in the past years, but the DC/DC Interleaved Boost Converter (IBC) topology seems to be one of the most attractive solutions. Therefore, IBC control schemes become a key factor in fuel cell energy systems and the use of Embedded Systems is highly indicated for efficient and reliable real-time control. The traditional methods of programming microcontrollers via “C” or Assembly language, may take a respectable amount of time to develop, significantly slowing down the procedures for system development and validation. This paper presents a new model-based rapid prototyping method for programming Embedded Systems using Matlab/Simulink® models. The Embedded Control System (ECS) is designed to control the input current of an IBC connected to a fuel cell, by suitably varying the switching signals which drive the Power Switches on the IBC.","PeriodicalId":422386,"journal":{"name":"2009 17th Mediterranean Conference on Control and Automation","volume":"128 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124225097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Adaptive optimal controllers based on Generalized Policy Iteration in a continuous-time framework 连续时间框架下基于广义策略迭代的自适应最优控制器

2009 17th Mediterranean Conference on Control and Automation Pub Date : 2009-06-24 DOI: 10.1109/MED.2009.5164743

D. Vrabie, K. Vamvoudakis, F. Lewis

{"title":"Adaptive optimal controllers based on Generalized Policy Iteration in a continuous-time framework","authors":"D. Vrabie, K. Vamvoudakis, F. Lewis","doi":"10.1109/MED.2009.5164743","DOIUrl":"https://doi.org/10.1109/MED.2009.5164743","url":null,"abstract":"In this paper we present two adaptive algorithms which offer solution to the continuous-time optimal control problem for nonlinear, affine in the inputs, time-invariant systems. Both algorithms were developed based on the Generalized Policy Iteration technique and involve adaptation of two neural network structures namely Actor, providing the control signal, and Critic, performing evaluation of the control performance. Despite the similarities, the two adaptive algorithms differ in the manner in which the adaptation takes place, required knowledge on the system dynamics, and formulation of the persistence of excitation requirement. The main difference is that one algorithm uses sequential adaptation of the actor and critic structures, i.e. while one is trained the other one is kept constant, while for the second algorithm the two neural networks are trained synchronously in a continuous-time fashion. The two algorithms are described in detail and proof of convergence is provided. Simulation results of applying the two algorithms for finding the optimal state feedback controller of a nonlinear system are also presented.","PeriodicalId":422386,"journal":{"name":"2009 17th Mediterranean Conference on Control and Automation","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124264637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 51

An Expert System for supporting the conceptual design of controllers for lower limbs rehabilitation systems 支持下肢康复系统控制器概念设计的专家系统

2009 17th Mediterranean Conference on Control and Automation Pub Date : 2009-06-24 DOI: 10.1109/MED.2009.5164753

V. Moulianitis, V. Syrimpeis, N. Aspragathos, E. Panagiotopoulos

引用次数: 0