Pub Date : 2006-06-14DOI: 10.1109/ACC.2006.1657427
Yuncan Xue, Jun Feng, Fei Liu
An optimum furnace charge plan model with unknown charge number for steelmaking continuous casting planning and scheduling is presented. Based on the analysis of the difficult to solve the problem, a pseudo travel salesman problem model is presented to describe the plan and scheduling model. An improved particle swarm optimization with variant particle is presented to solve the optimum charge plan problem. Simulations have been carried and the results show that the pseudo travel salesman problem is very fit for describe the model. The computation with practical data shows that the model and the solving method are very effective
{"title":"Modified particle swarm optimization algorithm for steelmaking charge plan with unknown charge number","authors":"Yuncan Xue, Jun Feng, Fei Liu","doi":"10.1109/ACC.2006.1657427","DOIUrl":"https://doi.org/10.1109/ACC.2006.1657427","url":null,"abstract":"An optimum furnace charge plan model with unknown charge number for steelmaking continuous casting planning and scheduling is presented. Based on the analysis of the difficult to solve the problem, a pseudo travel salesman problem model is presented to describe the plan and scheduling model. An improved particle swarm optimization with variant particle is presented to solve the optimum charge plan problem. Simulations have been carried and the results show that the pseudo travel salesman problem is very fit for describe the model. The computation with practical data shows that the model and the solving method are very effective","PeriodicalId":265903,"journal":{"name":"2006 American Control Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130632658","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}
Pub Date : 2006-06-14DOI: 10.1109/ACC.2006.1657321
A. Alif, M. Darouach, M. Boutayeb
In this paper, existence and design of reduced-order robust Hinfin filters for a class of neutral systems are addressed. We focus in particular on systems subjected to parametric uncertainties and unknown inputs. Thanks to the descriptor system approach and several algebraic manipulations, we shall establish that the existence of such filters is guaranteed when certain necessary and sufficient conditions are fulfilled. Thereafter, based on the Krasovskii stability theorem, it is shown that the design of such filters is tuned into a feasibility problem of some reduced-order linear matrix inequalities. Finally, we present an illustrative example to show the effectiveness of the obtained results
{"title":"On the Robust H/spl infin/ Reduced-Order Unknown-Input Filtering Problem for a Class of Uncertain Linear Neutral Systems","authors":"A. Alif, M. Darouach, M. Boutayeb","doi":"10.1109/ACC.2006.1657321","DOIUrl":"https://doi.org/10.1109/ACC.2006.1657321","url":null,"abstract":"In this paper, existence and design of reduced-order robust Hinfin filters for a class of neutral systems are addressed. We focus in particular on systems subjected to parametric uncertainties and unknown inputs. Thanks to the descriptor system approach and several algebraic manipulations, we shall establish that the existence of such filters is guaranteed when certain necessary and sufficient conditions are fulfilled. Thereafter, based on the Krasovskii stability theorem, it is shown that the design of such filters is tuned into a feasibility problem of some reduced-order linear matrix inequalities. Finally, we present an illustrative example to show the effectiveness of the obtained results","PeriodicalId":265903,"journal":{"name":"2006 American Control Conference","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123839423","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}
Pub Date : 2006-06-14DOI: 10.1109/ACC.2006.1657487
Jin Wang, Garth Thomas
A model based predictive control (MPC) strategy for nonlinear process systems is presented. The sensitivity between the controlled system input and output is identified in the implementation of this strategy. The comparisons of MPC, gain scheduling control and conventional PID control highlights their consistency as well as differences, and the advantages of the adaptive controller. A decomposed neural network (DNN) model is applied to the MPC scheme. Stability analysis of the MPC system is presented based on Lyapunov theory. From the stability investigation, the stability condition for the DNN-based control system is obtained. Benchmark example results show that the proposed MPC method can effectively control unknown nonlinear systems
{"title":"A model based predictive control scheme for nonlinear process","authors":"Jin Wang, Garth Thomas","doi":"10.1109/ACC.2006.1657487","DOIUrl":"https://doi.org/10.1109/ACC.2006.1657487","url":null,"abstract":"A model based predictive control (MPC) strategy for nonlinear process systems is presented. The sensitivity between the controlled system input and output is identified in the implementation of this strategy. The comparisons of MPC, gain scheduling control and conventional PID control highlights their consistency as well as differences, and the advantages of the adaptive controller. A decomposed neural network (DNN) model is applied to the MPC scheme. Stability analysis of the MPC system is presented based on Lyapunov theory. From the stability investigation, the stability condition for the DNN-based control system is obtained. Benchmark example results show that the proposed MPC method can effectively control unknown nonlinear systems","PeriodicalId":265903,"journal":{"name":"2006 American Control Conference","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123960380","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}
Pub Date : 2006-06-14DOI: 10.1109/ACC.2006.1656416
Anurag Ganguli, J. Cortés, F. Bullo
This paper presents deployment algorithms for multiple mobile robots with line-of-sight sensing and communication capabilities in a simple nonconvex polygonal environment. The objective of the proposed algorithms is to achieve full visibility of the environment. We solve the problem by constructing a novel data structure called the vertex-induced tree and designing schemes to deploy over the nodes of this tree by means of distributed algorithms. The agents are assumed to have access to a local memory and their operation is partially asynchronous
{"title":"Distributed deployment of asynchronous guards in art galleries","authors":"Anurag Ganguli, J. Cortés, F. Bullo","doi":"10.1109/ACC.2006.1656416","DOIUrl":"https://doi.org/10.1109/ACC.2006.1656416","url":null,"abstract":"This paper presents deployment algorithms for multiple mobile robots with line-of-sight sensing and communication capabilities in a simple nonconvex polygonal environment. The objective of the proposed algorithms is to achieve full visibility of the environment. We solve the problem by constructing a novel data structure called the vertex-induced tree and designing schemes to deploy over the nodes of this tree by means of distributed algorithms. The agents are assumed to have access to a local memory and their operation is partially asynchronous","PeriodicalId":265903,"journal":{"name":"2006 American Control Conference","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124119595","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}
Pub Date : 2006-06-14DOI: 10.1109/ACC.2006.1657156
R. Jimenez, L. Alvarez-Icaza
A real-time parameters and state estimation scheme for a shear multi-degree-of-freedom building with a magneto-rheological damper is presented. The design follows standard Lyapunov's theory and exploits the bilinear structure of the mathematical model of the building to construct the adaptation law for the parameters and the observer for the model states. A sufficient condition for stability is given via a linear matrix inequality. The design is illustrated simulations of a small scale three-story building subject to seismic excitation. Results indicate that the observer is able to recover system's state and parameters by using only measurements of the stories acceleration
{"title":"A state observer for a building with a magneto-rheological damper and parameter uncertainty","authors":"R. Jimenez, L. Alvarez-Icaza","doi":"10.1109/ACC.2006.1657156","DOIUrl":"https://doi.org/10.1109/ACC.2006.1657156","url":null,"abstract":"A real-time parameters and state estimation scheme for a shear multi-degree-of-freedom building with a magneto-rheological damper is presented. The design follows standard Lyapunov's theory and exploits the bilinear structure of the mathematical model of the building to construct the adaptation law for the parameters and the observer for the model states. A sufficient condition for stability is given via a linear matrix inequality. The design is illustrated simulations of a small scale three-story building subject to seismic excitation. Results indicate that the observer is able to recover system's state and parameters by using only measurements of the stories acceleration","PeriodicalId":265903,"journal":{"name":"2006 American Control Conference","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123630249","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}
Pub Date : 2006-06-14DOI: 10.1109/ACC.2006.1655323
J. Cortés
This paper studies correctness and robustness properties of motion coordination algorithms with respect to link failures in the network topology. The technical approach relies on computational geometric tools such as proximity graphs, nondeterministic systems defined via set-valued maps and Lyapunov stability analysis. The manuscript provides two general results to help characterize the asymptotic behavior of spatially distributed coordination algorithms. These results are illustrated in rendezvous and flocking coordination algorithms
{"title":"Characterizing robust coordination algorithms via proximity graphs and set-valued maps","authors":"J. Cortés","doi":"10.1109/ACC.2006.1655323","DOIUrl":"https://doi.org/10.1109/ACC.2006.1655323","url":null,"abstract":"This paper studies correctness and robustness properties of motion coordination algorithms with respect to link failures in the network topology. The technical approach relies on computational geometric tools such as proximity graphs, nondeterministic systems defined via set-valued maps and Lyapunov stability analysis. The manuscript provides two general results to help characterize the asymptotic behavior of spatially distributed coordination algorithms. These results are illustrated in rendezvous and flocking coordination algorithms","PeriodicalId":265903,"journal":{"name":"2006 American Control Conference","volume":"36 22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120952770","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}
Pub Date : 2006-06-14DOI: 10.1109/ACC.2006.1655431
M. Lou, E. Jonckheere
The DVD piracy problem is analyzed as a benchmark case study of propagation of potentially sensitive information through the small-world social network and the scale-free Internet. The fundamental mathematical concept is that of a hybrid network, that is, two graphs, one with positive curvature the other with negative curvature, connected with an exchange mechanism. It is shown that this propagation model on a hybrid network matches real traces of DVD piracy. Some anti-piracy measures based on control concepts are suggested
{"title":"Tracking and mitigating piracy","authors":"M. Lou, E. Jonckheere","doi":"10.1109/ACC.2006.1655431","DOIUrl":"https://doi.org/10.1109/ACC.2006.1655431","url":null,"abstract":"The DVD piracy problem is analyzed as a benchmark case study of propagation of potentially sensitive information through the small-world social network and the scale-free Internet. The fundamental mathematical concept is that of a hybrid network, that is, two graphs, one with positive curvature the other with negative curvature, connected with an exchange mechanism. It is shown that this propagation model on a hybrid network matches real traces of DVD piracy. Some anti-piracy measures based on control concepts are suggested","PeriodicalId":265903,"journal":{"name":"2006 American Control Conference","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121407971","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}
Pub Date : 2006-06-14DOI: 10.1109/ACC.2006.1657360
J. V. Helvoort, B. D. Jager, M. Steinbuch
Unfalsified control is a direct data-driven, plant-model-free controller design method, which recursively falsifies controllers that fail to meet the required performance specification, making them ineligible to actually control the plant. In this paper it is shown that sufficient conditions for stability can be derived for unfalsified control with an ellipsoidal unfalsified set, ellipsoidal unfalsified control (EUC), under the mild assumption that there exists at least some region in the original candidate controller pool, which contains controllers that meet the performance specifications. One of these conditions is a finite number of controller switches, which is guaranteed by imposing a maximum volume ratio between two consecutive ellipsoidal unfalsified sets
{"title":"Ellipsoidal unfalsified control: stability","authors":"J. V. Helvoort, B. D. Jager, M. Steinbuch","doi":"10.1109/ACC.2006.1657360","DOIUrl":"https://doi.org/10.1109/ACC.2006.1657360","url":null,"abstract":"Unfalsified control is a direct data-driven, plant-model-free controller design method, which recursively falsifies controllers that fail to meet the required performance specification, making them ineligible to actually control the plant. In this paper it is shown that sufficient conditions for stability can be derived for unfalsified control with an ellipsoidal unfalsified set, ellipsoidal unfalsified control (EUC), under the mild assumption that there exists at least some region in the original candidate controller pool, which contains controllers that meet the performance specifications. One of these conditions is a finite number of controller switches, which is guaranteed by imposing a maximum volume ratio between two consecutive ellipsoidal unfalsified sets","PeriodicalId":265903,"journal":{"name":"2006 American Control Conference","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116269453","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}
Pub Date : 2006-06-14DOI: 10.1109/ACC.2006.1657277
M. Hasan
Algorithms that extract the principal or minor components of a signal are widely used in signal processing and control applications. This paper explores new frameworks for generating learning rules for iteratively computing the principal and minor components (or subspaces) of a given matrix. Stability analysis using Lyapunov theory and La Salle invariance principle is provided to determine regions of attraction of these learning rules. Among many derivations, it is specifically shown that Oja's rule and many variations of it are asymptotically globally stable. Lyapunov stability theory is also applied to weighted learning rules. Some of the essential features for the proposed MCA/PCA learning rules are that they are self normalized and can be applied to non-symmetric matrices. Exact solutions for some nonlinear dynamical systems are also provided
{"title":"Stability analysis of dynamical systems for minor and principal component analysis","authors":"M. Hasan","doi":"10.1109/ACC.2006.1657277","DOIUrl":"https://doi.org/10.1109/ACC.2006.1657277","url":null,"abstract":"Algorithms that extract the principal or minor components of a signal are widely used in signal processing and control applications. This paper explores new frameworks for generating learning rules for iteratively computing the principal and minor components (or subspaces) of a given matrix. Stability analysis using Lyapunov theory and La Salle invariance principle is provided to determine regions of attraction of these learning rules. Among many derivations, it is specifically shown that Oja's rule and many variations of it are asymptotically globally stable. Lyapunov stability theory is also applied to weighted learning rules. Some of the essential features for the proposed MCA/PCA learning rules are that they are self normalized and can be applied to non-symmetric matrices. Exact solutions for some nonlinear dynamical systems are also provided","PeriodicalId":265903,"journal":{"name":"2006 American Control Conference","volume":"189 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116471732","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}
Pub Date : 2006-06-14DOI: 10.1109/ACC.2006.1656378
A. Dutka, H. Javaherian, M. Grimble
Vehicle emissions variations impose significant challenges to the automotive industry. In these simulation studies, nonlinear estimation techniques based on state-dependent and extended Kalman filtering are developed for spark ignition engines to enhance robustness of the feedforward fuel controllers to changes in nominal system parameters and measurement errors. A model-based approach is used to derive the optimal filters. Numerical simulations indicate the superiority of estimation-based approaches to enhance robustness of in-cylinder air estimation which directly contributes to the precision of engine exhaust air-fuel ratio and, consequently the consistency of the tailpipe emissions. The results obtained are for an aggressive driving profile and are presented and discussed
{"title":"State-dependent Kalman filters for robust engine control","authors":"A. Dutka, H. Javaherian, M. Grimble","doi":"10.1109/ACC.2006.1656378","DOIUrl":"https://doi.org/10.1109/ACC.2006.1656378","url":null,"abstract":"Vehicle emissions variations impose significant challenges to the automotive industry. In these simulation studies, nonlinear estimation techniques based on state-dependent and extended Kalman filtering are developed for spark ignition engines to enhance robustness of the feedforward fuel controllers to changes in nominal system parameters and measurement errors. A model-based approach is used to derive the optimal filters. Numerical simulations indicate the superiority of estimation-based approaches to enhance robustness of in-cylinder air estimation which directly contributes to the precision of engine exhaust air-fuel ratio and, consequently the consistency of the tailpipe emissions. The results obtained are for an aggressive driving profile and are presented and discussed","PeriodicalId":265903,"journal":{"name":"2006 American Control Conference","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121498916","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}
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