Pub Date : 2013-12-01DOI: 10.1109/ICOSC.2013.6750889
O. Kuzmych, A. Aitouche, Li Cheng
In this paper, we propose a Control Lyapunov Function based nonlinear robust controller for turbocharged biodiesel engine. A model-based approach has been used which predicts experimentally observed engine performance for biodiesel. The basic idea is to develop inverse optimal control and utilize Lyapunov function in order to achieve good performance. The obtained controller gain guarantees the global convergence of the system and regulates the flows for the Variable Geometry Turbocharger and Exhaust Gas Recirculation systems in order to minimize the NOx emission and smoke of biodiesel engine. Simulation of the control performance shows the effectiveness of this approach.
{"title":"Robust nonlinear control design for turbocharged biodiesel engine","authors":"O. Kuzmych, A. Aitouche, Li Cheng","doi":"10.1109/ICOSC.2013.6750889","DOIUrl":"https://doi.org/10.1109/ICOSC.2013.6750889","url":null,"abstract":"In this paper, we propose a Control Lyapunov Function based nonlinear robust controller for turbocharged biodiesel engine. A model-based approach has been used which predicts experimentally observed engine performance for biodiesel. The basic idea is to develop inverse optimal control and utilize Lyapunov function in order to achieve good performance. The obtained controller gain guarantees the global convergence of the system and regulates the flows for the Variable Geometry Turbocharger and Exhaust Gas Recirculation systems in order to minimize the NOx emission and smoke of biodiesel engine. Simulation of the control performance shows the effectiveness of this approach.","PeriodicalId":199135,"journal":{"name":"3rd International Conference on Systems and Control","volume":"212 0 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134017078","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 : 2013-10-29DOI: 10.1109/ICOSC.2013.6750912
H. Souley Ali, M. Alma, M. Darouach, C. Delattre
This paper proposes a method of designing an unbiased functional observer for each subsystem of a large scale delay discrete-time system. The method uses a rewriting of the observation error to avoid the constraint (due to the interconnection terms) that generally arises in observer design for these systems. The approach that we use to express the observation error permits to use results on stabilization of large scale delay discrete-time systems to solve the problem. The proposed observers are free of the interconnection terms and the observation error are unbiased. Each observer gain is parameterized via a single gain matrix which is computed via LMI. A tractable algorithm permits to compute the proposed observer easily.
{"title":"Design of unbiased functional observers for interconnected discrete-time delay systems","authors":"H. Souley Ali, M. Alma, M. Darouach, C. Delattre","doi":"10.1109/ICOSC.2013.6750912","DOIUrl":"https://doi.org/10.1109/ICOSC.2013.6750912","url":null,"abstract":"This paper proposes a method of designing an unbiased functional observer for each subsystem of a large scale delay discrete-time system. The method uses a rewriting of the observation error to avoid the constraint (due to the interconnection terms) that generally arises in observer design for these systems. The approach that we use to express the observation error permits to use results on stabilization of large scale delay discrete-time systems to solve the problem. The proposed observers are free of the interconnection terms and the observation error are unbiased. Each observer gain is parameterized via a single gain matrix which is computed via LMI. A tractable algorithm permits to compute the proposed observer easily.","PeriodicalId":199135,"journal":{"name":"3rd International Conference on Systems and Control","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126240100","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 : 2013-10-29DOI: 10.1109/ICOSC.2013.6750843
O. Datcu, R. Tauleigne, A. Vlad, J. Barbot
In the '80s Takens formulated the conditions that ensure the capability to reconstruct the dynamics of a transmitter when an observer receives one scalar output from the transmitter. In practical situations, the reconstruction of the original system is strongly influenced by the choice of the variable transmitted over the communication channel. This paper aims to analyze this influence in the context of mathematical singularities occurring in the evolution of the chaotic manifolds used in encryption. We analyze two systems having a chaotic behavior, a discrete system, the Hitzl-Zele map, and a continuous one, the Colpitts oscillator. We show the existence of observability singularities in both cases. The numerical experiments point out that the dynamics of the discrete system falls in these singularities sets, but very infrequently. More surprisingly, the dynamics of the continuous system can not pass through the singularity, which is situated at infinity. But an exponential factor allows the chaotic dynamics to approach the vicinity of the singularity better than 10-7 and that, for about 30% of its duration. The noise inherent in analog signals are much higher than this value, the observation of the system is impossible in practice.
{"title":"Observability-singularity manifolds in the context of chaos based cryptography","authors":"O. Datcu, R. Tauleigne, A. Vlad, J. Barbot","doi":"10.1109/ICOSC.2013.6750843","DOIUrl":"https://doi.org/10.1109/ICOSC.2013.6750843","url":null,"abstract":"In the '80s Takens formulated the conditions that ensure the capability to reconstruct the dynamics of a transmitter when an observer receives one scalar output from the transmitter. In practical situations, the reconstruction of the original system is strongly influenced by the choice of the variable transmitted over the communication channel. This paper aims to analyze this influence in the context of mathematical singularities occurring in the evolution of the chaotic manifolds used in encryption. We analyze two systems having a chaotic behavior, a discrete system, the Hitzl-Zele map, and a continuous one, the Colpitts oscillator. We show the existence of observability singularities in both cases. The numerical experiments point out that the dynamics of the discrete system falls in these singularities sets, but very infrequently. More surprisingly, the dynamics of the continuous system can not pass through the singularity, which is situated at infinity. But an exponential factor allows the chaotic dynamics to approach the vicinity of the singularity better than 10-7 and that, for about 30% of its duration. The noise inherent in analog signals are much higher than this value, the observation of the system is impossible in practice.","PeriodicalId":199135,"journal":{"name":"3rd International Conference on Systems and Control","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124935514","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 : 2013-10-29DOI: 10.1109/ICOSC.2013.6750846
Y. Khaled, J. Barbot, K. Busawon, D. Benmerzouk
In this paper, we show that it is possible to detect the active mode and reconstruct its associated state for a class of hybrid linear systems under sparse measurements. The solution we bring to this problem is firstly to analyze the observability of systems under random sampling and secondly to synthesize an impulsive observer. Here, the first approach is based on the concept of compressive sampling which is well-known in signal processing theory. A synthesis of impulsive observers will be presented for some special cases. These observers allows to detect the active mode and rebuild the state under sparse measurement. Simulation results are provided in order to highlight the well-foundedness of the proposed approach.
{"title":"From restricted isometry property to observability under sparse measurement","authors":"Y. Khaled, J. Barbot, K. Busawon, D. Benmerzouk","doi":"10.1109/ICOSC.2013.6750846","DOIUrl":"https://doi.org/10.1109/ICOSC.2013.6750846","url":null,"abstract":"In this paper, we show that it is possible to detect the active mode and reconstruct its associated state for a class of hybrid linear systems under sparse measurements. The solution we bring to this problem is firstly to analyze the observability of systems under random sampling and secondly to synthesize an impulsive observer. Here, the first approach is based on the concept of compressive sampling which is well-known in signal processing theory. A synthesis of impulsive observers will be presented for some special cases. These observers allows to detect the active mode and rebuild the state under sparse measurement. Simulation results are provided in order to highlight the well-foundedness of the proposed approach.","PeriodicalId":199135,"journal":{"name":"3rd International Conference on Systems and Control","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131084455","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 : 2013-10-29DOI: 10.1109/ICOSC.2013.6750997
L. Etienne, S. Gennaro, J. Barbot
In this paper, we consider a vehicle equipped with active front steer and rear torque vectoring. While the former adds an incremental steer angle to the driver's input, the latter imposes a torque by means of the rear axle. The active front steer control is actuated through the front tires, while the rear torque vectoring can be actuated through the rear tires. A nonlinear controller using the super-twisting algorithm is designed in order to track in finite time lateral and yaw angular velocity references. We consider one estimation method, given in the literature, to estimate the tire-road coefficient, and we design a dynamic controller to estimate the perturbing terms due to the vehicle's mass and inertia variations, and due to the variation of the tire parameters. Comparisons with a simple PI-based controller are done, and some simulation results highlight the advantages of the proposed controller.
{"title":"Active ground vehicle control with use of a super-twisting algorithm in the presence of parameter variations","authors":"L. Etienne, S. Gennaro, J. Barbot","doi":"10.1109/ICOSC.2013.6750997","DOIUrl":"https://doi.org/10.1109/ICOSC.2013.6750997","url":null,"abstract":"In this paper, we consider a vehicle equipped with active front steer and rear torque vectoring. While the former adds an incremental steer angle to the driver's input, the latter imposes a torque by means of the rear axle. The active front steer control is actuated through the front tires, while the rear torque vectoring can be actuated through the rear tires. A nonlinear controller using the super-twisting algorithm is designed in order to track in finite time lateral and yaw angular velocity references. We consider one estimation method, given in the literature, to estimate the tire-road coefficient, and we design a dynamic controller to estimate the perturbing terms due to the vehicle's mass and inertia variations, and due to the variation of the tire parameters. Comparisons with a simple PI-based controller are done, and some simulation results highlight the advantages of the proposed controller.","PeriodicalId":199135,"journal":{"name":"3rd International Conference on Systems and Control","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132625671","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 : 2013-10-29DOI: 10.1109/ICOSC.2013.6750905
M. Zerrougui, L. Boutat-Baddas, M. Darouach
This paper deals with the problem of H∞ observer-based stabilization of a class of nonlinear singular systems. We propose an extension of the results on the observer-based controller design in the case of the standard systems to the case of the nonlinear singular systems. We give a sufficient conditions for the stability of the state feedback controller, and give a closed-loop system with state estimate feedback controller. These last are expressed in terms of strict linear matrix inequalities.
{"title":"H∞ filter based-controller for a class of continuous time nonlinear singular systems","authors":"M. Zerrougui, L. Boutat-Baddas, M. Darouach","doi":"10.1109/ICOSC.2013.6750905","DOIUrl":"https://doi.org/10.1109/ICOSC.2013.6750905","url":null,"abstract":"This paper deals with the problem of H∞ observer-based stabilization of a class of nonlinear singular systems. We propose an extension of the results on the observer-based controller design in the case of the standard systems to the case of the nonlinear singular systems. We give a sufficient conditions for the stability of the state feedback controller, and give a closed-loop system with state estimate feedback controller. These last are expressed in terms of strict linear matrix inequalities.","PeriodicalId":199135,"journal":{"name":"3rd International Conference on Systems and Control","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130503503","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 : 2013-10-01DOI: 10.1109/ICOSC.2013.6750907
Rochdi Bachir Bouyadja, M. Khelfi
This paper deals with the application of a randomized optimization method to obtain the optimum PID gains. This method is based on a heuristic Kalman algorithm (HKA) and is described as more speedy and more accurate optimization methods. First, we introduce the general form of the H∞ control law obtained by solving a partial differential equation labeled Hamilton-Jacobi-Isaacs equation. An analytic solution to this equation is described for the Euler-Lagrange Systems. Second, based on this solution and on the PID control law resulting, it is shown how to use the optimization method to adjust optimally the controller's gains ensuring a minimum L2 - gain and thus disturbance attenuation. Third, we apply this optimization algorithm in the trajectory tracking and disturbance attenuation problem of a three degree of freedom robot manipulator. The simulation results show the effectiveness of the H∞-PID control law optimized by the HKA method.
{"title":"Heuristic kalman algorithm optimization: Application in H∞ - PID controller tuning of Lagrangian system","authors":"Rochdi Bachir Bouyadja, M. Khelfi","doi":"10.1109/ICOSC.2013.6750907","DOIUrl":"https://doi.org/10.1109/ICOSC.2013.6750907","url":null,"abstract":"This paper deals with the application of a randomized optimization method to obtain the optimum PID gains. This method is based on a heuristic Kalman algorithm (HKA) and is described as more speedy and more accurate optimization methods. First, we introduce the general form of the H∞ control law obtained by solving a partial differential equation labeled Hamilton-Jacobi-Isaacs equation. An analytic solution to this equation is described for the Euler-Lagrange Systems. Second, based on this solution and on the PID control law resulting, it is shown how to use the optimization method to adjust optimally the controller's gains ensuring a minimum L2 - gain and thus disturbance attenuation. Third, we apply this optimization algorithm in the trajectory tracking and disturbance attenuation problem of a three degree of freedom robot manipulator. The simulation results show the effectiveness of the H∞-PID control law optimized by the HKA method.","PeriodicalId":199135,"journal":{"name":"3rd International Conference on Systems and Control","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123077451","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 : 2013-10-01DOI: 10.1109/ICOSC.2013.6750828
I. Djelloul, M. Souier, Z. Sari
In this paper, our interest is focused on monitoring in production systems. The motivation behind this investigation is the need of presenting hybrid approach of Neuro-Fuzzy Genetic for the optimal learning, which allows getting the required performance measures. The presence of Neuro- Fuzzy algorithms which may involving elegantly the set of features extraction are defined in terms of membership function, where as Genetic Algorithms are proposed to optimize the set of rules, in order to design supervised classification systems by generating fuzzy if-then rules. The learning process is based on two algorithms: Levenberg-Marquardt (TRAINLM) and Gradient Descent (TRAINGDA). Then, the proposed algorithms performances are verified and analyzed through an industrial application of agro-alimentary unit called AURES dairy for the city of Batna. The simulation results show that the proposed approach performs the best when Levenberg-Marquardt is used as a learning algorithm.
{"title":"Neuro-Fuzzy Genetic Algorithms for monitoring in a production system","authors":"I. Djelloul, M. Souier, Z. Sari","doi":"10.1109/ICOSC.2013.6750828","DOIUrl":"https://doi.org/10.1109/ICOSC.2013.6750828","url":null,"abstract":"In this paper, our interest is focused on monitoring in production systems. The motivation behind this investigation is the need of presenting hybrid approach of Neuro-Fuzzy Genetic for the optimal learning, which allows getting the required performance measures. The presence of Neuro- Fuzzy algorithms which may involving elegantly the set of features extraction are defined in terms of membership function, where as Genetic Algorithms are proposed to optimize the set of rules, in order to design supervised classification systems by generating fuzzy if-then rules. The learning process is based on two algorithms: Levenberg-Marquardt (TRAINLM) and Gradient Descent (TRAINGDA). Then, the proposed algorithms performances are verified and analyzed through an industrial application of agro-alimentary unit called AURES dairy for the city of Batna. The simulation results show that the proposed approach performs the best when Levenberg-Marquardt is used as a learning algorithm.","PeriodicalId":199135,"journal":{"name":"3rd International Conference on Systems and Control","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117052588","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 : 2013-10-01DOI: 10.1109/ICOSC.2013.6750902
M. Benhayoun, A. Benzaouia, F. Mesquine, A. El Hajjaji
This paper deals with the regulator problem for linear discrete-time systems with asymmetric saturations on the control. The main contribution of this work is to extend the available results for symmetrical saturation to the case of unsymmetrical saturation. The results are expressed in term of LMIs. An example is presented to illustrate the obtained results.
{"title":"Stabilization of unsymmetrical saturated discrete-time systems: An LMI approach","authors":"M. Benhayoun, A. Benzaouia, F. Mesquine, A. El Hajjaji","doi":"10.1109/ICOSC.2013.6750902","DOIUrl":"https://doi.org/10.1109/ICOSC.2013.6750902","url":null,"abstract":"This paper deals with the regulator problem for linear discrete-time systems with asymmetric saturations on the control. The main contribution of this work is to extend the available results for symmetrical saturation to the case of unsymmetrical saturation. The results are expressed in term of LMIs. An example is presented to illustrate the obtained results.","PeriodicalId":199135,"journal":{"name":"3rd International Conference on Systems and Control","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117226656","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 : 2013-10-01DOI: 10.1109/ICOSC.2013.6750895
B. Hamane, M. Doumbia, A. Chériti, K. Belmokhtar
Matrix converter is a topology of direct AC-AC conversion converter. It provides a system of variable voltage and frequency from fixed input grid voltage. Therefore, the output of the matric converter is directly affected by unbalanced input grid voltage. Some research works have been made to overcome this problem by using Proportional integral (PI) control. However, PI control has limited performance when it is used in nonlinear systems. Fuzzy logic controller (FLC) has the advantage to control highly nonlinear and difficult to model systems. Therefore, the combination of these two controllers to form a fuzzy supervisory control (FSC) can give better performance to overcome the limitation of PI control in nonlinear systems. In this paper a novel FSC based control method is proposed. The FSC performs closed loop control of the output current to improve the performance of the MC powered by unbalanced grid voltage. The working principle, Venturini modulation strategy of MC and characteristics of FSC are presented. The performance of FSC is tested and compared for balanced and unbalanced grid.
{"title":"Modeling and control of a matrix converter using fuzzy supervisory controller","authors":"B. Hamane, M. Doumbia, A. Chériti, K. Belmokhtar","doi":"10.1109/ICOSC.2013.6750895","DOIUrl":"https://doi.org/10.1109/ICOSC.2013.6750895","url":null,"abstract":"Matrix converter is a topology of direct AC-AC conversion converter. It provides a system of variable voltage and frequency from fixed input grid voltage. Therefore, the output of the matric converter is directly affected by unbalanced input grid voltage. Some research works have been made to overcome this problem by using Proportional integral (PI) control. However, PI control has limited performance when it is used in nonlinear systems. Fuzzy logic controller (FLC) has the advantage to control highly nonlinear and difficult to model systems. Therefore, the combination of these two controllers to form a fuzzy supervisory control (FSC) can give better performance to overcome the limitation of PI control in nonlinear systems. In this paper a novel FSC based control method is proposed. The FSC performs closed loop control of the output current to improve the performance of the MC powered by unbalanced grid voltage. The working principle, Venturini modulation strategy of MC and characteristics of FSC are presented. The performance of FSC is tested and compared for balanced and unbalanced grid.","PeriodicalId":199135,"journal":{"name":"3rd International Conference on Systems and Control","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124900740","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：