An adaptive sliding observer is proposed for position and velocity sensorless control of synchronous motors. Unlike conventional sensorless control methods, which are only applicable for one or two types of synchronous motors, the proposed method is a universal sensorless control for all the three types of synchronous motors. This is because it is based on the newly derived extended electromotive force model, which fuses position information both from the permanent magnet and from the stator inductance. Stability of the proposed observer is guaranteed easily, because it is constructed on a linear model. of the motor. Sliding mode is applied for the current estimation, under which the order of observer's error equation is reduced. This makes the stability analysis easier so that robust position and velocity estimations might be achieved by a proper pole assignment. Simulation results show that the proposed method is very effective.
{"title":"An adaptive sliding observer for sensorless control of synchronous motors","authors":"Zhiqian Chen, M. Tomita, S. Doki, S. Okuma","doi":"10.1109/CCA.2001.973956","DOIUrl":"https://doi.org/10.1109/CCA.2001.973956","url":null,"abstract":"An adaptive sliding observer is proposed for position and velocity sensorless control of synchronous motors. Unlike conventional sensorless control methods, which are only applicable for one or two types of synchronous motors, the proposed method is a universal sensorless control for all the three types of synchronous motors. This is because it is based on the newly derived extended electromotive force model, which fuses position information both from the permanent magnet and from the stator inductance. Stability of the proposed observer is guaranteed easily, because it is constructed on a linear model. of the motor. Sliding mode is applied for the current estimation, under which the order of observer's error equation is reduced. This makes the stability analysis easier so that robust position and velocity estimations might be achieved by a proper pole assignment. Simulation results show that the proposed method is very effective.","PeriodicalId":365390,"journal":{"name":"Proceedings of the 2001 IEEE International Conference on Control Applications (CCA'01) (Cat. No.01CH37204)","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114254476","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}
G. Fernández‐Anaya, J. González-Trejo, A. Flores‐Tlacuahuac
We obtain results that establish sufficient conditions for simultaneous stabilization using interpolated controllers for plants with variable operating conditions, under nonlinear perturbations in their parameters. These results generalize previous results for interpolated controllers. Based on these results we present an application to tracking closed-loop control of a continuous stirred tank reactor, where a single exothermic reaction takes place. A comparison with simple PI controllers is made.
{"title":"Stabilization with interpolated controllers: application to the tracking control of a continuous stirred tank reactor","authors":"G. Fernández‐Anaya, J. González-Trejo, A. Flores‐Tlacuahuac","doi":"10.1109/CCA.2001.974008","DOIUrl":"https://doi.org/10.1109/CCA.2001.974008","url":null,"abstract":"We obtain results that establish sufficient conditions for simultaneous stabilization using interpolated controllers for plants with variable operating conditions, under nonlinear perturbations in their parameters. These results generalize previous results for interpolated controllers. Based on these results we present an application to tracking closed-loop control of a continuous stirred tank reactor, where a single exothermic reaction takes place. A comparison with simple PI controllers is made.","PeriodicalId":365390,"journal":{"name":"Proceedings of the 2001 IEEE International Conference on Control Applications (CCA'01) (Cat. No.01CH37204)","volume":"301 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114583213","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}
A fast, efficient, and novel way of online training of dynamic neural networks is presented in this paper. The method is based on a combination of recursive least-squares and backpropagation; in a large number of cases, backpropagation can be avoided altogether. The proposed method would be suitable for real-time identification, fault detection, and control of uncertain dynamic systems.
{"title":"A novel method for online training of dynamic neural networks","authors":"F. Chowdhury","doi":"10.1109/CCA.2001.973857","DOIUrl":"https://doi.org/10.1109/CCA.2001.973857","url":null,"abstract":"A fast, efficient, and novel way of online training of dynamic neural networks is presented in this paper. The method is based on a combination of recursive least-squares and backpropagation; in a large number of cases, backpropagation can be avoided altogether. The proposed method would be suitable for real-time identification, fault detection, and control of uncertain dynamic systems.","PeriodicalId":365390,"journal":{"name":"Proceedings of the 2001 IEEE International Conference on Control Applications (CCA'01) (Cat. No.01CH37204)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128203688","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}
This paper proposes a competitive Takagi-Sugeno fuzzy reinforcement learning network (CTSFRLN) for solving complicated learning tasks of continuous domains. The proposed CTSFRLN is constructed by combining Takagi-Sugeno type fuzzy inference systems with action-value-based reinforcement learning methods. The architecture of CTSFRLN is described and a fitting exploration strategy, i.e., max-min Boltzmann exploration, is developed to implement local competitions in rule consequents. Three competitive learning algorithms are derived, including the competitive Takagi-Sugeno fuzzy Q-learning, competitive Takagi-Sugeno fuzzy R-learning, and competitive Takagi-Sugeno fuzzy advantage learning. These learning methods lead to the so called Takagi-Sugeno fuzzy variable structure controller. Experiments on the double inverted pendulum system demonstrate the performance and applicability of the proposed schemes. The superiority of these methods with respect to other related reinforcement learning ones is also illustrated. Finally, the conclusion remark is drawn.
{"title":"Competitive Takagi-Sugeno fuzzy reinforcement learning","authors":"X.W. Yan, Z. Deng, Z. Sun","doi":"10.1109/CCA.2001.973980","DOIUrl":"https://doi.org/10.1109/CCA.2001.973980","url":null,"abstract":"This paper proposes a competitive Takagi-Sugeno fuzzy reinforcement learning network (CTSFRLN) for solving complicated learning tasks of continuous domains. The proposed CTSFRLN is constructed by combining Takagi-Sugeno type fuzzy inference systems with action-value-based reinforcement learning methods. The architecture of CTSFRLN is described and a fitting exploration strategy, i.e., max-min Boltzmann exploration, is developed to implement local competitions in rule consequents. Three competitive learning algorithms are derived, including the competitive Takagi-Sugeno fuzzy Q-learning, competitive Takagi-Sugeno fuzzy R-learning, and competitive Takagi-Sugeno fuzzy advantage learning. These learning methods lead to the so called Takagi-Sugeno fuzzy variable structure controller. Experiments on the double inverted pendulum system demonstrate the performance and applicability of the proposed schemes. The superiority of these methods with respect to other related reinforcement learning ones is also illustrated. Finally, the conclusion remark is drawn.","PeriodicalId":365390,"journal":{"name":"Proceedings of the 2001 IEEE International Conference on Control Applications (CCA'01) (Cat. No.01CH37204)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128270632","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}
This paper studies the stability of a class of PID controller to stabilize robot manipulators with elastic joints. It is shown that a PD control action on the rotor position and an I action on the link position suffices to provide semiglobal asymptotic stability of the desired link position.
{"title":"Robust PID control for robots manipulators with elastic joints","authors":"J. Alavarez-Ramirezi, I. Cervantes, R. Bautista","doi":"10.1109/CCA.2001.973923","DOIUrl":"https://doi.org/10.1109/CCA.2001.973923","url":null,"abstract":"This paper studies the stability of a class of PID controller to stabilize robot manipulators with elastic joints. It is shown that a PD control action on the rotor position and an I action on the link position suffices to provide semiglobal asymptotic stability of the desired link position.","PeriodicalId":365390,"journal":{"name":"Proceedings of the 2001 IEEE International Conference on Control Applications (CCA'01) (Cat. No.01CH37204)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128549647","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}
In this paper, we develop a nonlinear noninteracting control system for temperature and relative humidity in a thermal-space conditioned by a variable-air-volume (VAV) heating, ventilating, and air conditioning (HVAC) system. In some industrial processes it is desirable to be able to control temperature and relative humidity independently and accurately. When the controller does not take into account the coupling dynamics between these variables, it is impossible to set one without affecting the other, therefore the importance of decoupling techniques to achieve accurate control. We demonstrate how decoupled control of temperature and relative humidity is possible using a multivariable cascade control with two loops. The inner-loop is the noninteracting control law used for decoupling, and the outer-loop is a PD controller used for stabilization and control. Simulations are presented at the end of the paper in order to validate the theoretical results.
{"title":"Decoupled control of temperature and relative humidity using a variable-air-volume HVAC system and non-interacting control","authors":"C. Rentel-Gómez, M. Velez-Reyes","doi":"10.1109/CCA.2001.974026","DOIUrl":"https://doi.org/10.1109/CCA.2001.974026","url":null,"abstract":"In this paper, we develop a nonlinear noninteracting control system for temperature and relative humidity in a thermal-space conditioned by a variable-air-volume (VAV) heating, ventilating, and air conditioning (HVAC) system. In some industrial processes it is desirable to be able to control temperature and relative humidity independently and accurately. When the controller does not take into account the coupling dynamics between these variables, it is impossible to set one without affecting the other, therefore the importance of decoupling techniques to achieve accurate control. We demonstrate how decoupled control of temperature and relative humidity is possible using a multivariable cascade control with two loops. The inner-loop is the noninteracting control law used for decoupling, and the outer-loop is a PD controller used for stabilization and control. Simulations are presented at the end of the paper in order to validate the theoretical results.","PeriodicalId":365390,"journal":{"name":"Proceedings of the 2001 IEEE International Conference on Control Applications (CCA'01) (Cat. No.01CH37204)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130301682","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}
L. Acosta, M. Sigut, J. A. Méndez, A. Hamilton, G. N. Marichal, S. Torres, L. Moreno
The goal of this paper is to provide an overview of the studies that have been done with the aim of finding a controller that solves the noise rejection problem in the 10m diameter primary mirror of the Grantecan Telescope. In the first place, a method for decoupling the dynamics of this large-scale MIMO system is presented. A change of basis makes the decoupling possible, becoming an important result for control purposes. In addition to this, the possibility of making tests with a scale model of the mirror is specially interesting thanks to the decoupling. Secondly, this scale model is described and its dynamic identified using an ARMAX model. Finally, a discussion about the design of a controller for low-frequency noise rejection in the scale model's segments and the results obtained are presented.
{"title":"Rejecting the low-frequency noise in the 10m diameter primary mirror of the GRANTECAN telescope","authors":"L. Acosta, M. Sigut, J. A. Méndez, A. Hamilton, G. N. Marichal, S. Torres, L. Moreno","doi":"10.1109/CCA.2001.974001","DOIUrl":"https://doi.org/10.1109/CCA.2001.974001","url":null,"abstract":"The goal of this paper is to provide an overview of the studies that have been done with the aim of finding a controller that solves the noise rejection problem in the 10m diameter primary mirror of the Grantecan Telescope. In the first place, a method for decoupling the dynamics of this large-scale MIMO system is presented. A change of basis makes the decoupling possible, becoming an important result for control purposes. In addition to this, the possibility of making tests with a scale model of the mirror is specially interesting thanks to the decoupling. Secondly, this scale model is described and its dynamic identified using an ARMAX model. Finally, a discussion about the design of a controller for low-frequency noise rejection in the scale model's segments and the results obtained are presented.","PeriodicalId":365390,"journal":{"name":"Proceedings of the 2001 IEEE International Conference on Control Applications (CCA'01) (Cat. No.01CH37204)","volume":"135 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127552826","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}
This paper presents a theoretical framework for linearization and stabilization of second-order nonholonomic chained systems. By giving a new criterion for the problem of nonsmooth nonregular feedback linearization, it is proved that second-order chained systems are nonregular static state feedback linearizable. A discontinuous control law is obtained based on linear system theory and the inversion technique. Simulation studies are carried out to show the effectiveness of the approach.
{"title":"Feedback linearization and discontinuous control of second-order nonholonomic chained systems","authors":"S. S. Ge, Z. Sun, T.H. Lee, M. Spong","doi":"10.1109/CCA.2001.973999","DOIUrl":"https://doi.org/10.1109/CCA.2001.973999","url":null,"abstract":"This paper presents a theoretical framework for linearization and stabilization of second-order nonholonomic chained systems. By giving a new criterion for the problem of nonsmooth nonregular feedback linearization, it is proved that second-order chained systems are nonregular static state feedback linearizable. A discontinuous control law is obtained based on linear system theory and the inversion technique. Simulation studies are carried out to show the effectiveness of the approach.","PeriodicalId":365390,"journal":{"name":"Proceedings of the 2001 IEEE International Conference on Control Applications (CCA'01) (Cat. No.01CH37204)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115811321","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}
In this paper, an original approach for robust fault detection and diagnosis (RFDD) is presented. We propose a method that makes use of H/sub 2/ and H/sub /spl infin// polynomial estimators to elaborate a RFDD procedure. The system considered is linear, stochastic and subject to noise, unknown inputs and uncertainties. The residual is obtained via factorization approach and then parameterized by H/sub 2/ and H/sub /spl infin// polynomial estimators to generate optimal robust fault detectors (ORFD). Adaptive thresholds are also derived with respect to an evaluation index. The results are illustrated by simulations on an actual rolling system.
{"title":"An approach to optimally robust fault detection and diagnosis","authors":"M. Nazih, V. Michel","doi":"10.1109/CCA.2001.973844","DOIUrl":"https://doi.org/10.1109/CCA.2001.973844","url":null,"abstract":"In this paper, an original approach for robust fault detection and diagnosis (RFDD) is presented. We propose a method that makes use of H/sub 2/ and H/sub /spl infin// polynomial estimators to elaborate a RFDD procedure. The system considered is linear, stochastic and subject to noise, unknown inputs and uncertainties. The residual is obtained via factorization approach and then parameterized by H/sub 2/ and H/sub /spl infin// polynomial estimators to generate optimal robust fault detectors (ORFD). Adaptive thresholds are also derived with respect to an evaluation index. The results are illustrated by simulations on an actual rolling system.","PeriodicalId":365390,"journal":{"name":"Proceedings of the 2001 IEEE International Conference on Control Applications (CCA'01) (Cat. No.01CH37204)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130108417","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}
D. U. Campos‐Delgado, D. Allgood, K. Zhou, S. Acharya
This paper presents an implementation of identification and acoustic control of thermoacoustic instabilities on a swirl-stabilized spray combustor. Loudspeakers located upstream of the burner were used as control actuators in the closed-loop system. Experimental models of the combustor dynamics were developed using a non-parametric identification method. LQG and H/sub /spl infin// Loop-Shaping controllers were derived and tested in simulation as well as experimentally.
{"title":"Identification and active control of thermoacoustic instabilities","authors":"D. U. Campos‐Delgado, D. Allgood, K. Zhou, S. Acharya","doi":"10.1109/CCA.2001.973869","DOIUrl":"https://doi.org/10.1109/CCA.2001.973869","url":null,"abstract":"This paper presents an implementation of identification and acoustic control of thermoacoustic instabilities on a swirl-stabilized spray combustor. Loudspeakers located upstream of the burner were used as control actuators in the closed-loop system. Experimental models of the combustor dynamics were developed using a non-parametric identification method. LQG and H/sub /spl infin// Loop-Shaping controllers were derived and tested in simulation as well as experimentally.","PeriodicalId":365390,"journal":{"name":"Proceedings of the 2001 IEEE International Conference on Control Applications (CCA'01) (Cat. No.01CH37204)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133887581","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：