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Proceedings of IEEE International Conference on Control and Applications最新文献

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A knowledge-based approach to dead-time estimation for process control, with real-time application to a coupled-tank system 一种基于知识的过程控制死区估计方法，并实时应用于耦合储罐系统
Proceedings of IEEE International Conference on Control and Applications Pub Date : 1993-09-13 DOI: 10.1109/CCA.1993.348251
T. Lee, Q. Wang, K. Tan, S. Nungam
{"title":"A knowledge-based approach to dead-time estimation for process control, with real-time application to a coupled-tank system","authors":"T. Lee, Q. Wang, K. Tan, S. Nungam","doi":"10.1109/CCA.1993.348251","DOIUrl":"https://doi.org/10.1109/CCA.1993.348251","url":null,"abstract":"Knowledge-based approaches are increasingly becoming widespread in process control engineering as they provide a more comprehensive approach to industrial control than the traditional methods based entirely on algorithmic methods. In fact, it is more common now to view algorithmic methods as simply a component of a more comprehensive knowledge-based strategy. In this paper, we consider the development of a knowledge-based approach to provide an estimation procedure for the dead-time in industrial processes. This development forms a module within a larger project for development of an intelligent knowledge-based process controller.<<ETX>>","PeriodicalId":276779,"journal":{"name":"Proceedings of IEEE International Conference on Control and Applications","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121235117","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: 3
Fuzzy precompensation of PID controllers PID控制器的模糊预补偿
Proceedings of IEEE International Conference on Control and Applications Pub Date : 1993-09-13 DOI: 10.1109/CCA.1993.348284
Jong-Hwan Kim, Seon-Woo Lee, Kwang-Choon Kim, E. Chong
{"title":"Fuzzy precompensation of PID controllers","authors":"Jong-Hwan Kim, Seon-Woo Lee, Kwang-Choon Kim, E. Chong","doi":"10.1109/CCA.1993.348284","DOIUrl":"https://doi.org/10.1109/CCA.1993.348284","url":null,"abstract":"While PID controllers are widely used in industrial applications, they exhibit poor performance when applied to systems containing unknown nonlinearities, such as deadzones, saturation, and hysteresis. In this paper, we propose a fuzzy logic-based precompensation approach for PID controllers. We demonstrate the performance of our scheme via experiments performed on a DC servomotor position control testbed under varying load conditions. Our results show that the fuzzy precompensated PID controller has superior performance compared to conventional PID controllers. In addition, the proposed scheme is robust to variations in load. In our experimental testbed the variations in loading conditions correspond to variations in the level of nonlinearities in the plant. Our scheme is easily implemented in practice simply by adding a fuzzy precompensator to an existing PID controller.<<ETX>>","PeriodicalId":276779,"journal":{"name":"Proceedings of IEEE International Conference on Control and Applications","volume":"255 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121324260","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: 15
Near-optimum regulator for discrete weakly coupled systems with prescribed degree of stability 具有规定稳定度的离散弱耦合系统的近最优调节器
Proceedings of IEEE International Conference on Control and Applications Pub Date : 1993-09-13 DOI: 10.1109/CCA.1993.348357
Xuemin Shen, V. Gourishankar, M. Rao
{"title":"Near-optimum regulator for discrete weakly coupled systems with prescribed degree of stability","authors":"Xuemin Shen, V. Gourishankar, M. Rao","doi":"10.1109/CCA.1993.348357","DOIUrl":"https://doi.org/10.1109/CCA.1993.348357","url":null,"abstract":"Presents a new approach in the study of the linear-quadratic control problem of weakly coupled discrete systems with a prescribed degree of stability. All the poles of the resulting closed-loop system are constrained to lie inside a circle with the radius of 1//spl alpha/, where /spl alpha/>1. A bilinear transformation is used so that the near-optimum controller design can be carried out in terms of a continuous time reduced-order problem. The method is very suitable for parallel programming. A numerical example demonstrates the efficiency of the proposed method.<<ETX>>","PeriodicalId":276779,"journal":{"name":"Proceedings of IEEE International Conference on Control and Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129211030","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: 0
Discrete-time robust controller for load frequency control of power systems 电力系统负荷频率控制的离散鲁棒控制器
Proceedings of IEEE International Conference on Control and Applications Pub Date : 1993-09-13 DOI: 10.1109/CCA.1993.348218
Youyi Wang, R. Zhou, Wei Kai Chua, F.S.M. Fong
{"title":"Discrete-time robust controller for load frequency control of power systems","authors":"Youyi Wang, R. Zhou, Wei Kai Chua, F.S.M. Fong","doi":"10.1109/CCA.1993.348218","DOIUrl":"https://doi.org/10.1109/CCA.1993.348218","url":null,"abstract":"In this paper, a discrete-time version of a robust controller, based on the standard Riccati equation approach, is proposed for power system load-frequency control with system parametric uncertainties. The variation bounds of the system parameters are obtained by changing parameters by 30% to 50% simultaneously from their typical values. The controller design procedure is given. The proposed discrete-time robust controller can ensure that the overall mixed system is asymptotically stable for all admissible uncertainties and can achieve satisfactory performance even in the presence of the generation-rate constraint.<<ETX>>","PeriodicalId":276779,"journal":{"name":"Proceedings of IEEE International Conference on Control and Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129349245","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: 13
A multirate sampled-data chemical reactor system control using a parameter plane method 多速率采样数据化学反应器系统的参数平面控制
Proceedings of IEEE International Conference on Control and Applications Pub Date : 1993-09-13 DOI: 10.1109/CCA.1993.348299
Jiann-Shiou Yang
{"title":"A multirate sampled-data chemical reactor system control using a parameter plane method","authors":"Jiann-Shiou Yang","doi":"10.1109/CCA.1993.348299","DOIUrl":"https://doi.org/10.1109/CCA.1993.348299","url":null,"abstract":"Considers the control of a two-tank chemical reactor system with multirate sampling using a parameter plane method. A PID controller with a \"slow-fast\" multirate scheme is used for the chemical reactor system. Based on two related stability equations and using the PID gains as the adjustable parameters, the set of all possible PID gains to maintain the chemical reactor system's stability, and at the same time, to make the system have a specified gain margin, phase margin, damping ratio, and damping factor is determined. The effects of multirate sampling on the set of PID gains satisfying the specifications are also examined.<<ETX>>","PeriodicalId":276779,"journal":{"name":"Proceedings of IEEE International Conference on Control and Applications","volume":"2598 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128835647","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: 0
Model reference adaptive systems with fuzzy logic controllers 用模糊逻辑控制器建模参考自适应系统
Proceedings of IEEE International Conference on Control and Applications Pub Date : 1993-09-13 DOI: 10.1109/CCA.1993.348286
C. Behmenburg
{"title":"Model reference adaptive systems with fuzzy logic controllers","authors":"C. Behmenburg","doi":"10.1109/CCA.1993.348286","DOIUrl":"https://doi.org/10.1109/CCA.1993.348286","url":null,"abstract":"In this paper methods for adapting conventional controllers are used to adapt a fuzzy logic controller (FLC). The FLC and the plant should follow a desired trajectory which is given by a reference model. The parameters of the FLC are adapted by using a method known as model reference. Because FLCs are in general used for analytically unknown or little known plants the model reference approach must be modified. The adjustment algorithm is divided into two parts: 1) A controller output to yield model following is computed using an inverse plant model. If no analytical description of the plant exists a newly defined gradient model will be used which needs only little information about the plant. 2) The desired output of the FLC is obtained by using a gradient approach to adapt the parameters of the FLC. Simulation studies show the effectiveness of the this algorithm. Furthermore first experimental results for a hydraulic cylinder are presented.<<ETX>>","PeriodicalId":276779,"journal":{"name":"Proceedings of IEEE International Conference on Control and Applications","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115632798","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: 9
Robust fault detection in nonlinear systems using sliding mode observers 基于滑模观测器的非线性系统鲁棒故障检测
Proceedings of IEEE International Conference on Control and Applications Pub Date : 1993-09-13 DOI: 10.1109/CCA.1993.348319
R. Sreedhar, B. Fernández, G. Y. Masada
{"title":"Robust fault detection in nonlinear systems using sliding mode observers","authors":"R. Sreedhar, B. Fernández, G. Y. Masada","doi":"10.1109/CCA.1993.348319","DOIUrl":"https://doi.org/10.1109/CCA.1993.348319","url":null,"abstract":"A model-based scheme for robust detection and isolation of faults in a twin continuously-stirred tank reactor is presented. The scheme uses sliding mode observers for robust fault detection in the presence of parameter uncertainties in the system model. The fault detection and isolation scheme is validated by simulated faults in the sensors, actuators and plant operating parameters. The fault detection and isolation technique based on sliding mode observers is shown to be robust to parameter uncertainty in the model. The technique also provides a method for estimating the parameter error in the system.<<ETX>>","PeriodicalId":276779,"journal":{"name":"Proceedings of IEEE International Conference on Control and Applications","volume":"42 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114123321","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: 129
Nonlinear dynamics and control of orbiting structures: an approach with applications 轨道结构的非线性动力学与控制:一种应用方法
Proceedings of IEEE International Conference on Control and Applications Pub Date : 1993-09-13 DOI: 10.1109/CCA.1993.348315
V. Modi, A. Ng, F. Karray
{"title":"Nonlinear dynamics and control of orbiting structures: an approach with applications","authors":"V. Modi, A. Ng, F. Karray","doi":"10.1109/CCA.1993.348315","DOIUrl":"https://doi.org/10.1109/CCA.1993.348315","url":null,"abstract":"A relatively general Lagrangian formulation for studying the nonlinear dynamics of spacecraft with interconnected flexible members in a tree-type topology is developed. The governing equations of motion are coupled, nonlinear, and nonautonomous; hence, nonlinear control, based on the Feedback Linearization Technique (FLT), is incorporated. Versatility of the formulation is illustrated through dynamical studies of the multipurpose telecommunications satellite, Indian Satellite II(INSAT-II) and Space Station based two-link Mobile Servicing System (MSS). The uncontrolled dynamics of the INSAT-II shows that the flexible spacecraft to be in an inherently unstable equilibrium orientation. Control, based on the FLT, is then applied to restore the desired attitude of the spacecraft. The performance of the MSS undergoing inplane and out-of-plane slewing maneuvers is compared. Results indicate that, in absence of control, the maneuvers induce vibration of the links as well as undesirable librational motion of the Space Station. Control is next applied to the Space Station. Once the altitude of the Space Station is controlled, the performance of the MSS improves significantly.<<ETX>>","PeriodicalId":276779,"journal":{"name":"Proceedings of IEEE International Conference on Control and Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114748020","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: 2
Recent advances in cross machine profile control using modern estimation and control technology 利用现代估计和控制技术进行跨机轮廓控制的最新进展
Proceedings of IEEE International Conference on Control and Applications Pub Date : 1993-09-13 DOI: 10.1109/CCA.1993.348279
E.M. Heaven, I. Jonsson, T.M. Kean, M. A. Manness, R.N. Vyse
{"title":"Recent advances in cross machine profile control using modern estimation and control technology","authors":"E.M. Heaven, I. Jonsson, T.M. Kean, M. A. Manness, R.N. Vyse","doi":"10.1109/CCA.1993.348279","DOIUrl":"https://doi.org/10.1109/CCA.1993.348279","url":null,"abstract":"Control of paper variation in the cross machine direction has become a necessary requirement to meet increasing quality demands. Traditional approaches to the control of weight, moisture and caliper have realized good reductions in paper profile variability using relatively simple control technology. Advances in computer technology have provided the platform to implement the next generation of cross-machine controls using modern estimation, modelling and control technology. This paper describes the development of an advanced cross-machine control system using state estimation, system identification, multivariable modelling and control and summarizes the results of implementing the system on a modern newsprint machine.<<ETX>>","PeriodicalId":276779,"journal":{"name":"Proceedings of IEEE International Conference on Control and Applications","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125613921","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: 3
Industrial application of an H/spl infin/ design method for flexible structures 柔性结构H/spl设计方法的工业应用
Proceedings of IEEE International Conference on Control and Applications Pub Date : 1993-09-13 DOI: 10.1109/CCA.1993.348223
P. Coustal, J. Michelin
{"title":"Industrial application of an H/spl infin/ design method for flexible structures","authors":"P. Coustal, J. Michelin","doi":"10.1109/CCA.1993.348223","DOIUrl":"https://doi.org/10.1109/CCA.1993.348223","url":null,"abstract":"This paper presents an industrial application developed by Sfim Industries Ets d'Asnieres to a helicopter sight system stabilization. The H/spl infin/ synthesis of robust controller for flexible structures is presented. Penalizing the closed loop regulation function G(1+KG)/sup -1/ allows one to avoid pole cancellations and to damp some flexible modes without increasing the regulator order. This approach is reminiscent of the idea of positivity. The stability margin is ensured by the H/spl infin/ standard W3 weighting function which also handles the roll-off behaviour. Experimental results obtained show the efficiency of this approach in the case of sight system flexible structure in comparison with classical PID based regulation.<<ETX>>","PeriodicalId":276779,"journal":{"name":"Proceedings of IEEE International Conference on Control and Applications","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126920991","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: 10
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