{"title":"Design of decoupling active noise control systems","authors":"F. Taringoo, J. Poshtan, A. Nasiri, M. Kahaei","doi":"10.1142/S0218126606003337","DOIUrl":"https://doi.org/10.1142/S0218126606003337","url":null,"abstract":"In this paper a simple method for multichannel active noise control is introduced. The proposed structure is a combination of an adaptive FIR filter, based on the FXLMS algorithm, and the ALIGN algorithm resulting in decoupling matrix for secondary path transfer function. This structure converts a multi-channel ANC system to decoupled systems which results reduction in computational load without affecting the convergence behavior of the FXLMS system.","PeriodicalId":169932,"journal":{"name":"2004 5th Asian Control Conference (IEEE Cat. No.04EX904)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134182077","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}
{"title":"The modeling and application of cost prediction based on neural network","authors":"X. Huang, Jiansheng Xue, Liju Dong","doi":"10.1007/11427469_149","DOIUrl":"https://doi.org/10.1007/11427469_149","url":null,"abstract":"","PeriodicalId":169932,"journal":{"name":"2004 5th Asian Control Conference (IEEE Cat. No.04EX904)","volume":"13 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113932752","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}
{"title":"Output feedback sliding mode control for nonminimum phase systems with nonlinear disturbances","authors":"Xing-gang Yan, Christopher Edwards *, S. Spurgeon","doi":"10.1080/00207170412331317440","DOIUrl":"https://doi.org/10.1080/00207170412331317440","url":null,"abstract":"In this paper, robust stabilization for a class of systems with a nonlinear disturbance is considered. The nonlinear disturbance is mismatched with a nonlinear bound and the nominal system is allowed to be nonminimum phase. A dynamical compensator is designed to estimate the system state and a sliding surface, in the augmented space formed by the system output and the estimated state, is proposed. The stability of the corresponding sliding mode is analysed using the equivalent control approach. Based on the estimated state variables and system output, a variable structure control scheme is developed such that the system is driven to the sliding surface and maintained on it thereafter. Finally, a simulation study of a nonminimum phase HIRM aircraft model is presented to illustrate the effectiveness of the results.","PeriodicalId":169932,"journal":{"name":"2004 5th Asian Control Conference (IEEE Cat. No.04EX904)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125557866","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}
{"title":"Robustness analysis and feedback stabilization of uncertain singular systems","authors":"Dianhui Wang, R. Yu","doi":"10.1109/ASCC.2004.184981;","DOIUrl":"https://doi.org/10.1109/ASCC.2004.184981;","url":null,"abstract":"This paper studies complete stability robustness and feedback stabilization problem for uncertain singular systems. New perturbation upper bound that ensures the perturbed singular system remains completely stable (impulse-free and asymptotically stable) is derived. Analysis and examples show that the present result is less conservative than the previous ones. Based on an algorithm for eigenstructure assignment, a procedure to construct a state feedback matrix that maximizes the complete stability robustness bound of the closed-loop system is presented.","PeriodicalId":169932,"journal":{"name":"2004 5th Asian Control Conference (IEEE Cat. No.04EX904)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133461197","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}
{"title":"Set point response and disturbance rejection tradeoff for second-order plus dead time processes","authors":"Juan Shi, W. S. Lee","doi":"10.1109/ASCC.2004.184980","DOIUrl":"https://doi.org/10.1109/ASCC.2004.184980","url":null,"abstract":"In this paper, we shall present simple and effective tuning formulas for IMC controllers when they are applied to second-order plus dead-time processes (SOPDT). We have discovered that for controllers designed by applying IMC method, the proportional gain, the integral gain, the derivative gain of the PID part of the controller and an associate filter should all be modified according to the given formulas for the purpose of achieving set-point response and disturbance rejection tradeoff. The study has also shown that the tradeoff between set point response and disturbance rejection is limited by normalised dead time of the SOPDT processes for the simple pole cases.","PeriodicalId":169932,"journal":{"name":"2004 5th Asian Control Conference (IEEE Cat. No.04EX904)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121310499","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}
{"title":"Process control: potential benefits and wasted opportunities","authors":"M. Brisk","doi":"10.1080/1448837X.2005.11464113","DOIUrl":"https://doi.org/10.1080/1448837X.2005.11464113","url":null,"abstract":"Seventeen years ago the University of Sydney Warren Centre's study demonstrated that introducing advanced control systems could potentially provide bottom-line benefits in the range of two to six percent of operating costs. Since then the process industry world-wide has reported many successful applications of a range of advanced control technologies which achieved, or exceeded, those benefits. There are now a plethora of multivariable predictive controls, inferential sensors, dynamic modelling tools, fuzzy logic algorithms, and neural networks, and we know how to use them. So does it follow that industry is consistently achieving the best possible process control performance and realizing all those potential benefits? The answer, unfortunately, is a depressing no! Recent studies have shown that only about a third of industrial controllers are achieving acceptable levels of performance, and this is especially true at the most basic levels of control, needed to underpin the advanced controls. Indeed, there are reported trends which suggest the gap between desired and actual controller performance is widening! This paper revisits the Warren Centre study and its benefits analysis methodology, and addresses the issues of actually achieving those benefits. This is shown to be more than just the introduction of advanced control technology. There is a need to re-focus on the humble - but vital PID controller, and the often overlooked issue of ensuring continued maintenance of the best performance of existing controls, if industry is to stop wasting the opportunities to gain those benefits.","PeriodicalId":169932,"journal":{"name":"2004 5th Asian Control Conference (IEEE Cat. No.04EX904)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115130767","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}
{"title":"Input-to-state stability for parameterized discrete-time time-varying nonlinear systems with applications","authors":"D. S. Laila, A. Astolfi","doi":"10.1109/ASCC.2004.184778","DOIUrl":"https://doi.org/10.1109/ASCC.2004.184778","url":null,"abstract":"Input-to-state stability (ISS) of a parameterized family of discrete-time time-varying nonlinear systems is investigated. A converse Lyapunov theorem for such systems is developed. We consider parameterized families of discrete-time systems and concentrate on a semiglobal practical property that naturally arises when an approximate discrete-time model is used to design a controller for a sampled-data system. Application of our main result to time-varying periodic systems is presented. This is then used to design a semiglobal practical ISS (SP-ISS) control law for the model of a wheeled mobile robot.","PeriodicalId":169932,"journal":{"name":"2004 5th Asian Control Conference (IEEE Cat. No.04EX904)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130985973","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. Numsomran, K. Witheephanich, T. Trisuwannawat, K. Tirasesth
{"title":"I-P controller design for quadruple tank system","authors":"A. Numsomran, K. Witheephanich, T. Trisuwannawat, K. Tirasesth","doi":"10.1109/TENCON.2004.1414972","DOIUrl":"https://doi.org/10.1109/TENCON.2004.1414972","url":null,"abstract":"A control system design with coefficient diagram method (CDM) is proven that effective for SISO control design. But the control system design for TITO via CDM is not concrete procedure. In this paper presents the control system design method for quadruple-tank process via CDM. By using the decentralized method for both non-minimum phase and minimum phase are made. The results from integral-proportional (I-P) controller's design via CDM and standard proportional-integral (PI) controls are also shown to compare the merits of the proposed controllers.","PeriodicalId":169932,"journal":{"name":"2004 5th Asian Control Conference (IEEE Cat. No.04EX904)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124204751","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}
{"title":"Friction and nonlinearity compensation in hard disk drive servo systems using robust composite nonlinear feedback control","authors":"K. Peng, Ben M. Chen, Guoyang Cheng, T. H. Lee","doi":"10.1080/1448837X.2005.11464117","DOIUrl":"https://doi.org/10.1080/1448837X.2005.11464117","url":null,"abstract":"This paper presents design of hard disk drive (HDD) servo systems using an enhanced composite nonlinear feedback (CNF) control technique with a simple friction and nonlinearity compensation scheme. Friction and nonlinearity result in large residual errors and deteriorate the performance of head positioning of HDD servo systems. The enhanced CNF technique has a feature of removing the uncompensated portion of friction and nonlinearity without sacrificing the overall tracking performance. Simulation and experimental results for the servo design show that our approach is very effective arid successful. In particular, our experimental results show that the enhanced CNF control has outperformed the conventional PID control in settling time. This approach can be adopted to solve other servomechanism problems.","PeriodicalId":169932,"journal":{"name":"2004 5th Asian Control Conference (IEEE Cat. No.04EX904)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128053660","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}
{"title":"Feasibility of constrained generalized predictive control within invariant sets framework","authors":"Sorin Olaru, D. Dumur","doi":"10.1080/1448837X.2005.11464116","DOIUrl":"https://doi.org/10.1080/1448837X.2005.11464116","url":null,"abstract":"Feasibility issues of generalized predictive control structures are analysed in case of constraints on the input, output or other auxiliary variables with linear dependence on the system variables. The constraints are formulated as sets of linear equality or inequality relations on the input variables that would represent the optimisation domain for a quadratic cost function. Looking as the main goal at the prediction of the feasibility of this optimisation problem, sufficient conditions are presented in this direction. The main contribution is the description of the optimisation domain as an invariant set with respect to the predictive control law dynamics. The main advantage is that all the results are based on off-line calculations offering qualitative information prior to the effective implementation.","PeriodicalId":169932,"journal":{"name":"2004 5th Asian Control Conference (IEEE Cat. No.04EX904)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130566324","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}