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42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475)最新文献

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A variable structure parallel observer system for robust state estimation of multirate systems with noise 含噪声多速率系统鲁棒状态估计的变结构并行观测器
42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475) Pub Date : 2003-12-09 DOI: 10.1109/CDC.2003.1272789
May-Win L. Thein
{"title":"A variable structure parallel observer system for robust state estimation of multirate systems with noise","authors":"May-Win L. Thein","doi":"10.1109/CDC.2003.1272789","DOIUrl":"https://doi.org/10.1109/CDC.2003.1272789","url":null,"abstract":"This paper proposes the variable structure parallel observer system for noisy measurements (VSPOSN), a multirate estimation technique for discrete time systems, to compensate for output measurements that are noisy and only periodically available. The VSPOSN is an extension of the original Parallel Observer System. The VSPOSN is based upon a stable and robust discrete-time sliding mode observer with a set of attractive boundary layers driving a Luenberger observer running in parallel. The resulting observer system provides stable state estimates for each control step despite incomplete and noisy measurements. The VSPOSN is applied to a second order resonance model with nonlinear uncertainties/disturbances as proof of concept, and a stability proof and error bounds are provided.","PeriodicalId":371853,"journal":{"name":"42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129240514","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
A new approach for asymptotic stability analysis in the case of discontinuous Lyapunov function derivative 不连续Lyapunov函数导数渐近稳定性分析的新方法
42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475) Pub Date : 2003-12-09 DOI: 10.1109/CDC.2003.1272441
Xiao-Yun Lu, J. Hedrick
{"title":"A new approach for asymptotic stability analysis in the case of discontinuous Lyapunov function derivative","authors":"Xiao-Yun Lu, J. Hedrick","doi":"10.1109/CDC.2003.1272441","DOIUrl":"https://doi.org/10.1109/CDC.2003.1272441","url":null,"abstract":"This paper considers the asymptotic stability analysis of nonlinear systems with discontinuous right hand side and/or the Lyapunov function candidate has bounded but discontinuous partial derivatives. It provides a new approach for the analysis of asymptotic stability in the normal sense instead of the sense of Fillipov.","PeriodicalId":371853,"journal":{"name":"42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124682439","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
H/sub 2/ and H/sub /spl infin// robust nonrational filtering for linear delay systems 线性延迟系统的H/sub / 2/和H/sub /spl内//鲁棒非理性滤波
42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475) Pub Date : 2003-12-09 DOI: 10.1109/CDC.2003.1272196
M. D. Oliveira, J. Geromel
{"title":"H/sub 2/ and H/sub /spl infin// robust nonrational filtering for linear delay systems","authors":"M. D. Oliveira, J. Geromel","doi":"10.1109/CDC.2003.1272196","DOIUrl":"https://doi.org/10.1109/CDC.2003.1272196","url":null,"abstract":"This paper addresses the problem of robust filtering for uncertain linear signal models affected by time delays in the state. Uncertainty is structured and the model is assumed to lie in a given bounded polyhedral set. The main innovation is the use of a nonrational filter, that is, a filter that also contains delays in the filter state. Robust filtering performance is evaluated using the H/sub 2/ or the H/sub /spl infin// norm. The performance conditions are delay independent, and provide convex filtering design problems, which are convex optimization problems with linear matrix inequalities constraints.","PeriodicalId":371853,"journal":{"name":"42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475)","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129543862","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: 7
Some results on the computation of minimal siphons in Petri nets Petri网中最小虹吸管计算的一些结果
42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475) Pub Date : 2003-12-09 DOI: 10.1109/CDC.2003.1271733
R. Cordone, L. Ferrarini, L. Piroddi
{"title":"Some results on the computation of minimal siphons in Petri nets","authors":"R. Cordone, L. Ferrarini, L. Piroddi","doi":"10.1109/CDC.2003.1271733","DOIUrl":"https://doi.org/10.1109/CDC.2003.1271733","url":null,"abstract":"The problem addressed in the paper is that of computing minimal siphons in standard Petri nets. In particular, some new theoretical results are stated and proved which aim at reducing the original problem to a set of smaller sub-problems. Based on that, a conceptual algorithm is proposed which efficiently computes a set of siphons containing the minimal siphons of a net. An experimental prototypical version of the proposed search algorithm has been developed and a campaign on a large set of random test instances has been carried out to evaluate the effectiveness and efficiency of the proposed method.","PeriodicalId":371853,"journal":{"name":"42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130496213","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: 22
Algorithms for the solution of optimization problems with two numerical precision parameters 具有两个数值精度参数的优化问题的求解算法
42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475) Pub Date : 2003-12-09 DOI: 10.1109/CDC.2003.1272906
E. Polak, O. Pironneau
{"title":"Algorithms for the solution of optimization problems with two numerical precision parameters","authors":"E. Polak, O. Pironneau","doi":"10.1109/CDC.2003.1272906","DOIUrl":"https://doi.org/10.1109/CDC.2003.1272906","url":null,"abstract":"We generalize the theory of consistent approximations and algorithm implementations presented in [E Polak, 1993] so as to enable us to solve infinite-dimensional optimization problems whose discretization involves two precision parameters. A typical example of such a problem is an optimal control problem with initial and final value constraints. Our main result is a two-discretization parameter algorithm model, with an associated convergence theorem. We illustrate its applicability by implementing it using an approximate steepest descent method and applying it to a simple two point boundary value optimal control problem. Our numerical results (not only the ones in this paper) show that algorithms based on our new model perform quite well and are fairly insensitive to the selection of user-set parameters. Also, they appear to be superior to some alternative, ad hoc schemes.","PeriodicalId":371853,"journal":{"name":"42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130514219","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
Characterizing polynomials with roots in a semi-algebraic set 半代数集中有根多项式的表征
42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475) Pub Date : 2003-12-09 DOI: 10.1109/CDC.2003.1271686
J. Lasserre
{"title":"Characterizing polynomials with roots in a semi-algebraic set","authors":"J. Lasserre","doi":"10.1109/CDC.2003.1271686","DOIUrl":"https://doi.org/10.1109/CDC.2003.1271686","url":null,"abstract":"Let p /spl epsi/ R[x] be a real-valued polynomial and S /spl sub/ C a semi-algebraic set defined by polynomial inequalities gk(z, z~)/spl ges/0 for some polynomials g/sub k/ in C[z, z~]. We provide a necessary and sufficient condition on the coefficients of p for all the zeros of p to be in S.","PeriodicalId":371853,"journal":{"name":"42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129122371","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
Sensorless IPMSM drive with EKF estimation of speed and rotor position 用EKF估计速度和转子位置的无传感器IPMSM驱动
42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475) Pub Date : 2003-12-09 DOI: 10.1109/CDC.2003.1271951
M. Kosaka, H. Uda
{"title":"Sensorless IPMSM drive with EKF estimation of speed and rotor position","authors":"M. Kosaka, H. Uda","doi":"10.1109/CDC.2003.1271951","DOIUrl":"https://doi.org/10.1109/CDC.2003.1271951","url":null,"abstract":"In this paper, a new sensorless interior permanent magnet synchronous motor (IPMSM) drive method with extended Kalman filtering (EKF) estimation of speed and rotor position is proposed. This method is on the basis of the sensorless surface permanent magnet synchronous motor (SPMSM) drive [Bolognani et al., 1999] that can be applied to motors with no salient pole and is developed so as to be able to be applied to motors with salient pole such as IPMSM. The feature of the method is that rotor position estimation error does not occur even if motor current or motor voltage change. Therefore, the method can be applied with arbitrary motor voltage waveform and, consequently, the method is suitable for sensorless IPMSM drive. Numerical simulations are illustrated to verify the effect of the method.","PeriodicalId":371853,"journal":{"name":"42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130616125","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: 8
Filtering of dynamic measurements in intelligent sensors for fault detection based on data-driven models 基于数据驱动模型的智能传感器故障检测动态测量滤波
42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475) Pub Date : 2003-12-09 DOI: 10.1109/CDC.2003.1272606
E. Lughofer, Hajrudin Efendic, L. Re, E. Klement
{"title":"Filtering of dynamic measurements in intelligent sensors for fault detection based on data-driven models","authors":"E. Lughofer, Hajrudin Efendic, L. Re, E. Klement","doi":"10.1109/CDC.2003.1272606","DOIUrl":"https://doi.org/10.1109/CDC.2003.1272606","url":null,"abstract":"Increasing complexity of test benches and the widespread use of automatic calibration and optimization tools leads to tighter requirements on the data quality. For many applications, like engine test benches, there are too few physical information a priori to allow the use of classical fault detection methods. In this paper, we propose a structure which has been developed and tested for engine test benches, in which data-driven models are built dynamically from measurements and fault detection is carried out by using data-driven models as reference situation. To improve the performance of fault detection statements, signal analysis algorithms are applied in intelligent sensors to detect disturbances such as peaks or drifts in the dynamic signals.","PeriodicalId":371853,"journal":{"name":"42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475)","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124177268","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: 11
Optimality of double bracket and generalized double bracket flows 双括号流和广义双括号流的最优性
42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475) Pub Date : 2003-12-09 DOI: 10.1109/CDC.2003.1272617
A. Bloch, A. Iserles
{"title":"Optimality of double bracket and generalized double bracket flows","authors":"A. Bloch, A. Iserles","doi":"10.1109/CDC.2003.1272617","DOIUrl":"https://doi.org/10.1109/CDC.2003.1272617","url":null,"abstract":"In this paper we consider the optimal structure of double bracket flows and generalizations of these flows to more complex gradient flows. We discuss different notions of optimality and the relationship of the flows to the structure of convex polytopes and the momentum map.","PeriodicalId":371853,"journal":{"name":"42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475)","volume":"198 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123352240","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: 1
Plasma boundary control in tokamaks 托卡马克等离子体边界控制
42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475) Pub Date : 2003-12-09 DOI: 10.1109/CDC.2003.1272298
A. Portone, D. Albert
{"title":"Plasma boundary control in tokamaks","authors":"A. Portone, D. Albert","doi":"10.1109/CDC.2003.1272298","DOIUrl":"https://doi.org/10.1109/CDC.2003.1272298","url":null,"abstract":"Plasma MHD equilibrium and stability play a key role in tokamak engineering since they have far reaching consequences in the design and operation of present and future fusion devices. Here the problem of the control of the plasma boundary is addressed and solved by a two-steps procedure. Firstly the fixed plasma equilibrium problem is solved inside a pre-assigned region and the external eideali flux necessary to keep such equilibrium is derived. Then a linear formula is given for the deviation of the plasma boundary from the ideal shape given the error in matching the external eideali flux. We apply this formula to the ITER quasi-static and dynamic plasma boundary control problem. In the quasi-static problem we aim at computing the optimal equilibrium currents that maintain a desired plasma equilibrium. The external flux is matched at the plasma boundary trading-off accuracy and cost. In the dynamic problem, the plasma equilibrium and external currents are known and we derive a linear model describing the (unstable) plasma vertical dynamics. The method proposed presents several advantages: it is computationally cheap since it requires only the mesh of the plasma region. It is remarkably robust since it requires solving an elliptic, fixed boundary problem plus the computation and SVD of the mutual inductance matrix coils-plasma boundary nodes, therefore avoiding the solution of the numerically more delicate free-boundary problem. It computes important equilibrium features (e.g. instability growth rate) and is naturally suited to include the presence of 3D eddy currents in the surrounding metallic structures.","PeriodicalId":371853,"journal":{"name":"42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475)","volume":"27 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120850392","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: 1
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