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Analysis of control strategies for systems with input-induced nonlinearities 输入诱导非线性系统控制策略分析
21st Mediterranean Conference on Control and Automation Pub Date : 2013-09-26 DOI: 10.1109/MED.2013.6608809
C. Cochior, P. V. D. Bosch, S. Weiland
{"title":"Analysis of control strategies for systems with input-induced nonlinearities","authors":"C. Cochior, P. V. D. Bosch, S. Weiland","doi":"10.1109/MED.2013.6608809","DOIUrl":"https://doi.org/10.1109/MED.2013.6608809","url":null,"abstract":"In this paper we consider the design of a nonlinear predictive controller based on a nonlinear dynamic model of the system so as to achieve tracking control for systems with input-induced nonlinearities. The economic performance under nonlinear dynamic behavior and changing operating conditions is discussed. The closed-loop properties are analyzed under suitable assumptions on the model of the plant. Control strategies are discussed and compared to different implementations in the literature. Simulation examples show the effectiveness of the proposed approaches. The approach has been validated on the example of an industrial printing system with large variations in the input print queue.","PeriodicalId":350383,"journal":{"name":"21st Mediterranean Conference on Control and Automation","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121821853","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
Experimental testing of a traction control system with on-line road condition estimation for electric vehicles 基于在线路况估计的电动汽车牵引控制系统试验研究
21st Mediterranean Conference on Control and Automation Pub Date : 2013-09-26 DOI: 10.1109/MED.2013.6608737
Goran Vasiljević, Karlo Griparic, S. Bogdan
{"title":"Experimental testing of a traction control system with on-line road condition estimation for electric vehicles","authors":"Goran Vasiljević, Karlo Griparic, S. Bogdan","doi":"10.1109/MED.2013.6608737","DOIUrl":"https://doi.org/10.1109/MED.2013.6608737","url":null,"abstract":"In this paper experimental results of testing slip-based traction control system (TCS) with an on-line road condition estimation are presented. TCS is designed for a car with in-wheel electric motors, so that estimation and control are implemented independently for each wheel thus enabling the optimal friction coefficient for every wheel, even if they are on different surfaces or have different tire characteristics. A road condition is approximated using a function which is estimated in the real-time and used as the input to the TCS. The design of the presented TCS is based on the wheel slip ratio, controlled to it's optimal value by a PI controller and with the addition of a feedforward branch for the transition response speed up. System is tested on a newly developed experimental setup consisting of the wheel with embedded (in-wheel) motor rolling on the metal drum loaded by the second motor simulating car behaviour.","PeriodicalId":350383,"journal":{"name":"21st Mediterranean Conference on Control and Automation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125040255","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
Decentralized control for maintenance of strong connectivity for directed graphs 为维护有向图的强连通性而进行的分散控制
21st Mediterranean Conference on Control and Automation Pub Date : 2013-09-26 DOI: 10.1109/MED.2013.6608840
Lorenzo Sabattini, C. Secchi, N. Chopra
{"title":"Decentralized control for maintenance of strong connectivity for directed graphs","authors":"Lorenzo Sabattini, C. Secchi, N. Chopra","doi":"10.1109/MED.2013.6608840","DOIUrl":"https://doi.org/10.1109/MED.2013.6608840","url":null,"abstract":"In order to accomplish cooperative tasks, decentralized systems are required to communicate among each other. Thus, maintaining the connectivity of the communication graph is a fundamental issue. Connectivity maintenance has been extensively studied in the last few years, but generally considering undirected communication graphs. In this paper we introduce a decentralized control and estimation strategy to maintain the strong connectivity property of directed communication graphs. The control strategy is initially developed for balanced digraphs, and is then extended to generic strongly connected digraphs, introducing a decentralized balancing algorithm. The control strategy is validated by means of analytical proofs and simulation results.","PeriodicalId":350383,"journal":{"name":"21st Mediterranean Conference on Control and Automation","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129057706","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
A robust nonlinear semi-active control for base seismically-isolated structures 基础隔震结构的鲁棒非线性半主动控制
21st Mediterranean Conference on Control and Automation Pub Date : 2013-06-25 DOI: 10.1109/MED.2013.6608775
C. Teodorescu, S. Diop, I. Politopoulos, M. Benidir
{"title":"A robust nonlinear semi-active control for base seismically-isolated structures","authors":"C. Teodorescu, S. Diop, I. Politopoulos, M. Benidir","doi":"10.1109/MED.2013.6608775","DOIUrl":"https://doi.org/10.1109/MED.2013.6608775","url":null,"abstract":"This paper proposes a robust nonlinear semi-active control for base seismically-isolated structures. The control is based upon an extension of works of Leitmann et al. on the stabilization of nonlinear systems with uncertain models. For usual models of structure dynamics it is shown that applying a specific control law drives the state variables into a ball of specified radius in finite time. The radius of the ball may be arbitrarily chosen as long as it is not lower than a limiting value. In addition, estimates of this limiting ball radius is provided. The time to reach the ball is also provided. The semi-active control thus provides the control designer with interesting design parameters. The efficacy of proposed semi-active control is illustrated by its application to simple models of structures focusing in particular to the attenuation of excitation transmitted from floor to equipment mounted on them.","PeriodicalId":350383,"journal":{"name":"21st Mediterranean Conference on Control and Automation","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116933561","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
Temporal/spatial model-based fault diagnosis vs. Hidden Markov models change detection method: Application to the Barcelona water network 基于时间/空间模型的故障诊断与隐马尔可夫模型变化检测方法:在巴塞罗那水网中的应用
21st Mediterranean Conference on Control and Automation Pub Date : 2013-06-25 DOI: 10.1109/MED.2013.6608752
J. Quevedo, C. Alippi, M. Cugueró, S. Ntalampiras, V. Puig, M. Roveri, D. García
{"title":"Temporal/spatial model-based fault diagnosis vs. Hidden Markov models change detection method: Application to the Barcelona water network","authors":"J. Quevedo, C. Alippi, M. Cugueró, S. Ntalampiras, V. Puig, M. Roveri, D. García","doi":"10.1109/MED.2013.6608752","DOIUrl":"https://doi.org/10.1109/MED.2013.6608752","url":null,"abstract":"This paper deals with a comparison of two different fault diagnosis frameworks. The first method is based on a temporal/spatial model-based analysis by exploiting a-priori information about the system under study, so fault detection is based on monitoring the residuals of combined spatial and time series models obtained from the network. The second method aims at characterizing and detecting changes in the probabilistic pattern sequence of data coming from the network. Relationships between data streams are modelled through sequences of linear dynamic time-invariant models whose trained coefficients are used to feed a Hidden Markov Model (HMM). When the pattern structure of incoming data cannot be explained by the trained HMM, a change is detected. Here, the performance obtained from this two distinct approaches is examined by using a dataset coming from the Barcelona water transport network.","PeriodicalId":350383,"journal":{"name":"21st Mediterranean Conference on Control and Automation","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117354594","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: 5
Model of a self-excited induction generator for the design of capacitor-controlled voltage regulators 用于电容控制稳压器设计的自激感应发电机模型
21st Mediterranean Conference on Control and Automation Pub Date : 2013-06-25 DOI: 10.1109/MED.2013.6608713
O. Kiselychnyk, M. Bodson, Jihong Wang
{"title":"Model of a self-excited induction generator for the design of capacitor-controlled voltage regulators","authors":"O. Kiselychnyk, M. Bodson, Jihong Wang","doi":"10.1109/MED.2013.6608713","DOIUrl":"https://doi.org/10.1109/MED.2013.6608713","url":null,"abstract":"The systematic design of voltage regulation systems for self-excited induction generators requires the development of a control-oriented model. The paper considers the situation where the peak magnitude of the stator voltages is regulated through adjustable capacitors connected to the windings. A transfer function model is difficult to obtain, due to the strong nonlinearity of the self-excitation phenomenon, and to unconventional features of the problem. Nevertheless, the paper succeeds in computing a transfer function relating small deviations of the capacitance to small deviations of the voltage magnitude using a clever choice of reference frame. The linearized system is found to be stable for all operating points under consideration, and the eigenvalues of the system predict rapidly-decaying oscillatory transients combined with a slower exponentially decaying component. Results of simulations of the full nonlinear model and of the linearized system demonstrate the validity of the approximation for small deviations. Experimental results also show a good match between measured data and the identified model.","PeriodicalId":350383,"journal":{"name":"21st Mediterranean Conference on Control and Automation","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120890494","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
Inventory and order admission control in manufacturing systems with two customer classes and setup times 具有两个客户类别和设置时间的制造系统中的库存和订单接收控制
21st Mediterranean Conference on Control and Automation Pub Date : 2013-06-25 DOI: 10.1109/MED.2013.6608808
S. Ioannidis, Ioannis Sarantis
{"title":"Inventory and order admission control in manufacturing systems with two customer classes and setup times","authors":"S. Ioannidis, Ioannis Sarantis","doi":"10.1109/MED.2013.6608808","DOIUrl":"https://doi.org/10.1109/MED.2013.6608808","url":null,"abstract":"In this paper we examine a Markovian singlestage manufacturing system, with setup times producing a single item to satisfy demand of two different customer classes. We investigate numerically the structure of the optimal inventory and order admission control policy. Due to the complexity of the optimal policy a simple heuristic policy is proposed. Numerical results show that the proposed policy can be a very good approximation of the optimal policy.","PeriodicalId":350383,"journal":{"name":"21st Mediterranean Conference on Control and Automation","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127151114","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
Establishing regional competence centre for life long learning in electrical engineering 建立电气工程终身学习区域能力中心
21st Mediterranean Conference on Control and Automation Pub Date : 2013-06-25 DOI: 10.1109/MED.2013.6608780
A. Zabasta, N. Kunicina, A. Zhiravecka, A. Patlins, L. Ribickis
{"title":"Establishing regional competence centre for life long learning in electrical engineering","authors":"A. Zabasta, N. Kunicina, A. Zhiravecka, A. Patlins, L. Ribickis","doi":"10.1109/MED.2013.6608780","DOIUrl":"https://doi.org/10.1109/MED.2013.6608780","url":null,"abstract":"The rapid technology development in the electrical engineering requires to promote life long learning concept in practice. The industrial needs and future carrier perspectives are not limited to the college or university degree for electrical engineers. The sharing of advanced research results, the development IT platform for education allows to achieve sufficient methodological base for engineers training at all stages of career. The case study of the Institute of Industrial Electronics and Electrical Engineering (IEEI) of Riga Technical University is discussed in this paper.","PeriodicalId":350383,"journal":{"name":"21st Mediterranean Conference on Control and Automation","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124930087","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: 5
Invariant sets and guaranteed cost control of nonlinear quadratic systems 非线性二次系统的不变量集与保成本控制
21st Mediterranean Conference on Control and Automation Pub Date : 2013-06-25 DOI: 10.1109/MED.2013.6608821
F. Amato, Domenico Colacino, C. Cosentino, A. Merola
{"title":"Invariant sets and guaranteed cost control of nonlinear quadratic systems","authors":"F. Amato, Domenico Colacino, C. Cosentino, A. Merola","doi":"10.1109/MED.2013.6608821","DOIUrl":"https://doi.org/10.1109/MED.2013.6608821","url":null,"abstract":"This paper addresses the problem of designing a guaranteed cost controller for continuous-time nonlinear quadratic systems. The main result is a sufficient condition for the existence of a linear state feedback controller achieving an assigned guaranteed cost, whenever the state trajectories remain within a suitable invariant set. The conditions are cast in the form of Linear Matrix Inequalities (LMIs), which can be efficiently solved via available optimization algorithms. The effectiveness of the devised approach is illustrated through an example concerning the attitude control of an unmanned aerial vehicle.","PeriodicalId":350383,"journal":{"name":"21st Mediterranean Conference on Control and Automation","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125088450","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
An architecture for solving quadratic programs with the fast gradient method on a Field Programmable Gate Array 在现场可编程门阵列上用快速梯度法求解二次规划的结构
21st Mediterranean Conference on Control and Automation Pub Date : 2013-06-25 DOI: 10.1109/MED.2013.6608929
Marc-Alexandre Boechat, Junyi Liu, Helfried Peyrl, A. Zanarini, T. Besselmann
{"title":"An architecture for solving quadratic programs with the fast gradient method on a Field Programmable Gate Array","authors":"Marc-Alexandre Boechat, Junyi Liu, Helfried Peyrl, A. Zanarini, T. Besselmann","doi":"10.1109/MED.2013.6608929","DOIUrl":"https://doi.org/10.1109/MED.2013.6608929","url":null,"abstract":"In this paper an architecture for the implementation of gradient-based optimisation methods on a Field Programmable Gate Array (FPGA) is proposed. Combining the algorithmic advantages of gradient-based algorithms with the computational strengths of a tailored FPGA implementation allows to solve quadratic programs occurring, for example, in Model Predictive Control (MPC) applications in the microsecond range. The experimental comparisons show a computational advantage of the proposed FPGA implementation against parallel software versions ranging between one and two orders of magnitude. The proposed FPGA-based solution can broaden the applicability of MPC to problems that were considered out-of-reach till recent years.","PeriodicalId":350383,"journal":{"name":"21st Mediterranean Conference on Control and Automation","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123710855","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: 16
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