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Dissertations / Theses on the topic 'Assessment of control systems problems'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

ERMIDORO, Michele. "Control and estimation problems based on inertial measurements in industrial mechatronic systems." Doctoral thesis, Università degli studi di Bergamo, 2015. http://hdl.handle.net/10446/33696.

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The price of inertial platforms (based on MEMS sensors) is dropping, permitting the use of these sensors in various field, like, for instance, the industrial one. The inertial measurements can be used raw or can be elaborated in order to obtain high level information like the orientation of an object. The thesis approach the problem of using the inertial platforms firstly as orientation sensor, showing some algorithms for the estimation, and then as a way to increase the performance of a mechatronic system. The first application shows an innovative anti sway system for bridge crane, which use

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2

Vafiadis, Konstantinos G. "Systems and control problems in early systems design." Thesis, City University London, 2003. http://openaccess.city.ac.uk/7661/.

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This thesis is concerned with the evaluation of properties of early design models, the control structure selection and the representation and properties of composite system models. The work is motivated by the need to introduce a Systems and Control Theory based framework for early design stages of the overall system design of engineering processes, and in particular chemical processes, such as process synthesis and control structure selection. The overall spirit of the work is that engineering design is an evolutionary process, the different stages of which shape the structure of the resultin

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3

Veatch, Michael H. "Queueing control problems for production/inventory systems." Thesis, Massachusetts Institute of Technology, 1992. http://hdl.handle.net/1721.1/12859.

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4

Czornik, Adam. "On control problems for jump linear systems." Praca habilitacyjna, Wydawnictwo Politechniki Śląskiej, 2003. https://delibra.bg.polsl.pl/dlibra/docmetadata?showContent=true&id=8802.

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5

Coclite, Giuseppe Maria. "Control Problems for Systems of Conservation Laws." Doctoral thesis, SISSA, 2003. http://hdl.handle.net/20.500.11767/4262.

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6

Vemulapalli, Manish Goldie. "Resource allocation problems in communication and control systems." Diss., University of Iowa, 2012. https://ir.uiowa.edu/etd/3547.

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Resource allocation in control and communication systems constitutes the distribution of (finite) system resources in a way that achieves maximum system functionality and or cost effectiveness. Specific resource allocation problems in subband coding, Discrete Multi-tone modulation based systems and autonomous multi-agent control are addressed in this thesis. In subband coding, the number of bits used (out of a target bit budget) to code a sub- band signal are allocated in a way that minimizes the coding distortion. In Discrete Multi-tone modulation based systems, high bit rate streams are spli

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7

嚴利興 and Li-hing Yim. "Some stability results for time-delay control problems." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B31225482.

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Yim, Li-hing. "Some stability results for time-delay control problems." Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B22926094.

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9

Yildiz, Yildiray. "Adaptive control of time delay systems and applications to automotive control problems." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/46622.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2009.<br>Includes bibliographical references (p. 107-114).<br>This thesis is about the adaptive control of time delay systems with applications to automotive control problems. The stabilization of systems involving time delays is a difficult problem since the existence of a delay may induce instability or poor performance for the closed loop system. A unique approach for controlling systems with known time delay was originated by Otto Smith in the 1950s by compensating for the delayed output using input va

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Aguado, rojas Missie María del Rocío. "On control and estimation problems in antilock braking systems." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS103/document.

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Cette thèse aborde trois problèmes liés à l’ABS dans le cadre de la dynamique de la roue : l’estimation de la rigidité de freinage étendue (XBS) des pneus lors du freinage d’urgence, la commande de l’ABS basée sur l’estimation de l’XBS, et l’estimation de la vitesse et de l’accélération angulaires de la roue à partir des mesures provenant d’un codeur avec des imperfections. L’objectif général de ce travail est de développer des outils visant à améliorer la performance des systèmes de freinage, en utilisant des techniques adaptées de l'automatique non linéaire. La première partie de la thèse es

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11

Loxton, Ryan Christopher. "Optimal control problems involving constrained, switched, and delay systems." Thesis, Curtin University, 2010. http://hdl.handle.net/20.500.11937/1479.

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In this thesis, we develop numerical methods for solving five nonstandard optimal control problems. The main idea of each method is to reformulate the optimal control problem as, or approximate it by, a nonlinear programming problem. The decision variables in this nonlinear programming problem influence its cost function (and constraints, if it has any) implicitly through the dynamic system. Hence, deriving the gradient of the cost and the constraint functions is a difficult task. A major focus of this thesis is on developing methods for computing these gradients. These methods can then be use

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12

Paveley, R. J. "Experimental and qualitative assessment of smoke control systems." Thesis, University of Edinburgh, 1997. http://hdl.handle.net/1842/11240.

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Smoke control systems limit the spread of smoke in buildings, in the event of a fire. They have only been provided as engineered systems for the past forty years. There is little published data available on their performance in real fire situations. The effectiveness of a smoke control system is dependent on the accuracy of the modelling of the fire and smoke environment, and on the performance of the installed system. This thesis examines how these two aspects of smoke control systems may vary. An experimental program was developed to examine smoke movement from a compartment and within an at

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13

Schweickhardt, Tobias. "Nonlinearity assessment and linear control of nonlinear systems." [S.l. : s.n.], 2006. http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-29806.

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14

Harris, Katie. "Assessment of control and performance of biomedical systems." Thesis, University of Leeds, 2010. http://etheses.whiterose.ac.uk/1116/.

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Introduction: In biomedical systems repeated measurements are often collected, thus presenting a statistical challenge due to high temporal correlation. This research investigates the potential utility of two distinct statistical methodologies in their application. Application: Two clinically diverse biomedical systems, linked by the common methodological interest of assessing control and performance, are considered. (i) An application to renal anaemia aims to investigate the stability of haemoglobin levels, measured monthly for 13 months within 151 patients, with the ultimate goal of improvin

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15

Barbero, Liñán María. "A geometric study of abnormality in optimal control problems for control and mechanical control systems." Doctoral thesis, Universitat Politècnica de Catalunya, 2008. http://hdl.handle.net/10803/22736.

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Durant els darrers quaranta anys la geometria diferencial ha estat una eina fonamental per entendre la teoria de control òptim. Habitualment la millor estratègia per resoldre un problema és transformar-lo en un altre problema que sigui més tractable. El Principi del Màxim de Pontryagin proporciona al problema de control òptim d’una estructura Hamiltoniana. Les solucions del problema Hamiltonià que satisfan unes determinades propietats són candidates a ésser solucions del problema de control òptim. Aquestes corbes candidates reben el nom d’extremals. Per tant, el Principi del Màxim de Pontryag

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Lyubchyk, Leonid, and Galina Grinberg. "Inverse Dynamic Models in Chaotic Systems Identification and Control Problems." Thesis, Ternopil National Economic University, 2018. http://repository.kpi.kharkov.ua/handle/KhPI-Press/36824.

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Inverse dynamic models approach for chaotic system synchronization in the presence of uncertain parameters is considered. The problem is identifying and compensating unknown state-dependent parametric disturbance describing an unmodelled dynamics that generates chaotic motion. Based on the method of inverse model control, disturbance observers and compensators are synthesized. A control law is proposed that ensures the stabilization of chaotic system movement along master reference trajectory. The results of computational simulation of controlled Rösller attractor synchronization are also pres

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17

Obrzut, Timothy Michael. "Non-Collocation Problems in Dynamics and Control of Mechanical Systems." Cleveland State University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=csu1262832880.

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18

Rampazzo, Franco. "Impulsive Control Systems : Dynamics, Optimization Problems, and Applications to Mechanics." Doctoral thesis, SISSA, 1989. http://hdl.handle.net/20.500.11767/4558.

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19

Ko, Byung-su. "On performance assessment of feedback control loops /." Digital version accessible at:, 2000. http://wwwlib.umi.com/cr/utexas/main.

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20

Cote, James W. "Voltage security assessment and control in electric power systems /." Thesis, Connect to this title online; UW restricted, 1992. http://hdl.handle.net/1773/5925.

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21

Bensing, Richard G. "An assessment of vulnerabilities for ship-based control systems." Thesis, Monterey, California : Naval Postgraduate School, 2009. http://edocs.nps.edu/npspubs/scholarly/theses/2009/Sep/09Sep%5FBensing.pdf.

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Thesis (M.S. in Computer Science)--Naval Postgraduate School, September 2009.<br>Thesis Advisor(s): Burke, Karen ; Dinolt, George. "September 2009." Description based on title screen as viewed on November 04, 2009. Author(s) subject terms: Vulnerability Assessment, Supervisory Control and Data Acquisition, SCADA, Critical Infrastructure, Information Assurance, control system Includes bibliographical references (p. 161-170). Also available in print.

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22

Shafie-Pour, A. R. "Real-time power system security assessment." Thesis, Durham University, 1989. http://etheses.dur.ac.uk/9303/.

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The increasing complexity of modern power systems has led to a greater dependence on automatic control at all levels of operation. Large scale systems of which a power system is a prime example, is an area in which a wide gap exists between theoretical mathematically based research and engineering practice. The research programme at Durham is directed towards bridging this gap by linking some of the available and new theoretical techniques with the practical requirements of on-line computer control in power systems. This thesis is concerned with the assessment of security of power systems in r

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23

Fonseca, Carlos Manuel Mira da. "Multiobjective genetic algorithms with application to control engineering problems." Thesis, University of Sheffield, 1995. http://etheses.whiterose.ac.uk/1887/.

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Genetic algorithms (GAs) are stochastic search techniques inspired by the principles of natural selection and natural genetics which have revealed a number of characteristics particularly useful for applications in optimization, engineering, and computer science, among other fields. In control engineering, they have found application mainly in problems involving functions difficult to characterize mathematically or known to present difficulties to more conventional numerical optimizers, as well as problems involving non-numeric and mixed-type variables. In addition, they exhibit a large degree

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24

Huang, Hongqing. "Algorithms for optimal feedback control problems." Ohio : Ohio University, 1994. http://www.ohiolink.edu/etd/view.cgi?ohiou1177101576.

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25

Kashima, Kenji. "General solution to standard H∞ control problems for infinite-dimensional systems." 京都大学 (Kyoto University), 2005. http://hdl.handle.net/2433/144809.

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26

Lumley, Richard R. "Index heuristics for routing and service control problems within queueing systems." Thesis, University of Edinburgh, 2005. http://hdl.handle.net/1842/29230.

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This thesis is naturally broken down into two main problems, one concerning optimal routing control and the other optimal service control. In the routing control problem the arriving customers must be allocated to one of the ‘K’ possible service stations. We assume that the customers arrive in a single Poisson stream. We take the service at each of the stations to be exponentially distributed, but perhaps with different parameters. The system cost rate is additive across the queues formed at each station. We also have that at each station the holding cost function is increasing convex. Followi

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27

Battermann, Astrid. "Preconditioning of Karush--Kuhn--Tucker Systems arising in Optimal Control Problems." Thesis, Virginia Tech, 1996. http://hdl.handle.net/10919/9579.

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This work is concerned with the construction of preconditioners for indefinite linear systems. The systems under investigation arise in the numerical solution of quadratic programming problems, for example in the form of Karush--Kuhn--Tucker (KKT) optimality conditions or in interior--point methods. Therefore, the system matrix is referred to as a KKT matrix. It is not the purpose of this thesis to investigate systems arising from general quadratic programming problems, but to study systems arising in linear quadratic control problems governed by partial differential equations. The KKT matrix

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28

Chen, Dejiu. "Systems Modeling and Modularity Assessment for Embedded Computer Control Applications." Doctoral thesis, KTH, Maskinkonstruktion, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3792.

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AbstractThe development of embedded computer control systems(ECS) requires a synergetic integration of heterogeneoustechnologies and multiple engineering disciplines. Withincreasing amount of functionalities and expectations for highproduct qualities, short time-to-market, and low cost, thesuccess of complexity control and built-in flexibility turn outto be one of the major competitive edges for many ECS products.For this reason, modeling and modularity assessment constitutetwo critical subjects of ECS engineering.In the development ofECS, model-based design is currently being exploited in mos

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29

Pourvatan, Ladan. "Test Process Assessment of Industrial Control Systems via Safety Standards." Thesis, Mälardalens högskola, Inbyggda system, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-54702.

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As more systems are becoming embedded hardware-based, challenges regarding software safety and considerable consequences of their failure arise. Various safety standards assure certain safety aspects of systems, addressing areas including testing. The safety standards chosen for this thesis are ISO/IEC/IEEE 29119-2 & 3, IEC 61508-1 & 3, ISO 13849-1 & 2, and ISO/IEC/IEEE 12207:2017. This thesis tackles the problem of compliance with safety standards by utilising a lightweight assessment method, leading to recommendations for improving the test process of an industrial control system

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30

Ma, Kang. "Risk assessment of power systems under a corrective control paradigm." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/risk-assessment-of-power-systems-under-a-corrective-control-paradigm(9dab5a18-0087-408d-a2fb-58513290f314).html.

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Given the fact that the load is continuously growing as a sign of economic development and that renewable intermittent generation is growing rapidly driven by global climate change concerns and rising fuel costs, existing power systems need to be reinforced in order to accommodate the growing load and intermittent generation. Corrective control is a promising alternative solution to preventive control which, in this context, is represented by traditional system reinforcement of building more transmission facilities. The concept of reliability, existing reliability assessment methodologies and

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31

Dymkou, Siarhei. "Approximations for some classes of optimal control problems with state constraints and repetitive control systems." Thesis, University of Ballarat, 2005. http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/69220.

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This report presents the investigation on the research work "Approximations for some classes of optimal control problems with state constraints and repetitive control systems". This report mainly gives the theoretical part of the research which is based on the numerical methods that are developed. It is conjectured that the corresponding algorithms will be realized as computer programs after which they can be used in practical work.<br>Master of Information Technology

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32

Mahmood, Sajid. "Some structural problems arising in the generalised theory of linear multivariable control systems." Thesis, Loughborough University, 1996. https://dspace.lboro.ac.uk/2134/27896.

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A number of structural problems in linear multivariable control systems are considered in this thesis. The first concerns the detail of the infinite frequency structure of a rational matrix carried in a matrix fraction description (MFD) and the question of how this may be detected in an immediate way. It is shown that any non-prime MFD which is just a column (resp. row) reduced MFD (CRMFD (resp. RRMFD)) readily displays such information. Of particular interest are those CRMFDs (resp. RRMFDs) which display the complete infinite frequency structure, as regards multiplicity and degree of the infi

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33

Kay, Jacob. "Control authority assessment in aircraft conceptual design." Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-03242009-040703/.

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Nieradzinska, Kamila. "Multi-technology offshore wind power systems : control and dynamic performance assessment." Thesis, University of Strathclyde, 2017. http://digitool.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=28869.

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This thesis presents a comprehensive study on the operation, principles and theory of wind farms consisting of doubly-fed induction (DFIG) and fully-rated converter (FRC) wind generators working together in a hybrid arrangement. The main objective of this study is to develop control strategies for the hybrid arrangement of wind turbines in order to improve the grid code compliance of the overall wind farm by exploiting the unique characteristics of both technologies to support each other in case of a fault happening. As a result, this thesis presents a novel control strategy for fully rated co

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35

Irshad, Yasir. "On some continuous-time modeling and estimation problems for control and communication." Doctoral thesis, Karlstads universitet, Institutionen för ingenjörsvetenskap och fysik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-26129.

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The scope of the thesis is to estimate the parameters of continuous-time models used within control and communication from sampled data with high accuracy and in a computationally efficient way.In the thesis, continuous-time models of systems controlled in a networked environment, errors-in-variables systems, stochastic closed-loop systems, and wireless channels are considered. The parameters of a transfer function based model for the process in a networked control system are estimated by a covariance function based approach relying upon the second order statistical properties of input and out

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36

Cheung, Siu-pan. "Direct transient stability margin assessment of power system with excitation control and SVC control /." Hong Kong : University of Hong Kong, 1996. http://sunzi.lib.hku.hk/hkuto/record.jsp?B1753706X.

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37

Vugrin, Eric D. "On Approximation and Optimal Control of Nonnormal Distributed Parameter Systems." Diss., Virginia Tech, 2004. http://hdl.handle.net/10919/11149.

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For more than 100 years, the Navier-Stokes equations and various linearizations have been used as a model to study fluid dynamics. Recently, attention has been directed toward studying the nonnormality of linearized problems and developing convergent numerical schemes for simulation of these sytems. Numerical schemes for optimal control problems often require additional properties that may not be necessary for simulation; these properties can be critical when studying nonnormal problems. This research is concerned with approximating infinite dimensional optimal control problems with nonnorma

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FarinWata, Shehu Saíd. "Performance assessment of fuzzy logic control systems via stability and robustness measures." Diss., Georgia Institute of Technology, 1993. http://hdl.handle.net/1853/14797.

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張小彬 and Siu-pan Cheung. "Direct transient stability margin assessment of power system with excitation control and SVC control." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1996. http://hub.hku.hk/bib/B31212979.

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COLTURATO, MICHELE. "Phase field systems with maximal monotone nonlinearities related to sliding mode control problems." Doctoral thesis, Università degli studi di Pavia, 2018. http://hdl.handle.net/11571/1214815.

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We investigate phase field systems and Cahn-Hilliard systems perturbed by maximal monotone nonlinearities and singular terms. First, we prove existence, uniqueness and longtime behavior of the solution; then, we consider the related sliding mode control (SMC) problem: the main idea behind this scheme is first to identify a manifold of lower dimension (called the sliding manifold) where the control goal is fullled and such that the original system restricted to this sliding manifold has a desired behavior, and then to act on the system through the control in order to constrain the evolution on

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Sheerin, Todd F. (Todd Fillmore). "Design and utility assessment of attitude control systems for EVA task performance." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/101449.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2015.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 191-196).<br>Low gravity astronaut extravehicular activity (EVA) missions using a maneuvering Jetpack and robotic servicing and assembly missions could benet from spacecraft systems capable of maintaining pointing stability during critical op

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Coventry, Lynne Margaret. "Helping UNIX users : an assessment of the effectiveness of various forms of online help." Thesis, University of Stirling, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293982.

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Larrañaga, Maialen. "Dynamic control of stochastic and fluid resource-sharing systems." Thesis, Toulouse, INPT, 2015. http://www.theses.fr/2015INPT0075/document.

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Dans cette thèse, nous étudions le contrôle dynamique des systèmes de partage de ressources qui se posent dans divers domaines : réseaux de gestion des stocks, services de santé, réseaux de communication, etc. Nous visons à allouer efficacement les ressources disponibles entre des projets concurrents, selon certains critères de performance. Ce type de problème est de nature stochastique et peut être très complexe à résoudre. Nous nous concentrons donc sur le développement de méthodes heuristiques performantes. Dans la partie I, nous nous plaçons dans le cadre des Restless Bandit Problems, qui

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FAZZI, ANTONIO. "Theory and numerics of some matrix nearness problems with applications in systems and control." Doctoral thesis, Gran Sasso Science Institute, 2020. http://hdl.handle.net/20.500.12571/10003.

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Structured matrices naturally arise in different fields of sciences since they are the keys of smart and efficient solutions. Several properties of physical or engineering models can be usually characterized by constraints on structured matrices (e.g. rank constraints). There- fore it is usually interesting to study how far a given model is from another one satisfying a given property. The thesis focuses on some problems which can be restated as (structured) matrix near- ness problems, and in particular we are interested in computing which is the closest matrix to a given one which satisfy a

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Cowell, Sarah J. "Environmental life cycle assessment of agricultural systems : integration into decision-making." Thesis, University of Surrey, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.265649.

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Spurgeon, S. K. "An assessment of robustness of flight control systems based on variable structure techniques." Thesis, University of York, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383881.

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CID, PEDRO HENRIQUE SILVA. "VOLTAGE STABILITY ASSESSMENT INDEXES FOR SYSTEMS WITH LOCAL, REMOTE AND COORDINATED VOLTAGE CONTROL." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2013. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=23512@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>A crescente demanda de energia elétrica, associada a limitações na expansão do sistema de transmissão, resulta na operação dos sistemas elétricos cada vez mais próxima de seus limites, tornando-os vulneráveis a problemas de estabilidade de tensão. Neste contexto, o desenvolvimento de métodos para avaliação do carregamento da rede de transmissão tornou-se fundamental para que se possa compreender o funcionamento do sistema nestas condições, bem como possibilitar sua operação com maior confiabilidade e segurança. No presente trabalho é aprese

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Irshad, Yasir. "Some problems of modeling and parameter estimation in continous-time for control and communication." Licentiate thesis, Karlstads universitet, Avdelningen för fysik och elektroteknik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-7128.

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Stochastic system identification is of great interest in the areas of control and communication. In stochastic system identification, a model of a dynamic system is determined based on given inputs and received outputs from the system, where stochastic uncertainties are also involved. The scope of the report is to consider continuous-time models used within control and communication and to estimate the model parameters from sampled data with high accuracy in a computational efficient way. Continuous-time models of systems controlled in a networked environment, stochastic closed-loop systems, a

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Wang, Wei. "WebRTC Quality Control in Contextual Communication Systems." Thesis, KTH, Radio Systems Laboratory (RS Lab), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-232704.

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Audio and video communication is a universal task with a long history of technologies. Recent examples of these technologies include Skype video calling, Apple’s Face Time, and Google Hangouts. Today, these services offer everyday users the ability to have an interactive conference with both audio and video streams. However, many of these solutions depend on extra plugins or applications installing on the user’s personal computer or mobile device. Some of them also are subject to licensing, introducing a huge barrier for developers and restraining new companies from entering this area. The aim

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Eovito, Bryan A. "An assessment of joint chat requirements from current usage patterns." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2006. http://library.nps.navy.mil/uhtbin/hyperion/06Jun%5FEovito.pdf.

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