Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 16 of 16 for “"Time-delay systems."”.
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Time-delay systems : stability, sliding mode control and state estimation
Time delays and external disturbances are unavoidable in many practical control systems such as robotic manipulators, aircraft, manufacturing and process control systems and it is often a source of instability or oscillation. This thesis is concerned with the stability, sliding mode control and …
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Stability Analysis of Time Delay Systems Using Spectral Element Method
… study the response and the stability of various delay differential equations (DDEs). The development of these new analysis techniques is motivated by the existence of delays in the governing equations of many physical systems such as turning and milling processes. </p><p>Delay differential …
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New Results on Time-Delay Systems Towards Model-Based Design
This thesis is devoted to the stability study of time-delay systems, a subject that has been vigorously pursued by such learned societies as diversely represented in mathematics, science, engineering, and economics. Time-delay systems, which are also sometimes known as hereditary systems, systems …
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Analysis and implementation of time-delay systems and networked control systems
Systems with delays frequently appear in engineering. The presence of delays makes system analysis and control design much more complicated. Networked control systems where the delays are often random are typical cases of such systems.<br/><br/>For one particular category of time-delays systems, …
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Adaptive control of time delay systems and applications to automotive control problems
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 …
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An adjoint-based formalism for optimal design of time-delay systems and uncertainty quantification in stochastic systems
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-11 without embargo terms
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Stability Analysis of Positive Systems with Applications to Epidemiology
… we deal with stability of uncertain positive systems. Although in recent years much attention has been paid to positive systems in general, there are still many areas that are left untouched. One of these areas, is the stability analysis of positive systems under any form of uncertainty. In …
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Cooperative control of multi-agent systems with time-delays
… cooperative control algorithms for multi-agent systems with time-delays. The first one is Robust Sliding-Mode Cooperative Control for Multiple Time-Delay Systems with Model Uncertainties and Disturbance, in which, it designed a sliding mode cooperative control law for a general time-delay system …
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Robust Control of Input-Delay Linear Parameter-Varying (LPV) Systems
Practical systems are nonlinear and time-varying and thus linear techniques can expose their control design to extra conservatism. Nevertheless, the Linear Parameter-Varying (LPV) representation can effectively describe them, which in contrast to linearization, maintains the principal dynamic modes …
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Robust adaptive control of uncertain nonlinear systems
… control is investigated for uncertain nonlinear systems. The main purpose of the thesis is to develop adaptive control strategies for several classes of general nonlinear systems in strict-feedback form with different uncertainties including unknown parameters, unknown nonlinear systems …
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Robustness Bounds For Uncertain Sampled Data Systems With Presence of Time Delays
… these networks have made their way into control systems. Today, in majority of applications, real-time networks like CAN (Controller-Area Network), Ethernet, FlexRay, ARINC, etc are used to close the control loop. However, the use of networks leads to communication constraints like transmission …
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Consensus in multi-agent systems with time-delays
Different consensus problems in multi-agent systems have been addressed in this thesis. They represent improvements with respect to the state of the art. In the first part of the thesis in luding Chapters 2, 3, and 4, the state of the art of the representation and stability analysis of consensus …
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Stability and Performance of Propulsion Control Systems with Distributed Control Architectures and Failures
Future aircraft engine control systems will be based on a distributed architecture, in which, the sensors and actuators will be connected to the Full Authority Digital Engine Control (FADEC) through an engine area network. Distributed engine control architecture will allow the implementation of …
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Control of networked Lagrangian systems with delays
Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2011-04-07T21:54:57Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 2 DissFiles.zip: 17030006 bytes, checksum: 92249adf3a2c3a3a4d466fa347b30556 (MD5) Rodriguez-Seda_Erick.pdf: 4405861 bytes, …