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Linear Parameter Varying Control of Time-delayed Systems and an Application to Air-fuel Ratio Control

2014 Mechanical engineering
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Release : 2014
Genre : Mechanical engineering
Kind : eBook
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Book Synopsis Linear Parameter Varying Control of Time-delayed Systems and an Application to Air-fuel Ratio Control by : Serdar Coskun

Download or read book Linear Parameter Varying Control of Time-delayed Systems and an Application to Air-fuel Ratio Control written by Serdar Coskun. This book was released on 2014. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis one of the recently developed gain scheduling control methods, the linear parameter varying (LPV) technique is demonstrated. Starting from the basic definitions of an LMI, important derivations of time delayed control design conditions are derived. In subsequent steps, a motivating example is shown such that the stability and performance of the system is guaranteed in the full operating envelope. The thesis consists of methods and derivations to address time-delayed LPV plants. The synthesis conditions show that the proposed controllers are not only capable of compensating the delay bound but also its rate variation bound. A main benefit of the obtained controllers is that the scheduling of the parameters lead to a robust behavior even for large delay variation and rate. Numerical examples are used to compare the past methods and the current results on the analysis and control design of the same system. Finally the internal combustion engine air-fuel ratio problem is investigated with the help of the derived output-feedback controller design results. The same problem is addressed with a Smith Predictor based Internal Model Control technique to satisfy desired transient and steady-state response characteristics. The LPV control shows better performance compared to the IMC method for small values of the delay. Simulations are used to evaluate the results for larger values of the delay. For large values of the delay the bounds on the Lyapunov –Krasovskii approach introduce some conservatism in the control design and thus, performance specifications are compromised.

Linear Parameter-Varying and Time-Delay Systems

2014-09-03 Technology & Engineering
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Release : 2014-09-03
Genre : Technology & Engineering
Kind : eBook
Book Rating : 504/5 ( reviews)

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Book Synopsis Linear Parameter-Varying and Time-Delay Systems by : Corentin Briat

Download or read book Linear Parameter-Varying and Time-Delay Systems written by Corentin Briat. This book was released on 2014-09-03. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an introduction to the analysis and control of Linear Parameter-Varying Systems and Time-Delay Systems and their interactions. The purpose is to give the readers some fundamental theoretical background on these topics and to give more insights on the possible applications of these theories. This self-contained monograph is written in an accessible way for readers ranging from undergraduate/PhD students to engineers and researchers willing to know more about the fields of time-delay systems, parameter-varying systems, robust analysis, robust control, gain-scheduling techniques in the LPV fashion and LMI based approaches. The only prerequisites are basic knowledge in linear algebra, ordinary differential equations and (linear) dynamical systems. Most of the results are proved unless the proof is too complex or not necessary for a good understanding of the results. In the latter cases, suitable references are systematically provided. The first part pertains on the representation, analysis and control of LPV systems along with a reminder on robust analysis and control techniques. The second part is concerned with the representation and analysis of time-delay systems using various time-domain techniques. The third and last part is devoted to the representation, analysis, observation, filtering and control of LPV time-delay systems. The book also presents many important basic and advanced results on the manipulation of LMIs.

Linear Parameter-Varying Control for Engineering Applications

2013-03-30 Technology & Engineering
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Release : 2013-03-30
Genre : Technology & Engineering
Kind : eBook
Book Rating : 406/5 ( reviews)

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Book Synopsis Linear Parameter-Varying Control for Engineering Applications by : Andrew P. White

Download or read book Linear Parameter-Varying Control for Engineering Applications written by Andrew P. White. This book was released on 2013-03-30. Available in PDF, EPUB and Kindle. Book excerpt: The subject of this brief is the application of linear parameter-varying (LPV) control to a class of dynamic systems to provide a systematic synthesis of gain-scheduling controllers with guaranteed stability and performance. An important step in LPV control design, which is not well covered in the present literature, is the selection of weighting functions. The proper selection of weighting functions tunes the controller to obtain the desired closed-loop response. The selection of appropriate weighting functions is difficult and sometimes appears arbitrary. In this brief, gain-scheduling control with engineering applications is covered in detail, including the LPV modeling, the control problem formulation, and the weighting function optimization. In addition, an iterative algorithm for obtaining optimal output weighting functions with respect to the H2 norm bound is presented in this brief. Using this algorithm, the selection of appropriate weighting functions becomes an automatic process. The LPV design and control synthesis procedures in this brief are illustrated using: • air-to-fuel ratio control for port-fuel-injection engines; • variable valve timing control; and • application to a vibration control problem. After reading this brief, the reader will be able to apply its concepts to design gain-scheduling controllers for their own engineering applications. This brief provides detailed step-by-step LPV modeling and control design strategies along with an automatic weight-selection algorithm so that engineers can apply state-of-the-art LPV control synthesis to solve their own engineering problems. In addition, this brief should serve as a bridge between the H-infinity and H2 control theory and the real-world application of gain-scheduling control.

Linear Parameter-Varying and Time-Delay Systems

2014-09-30
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Release : 2014-09-30
Genre :
Kind : eBook
Book Rating : 513/5 ( reviews)

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Book Synopsis Linear Parameter-Varying and Time-Delay Systems by : Corentin Briat

Download or read book Linear Parameter-Varying and Time-Delay Systems written by Corentin Briat. This book was released on 2014-09-30. Available in PDF, EPUB and Kindle. Book excerpt:

Linear Parameter-varying Sliding Mode Control of State Delayed Systems with Application to Delta Wing Vortex Coupled Dynamics

2005
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Release : 2005
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Book Synopsis Linear Parameter-varying Sliding Mode Control of State Delayed Systems with Application to Delta Wing Vortex Coupled Dynamics by : Ming Yang

Download or read book Linear Parameter-varying Sliding Mode Control of State Delayed Systems with Application to Delta Wing Vortex Coupled Dynamics written by Ming Yang. This book was released on 2005. Available in PDF, EPUB and Kindle. Book excerpt:

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