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Robust Control of DC-DC Converters

Author: Farzin Asadi

Publisher: Springer Nature

Published: 2022-05-31

Total Pages: 119

ISBN-13: 3031025032

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DC-DC converters require negative feedback to provide a suitable output voltage or current for the load. Obtaining a stable output voltage or current in the presence of disturbances like input voltage changes and/or output load changes seems impossible without some form of control. This book shows how simple controllers such as Proportional-Integral (PI) can turn into a robust controller by correct selection of its parameters. Kharitonov's theorem is an important tool toward this end. This book consist of two parts. The first part shows how one can obtain the interval plant model of a DC-DC converter. The second part introduces the Kharitonov's theorem. Kharitonov's theorem is an analysis tool rather than a design tool. Some case studies show how it can be used as a design tool. The prerequisite for reading this book is a first course on feedback control theory and power electronics.

Book Synopsis Robust Control of DC-DC Converters by : Farzin Asadi

Download or read book Robust Control of DC-DC Converters written by Farzin Asadi and published by Springer Nature. This book was released on 2022-05-31 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: DC-DC converters require negative feedback to provide a suitable output voltage or current for the load. Obtaining a stable output voltage or current in the presence of disturbances like input voltage changes and/or output load changes seems impossible without some form of control. This book shows how simple controllers such as Proportional-Integral (PI) can turn into a robust controller by correct selection of its parameters. Kharitonov's theorem is an important tool toward this end. This book consist of two parts. The first part shows how one can obtain the interval plant model of a DC-DC converter. The second part introduces the Kharitonov's theorem. Kharitonov's theorem is an analysis tool rather than a design tool. Some case studies show how it can be used as a design tool. The prerequisite for reading this book is a first course on feedback control theory and power electronics.

Modeling Uncertainties in DC-DC Converters with MATLAB® and PLECS®

Author: Farzin Asadi

Publisher: Springer

Published: 2018-11-12

Total Pages: 280

ISBN-13: 9783031008924

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Modeling is the process of formulating a mathematical description of the system. A model, no matter how detailed, is never a completely accurate representation of a real physical system. A mathematical model is always just an approximation of the true, physical reality of the system dynamics. Uncertainty refers to the differences or errors between model and real systems and whatever methodology is used to present these errors will be called an uncertainty model. Successful robust control-system design would depend on, to a certain extent, an appropriate description of the perturbation considered. Modeling the uncertainties in the switch mode DC-DC converters is an important step in designing robust controllers. This book studies different techniques which can be used to extract the uncertain model of DC-DC converters. Once the uncertain model is extracted, robust control techniques such as ∞ and μ synthesis can be used to design the robust controller. The book composed of two case studies. The first one is a buck converter and the second one is a Zeta converter. MATLAB® programming is used extensively throughout the book. Some sections use PLECS® as well. This book is intended to be guide for both academicians and practicing engineers.

Book Synopsis Modeling Uncertainties in DC-DC Converters with MATLAB® and PLECS® by : Farzin Asadi

Download or read book Modeling Uncertainties in DC-DC Converters with MATLAB® and PLECS® written by Farzin Asadi and published by Springer. This book was released on 2018-11-12 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modeling is the process of formulating a mathematical description of the system. A model, no matter how detailed, is never a completely accurate representation of a real physical system. A mathematical model is always just an approximation of the true, physical reality of the system dynamics. Uncertainty refers to the differences or errors between model and real systems and whatever methodology is used to present these errors will be called an uncertainty model. Successful robust control-system design would depend on, to a certain extent, an appropriate description of the perturbation considered. Modeling the uncertainties in the switch mode DC-DC converters is an important step in designing robust controllers. This book studies different techniques which can be used to extract the uncertain model of DC-DC converters. Once the uncertain model is extracted, robust control techniques such as ∞ and μ synthesis can be used to design the robust controller. The book composed of two case studies. The first one is a buck converter and the second one is a Zeta converter. MATLAB® programming is used extensively throughout the book. Some sections use PLECS® as well. This book is intended to be guide for both academicians and practicing engineers.

Robust Linear Control of DC-DC Converters

Author: Carlos Olalla Martínez

Publisher:

Published: 2009

Total Pages: 196

ISBN-13:

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Book Synopsis Robust Linear Control of DC-DC Converters by : Carlos Olalla Martínez

Download or read book Robust Linear Control of DC-DC Converters written by Carlos Olalla Martínez and published by . This book was released on 2009 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Robust Control of Dc-dc Boost Converter

Author: Hisham Mahmood

Publisher:

Published: 2008

Total Pages: 194

ISBN-13:

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"In this thesis, a robust controller comprising of a PI with phase-lead compensator for a DC-DC boost converter designed using classical frequency response method is presented. The superior performance of this controller in comparison with H ∞ and passivity based integral controllers from the literature is shown. The robustness of the controller to boost converter parameter deviations, disturbance magnitudes and polarity which lead to worst case stability is investigated. This approach offers an alternative to the traditional unstructured uncertainty envelop approach used in the literature. Investigation into the nonlinearity arising from parasitic parameters in a boost converter is also presented in this thesis. It is shown that this nonlinearity can cause instability in boost converter control. This nonlinearity makes robust controller design difficult due to the sensitivity to disturbances. Static and dynamic voltage collapses are then studied. New non-iterative formulae are derived using the bilinear averaged model to calculate the voltage collapse point due to the parasitic parameters. Using these simple formulae boost converter stable operating region and disturbance limits can be calculated in the design phase. The use of these formulae for the design of the boost converter control system is studied. Static characteristics formula and the proposed controller performance are verified experimentally. "--Abstract.

Book Synopsis Robust Control of Dc-dc Boost Converter by : Hisham Mahmood

Download or read book Robust Control of Dc-dc Boost Converter written by Hisham Mahmood and published by . This book was released on 2008 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: "In this thesis, a robust controller comprising of a PI with phase-lead compensator for a DC-DC boost converter designed using classical frequency response method is presented. The superior performance of this controller in comparison with H ∞ and passivity based integral controllers from the literature is shown. The robustness of the controller to boost converter parameter deviations, disturbance magnitudes and polarity which lead to worst case stability is investigated. This approach offers an alternative to the traditional unstructured uncertainty envelop approach used in the literature. Investigation into the nonlinearity arising from parasitic parameters in a boost converter is also presented in this thesis. It is shown that this nonlinearity can cause instability in boost converter control. This nonlinearity makes robust controller design difficult due to the sensitivity to disturbances. Static and dynamic voltage collapses are then studied. New non-iterative formulae are derived using the bilinear averaged model to calculate the voltage collapse point due to the parasitic parameters. Using these simple formulae boost converter stable operating region and disturbance limits can be calculated in the design phase. The use of these formulae for the design of the boost converter control system is studied. Static characteristics formula and the proposed controller performance are verified experimentally. "--Abstract.

Dynamics and Control of DC-DC Converters

Author: Farzin Asadi

Publisher: Morgan & Claypool Publishers

Published: 2018-03-08

Total Pages: 243

ISBN-13: 1681732971

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DC-DC converters have many applications in the modern world. They provide the required power to the communication backbones, they are used in digital devices like laptops and cell phones, and they have widespread applications in electric cars, to just name a few. DC-DC converters require negative feedback to provide a suitable output voltage or current for the load. Obtaining a stable output voltage or current in presence of disturbances such as: input voltage changes and/or output load changes seems impossible without some form of control. This book tries to train the art of controller design for DC-DC converters. Chapter 1 introduces the DC-DC converters briefly. It is assumed that the reader has the basic knowledge of DC-DC converter (i.e., a basic course in power electronics). The reader learns the disadvantages of open loop control in Chapter 2. Simulation of DC-DC converters with the aid of Simulink® is discussed in this chapter as well. Extracting the dynamic models of DC-DC converters is studied in Chapter 3. We show how MATLAB® and a software named KUCA can be used to do the cumbersome and error-prone process of modeling automatically. Obtaining the transfer functions using PSIM® is studied as well. These days, softwares are an integral part of engineering sciences. Control engineering is not an exception by any means. Keeping this in mind, we design the controllers using MATLAB® in Chapter 4. Finally, references are provided at the end of each chapter to suggest more information for an interested reader. The intended audiences for this book are practice engineers and academians.

Book Synopsis Dynamics and Control of DC-DC Converters by : Farzin Asadi

Download or read book Dynamics and Control of DC-DC Converters written by Farzin Asadi and published by Morgan & Claypool Publishers. This book was released on 2018-03-08 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: DC-DC converters have many applications in the modern world. They provide the required power to the communication backbones, they are used in digital devices like laptops and cell phones, and they have widespread applications in electric cars, to just name a few. DC-DC converters require negative feedback to provide a suitable output voltage or current for the load. Obtaining a stable output voltage or current in presence of disturbances such as: input voltage changes and/or output load changes seems impossible without some form of control. This book tries to train the art of controller design for DC-DC converters. Chapter 1 introduces the DC-DC converters briefly. It is assumed that the reader has the basic knowledge of DC-DC converter (i.e., a basic course in power electronics). The reader learns the disadvantages of open loop control in Chapter 2. Simulation of DC-DC converters with the aid of Simulink® is discussed in this chapter as well. Extracting the dynamic models of DC-DC converters is studied in Chapter 3. We show how MATLAB® and a software named KUCA can be used to do the cumbersome and error-prone process of modeling automatically. Obtaining the transfer functions using PSIM® is studied as well. These days, softwares are an integral part of engineering sciences. Control engineering is not an exception by any means. Keeping this in mind, we design the controllers using MATLAB® in Chapter 4. Finally, references are provided at the end of each chapter to suggest more information for an interested reader. The intended audiences for this book are practice engineers and academians.

Computer Techniques for Dynamic Modeling of DC-DC Power Converters

Author: Farzin Asadi

Publisher: Springer Nature

Published: 2022-06-01

Total Pages: 75

ISBN-13: 3031025040

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Computers play an important role in the analyzing and designing of modern DC-DC power converters. This book shows how the widely used analysis techniques of averaging and linearization can be applied to DC-DC converters with the aid of computers. Obtained dynamical equations may then be used for control design. The book is composed of two chapters. Chapter 1 focuses on the extraction of control-to-output transfer function. A second-order converter (a buck converter) and a fourth-order converter (a Zeta converter) are studied as illustrative examples in this chapter. Both ready-to-use software packages, such as PLECS® and MATLAB® programming, are used throught this chapter. The input/output characteristics of DC-DC converters are the object of considerations in Chapter 2. Calculation of input/output impedance is done with the aid of MATLAB® programming in this chapter. The buck, buck-boost, and boost converter are the most popular types of DC-DC converters and used as illustrative examples in this chapter. This book can be a good reference for researchers involved in DC-DC converters dynamics and control.

Book Synopsis Computer Techniques for Dynamic Modeling of DC-DC Power Converters by : Farzin Asadi

Download or read book Computer Techniques for Dynamic Modeling of DC-DC Power Converters written by Farzin Asadi and published by Springer Nature. This book was released on 2022-06-01 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computers play an important role in the analyzing and designing of modern DC-DC power converters. This book shows how the widely used analysis techniques of averaging and linearization can be applied to DC-DC converters with the aid of computers. Obtained dynamical equations may then be used for control design. The book is composed of two chapters. Chapter 1 focuses on the extraction of control-to-output transfer function. A second-order converter (a buck converter) and a fourth-order converter (a Zeta converter) are studied as illustrative examples in this chapter. Both ready-to-use software packages, such as PLECS® and MATLAB® programming, are used throught this chapter. The input/output characteristics of DC-DC converters are the object of considerations in Chapter 2. Calculation of input/output impedance is done with the aid of MATLAB® programming in this chapter. The buck, buck-boost, and boost converter are the most popular types of DC-DC converters and used as illustrative examples in this chapter. This book can be a good reference for researchers involved in DC-DC converters dynamics and control.

Robust Average Current-mode Control of Buck DC-DC Converters

Author: Sin Yi Chew

Publisher:

Published: 2005

Total Pages: 58

ISBN-13:

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Book Synopsis Robust Average Current-mode Control of Buck DC-DC Converters by : Sin Yi Chew

Download or read book Robust Average Current-mode Control of Buck DC-DC Converters written by Sin Yi Chew and published by . This book was released on 2005 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Advances in Robust Control and Applications

Author: Nabil Derbel

Publisher: Springer Nature

Published: 2023-09-12

Total Pages: 381

ISBN-13: 981993463X

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The book presents recent applications and developments in the field of control of industrial systems, covering a wide range of modeling and feedback control using various robust approaches such as fuzzy systems, sliding mode control, and H-infinity. This book provides insights into theory, applications, and perspectives relevant to the field of robotic systems, exoskeletons, power systems, photovoltaic systems, etc., as well as general methodologies and paradigms around them. Each chapter provides an enriched understanding of a research topic along with a balanced treatment of the relevant theories, methods, or applications. It reports on the latest advances in the field. This book is a good reference for graduate students, researchers, educators, engineers, and scientists and contains a total of 15 chapters divided into five parts as follows. The first part of this book focuses on the application of fuzzy control to robotic systems and consists of three chapters. The second part of this book proposes the control of lower and upper limb exoskeletons and includes two chapters. The third part is dedicated to the control of power systems and comprises three chapters. The fourth part deals with various approaches to the modeling and control of industrial processes and comprises four chapters. The fifth and final part describes observers and fault-tolerant control systems and comprises five chapters.

Book Synopsis Advances in Robust Control and Applications by : Nabil Derbel

Download or read book Advances in Robust Control and Applications written by Nabil Derbel and published by Springer Nature. This book was released on 2023-09-12 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents recent applications and developments in the field of control of industrial systems, covering a wide range of modeling and feedback control using various robust approaches such as fuzzy systems, sliding mode control, and H-infinity. This book provides insights into theory, applications, and perspectives relevant to the field of robotic systems, exoskeletons, power systems, photovoltaic systems, etc., as well as general methodologies and paradigms around them. Each chapter provides an enriched understanding of a research topic along with a balanced treatment of the relevant theories, methods, or applications. It reports on the latest advances in the field. This book is a good reference for graduate students, researchers, educators, engineers, and scientists and contains a total of 15 chapters divided into five parts as follows. The first part of this book focuses on the application of fuzzy control to robotic systems and consists of three chapters. The second part of this book proposes the control of lower and upper limb exoskeletons and includes two chapters. The third part is dedicated to the control of power systems and comprises three chapters. The fourth part deals with various approaches to the modeling and control of industrial processes and comprises four chapters. The fifth and final part describes observers and fault-tolerant control systems and comprises five chapters.

Robust Control Strategies for Power Electronics in Smart Grid Applications

Author: Yunfei Yin

Publisher: Springer Nature

Published:

Total Pages: 219

ISBN-13: 3031531884

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Book Synopsis Robust Control Strategies for Power Electronics in Smart Grid Applications by : Yunfei Yin

Download or read book Robust Control Strategies for Power Electronics in Smart Grid Applications written by Yunfei Yin and published by Springer Nature. This book was released on with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Recent Advances in Robust Control

Author: Andreas Müller

Publisher: BoD – Books on Demand

Published: 2011-11-21

Total Pages: 412

ISBN-13: 9533074213

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Robust control has been a topic of active research in the last three decades culminating in H_2/H_\infty and \mu design methods followed by research on parametric robustness, initially motivated by Kharitonov's theorem, the extension to non-linear time delay systems, and other more recent methods. The two volumes of Recent Advances in Robust Control give a selective overview of recent theoretical developments and present selected application examples. The volumes comprise 39 contributions covering various theoretical aspects as well as different application areas. The first volume covers selected problems in the theory of robust control and its application to robotic and electromechanical systems. The second volume is dedicated to special topics in robust control and problem specific solutions. Recent Advances in Robust Control will be a valuable reference for those interested in the recent theoretical advances and for researchers working in the broad field of robotics and mechatronics.

Book Synopsis Recent Advances in Robust Control by : Andreas Müller

Download or read book Recent Advances in Robust Control written by Andreas Müller and published by BoD – Books on Demand. This book was released on 2011-11-21 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: Robust control has been a topic of active research in the last three decades culminating in H_2/H_\infty and \mu design methods followed by research on parametric robustness, initially motivated by Kharitonov's theorem, the extension to non-linear time delay systems, and other more recent methods. The two volumes of Recent Advances in Robust Control give a selective overview of recent theoretical developments and present selected application examples. The volumes comprise 39 contributions covering various theoretical aspects as well as different application areas. The first volume covers selected problems in the theory of robust control and its application to robotic and electromechanical systems. The second volume is dedicated to special topics in robust control and problem specific solutions. Recent Advances in Robust Control will be a valuable reference for those interested in the recent theoretical advances and for researchers working in the broad field of robotics and mechatronics.