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Control of Dead-time Processes
This text introduces the fundamental techniques for controlling dead-time processes from simple monovariable to complex multivariable cases. Dead-time-process-control problems are studied using classical proportional-integral-differential (PID) control for the simpler examples and dead-time-compensator (DTC) and model predictive control (MPC) methods for progressively more complex ones. Downloadable MATLAB® code makes the examples and ideas more convenient and simpler.
Advances in Renewable Energies and Power Quality
This volume brings together contributions dealing with renewable energies and power quality, presented over five years of the International Conference on Renewable Energy and Power Quality (ICREPQ). It contains a selection of the best papers and original contributions presenting state-of-the-art research in the field of renewable energy sources. Including some of the leading authorities in their areas of expertise, the contributors to the volume are drawn from across the globe, with about 300 authors from 60 different countries.
Feedforward Control
While there are thousands of books written about feedback control, it is surprising that this is the very first book about feedforward control. Feedforward control is a very powerful technique to compensate for measurable load disturbances in regulation control problems, and the use of feedforward control to assist the traditional feedback controllers is rapidly increasing in industry. The main goal of this book is to describe the power of feedforward control and to present different tuning rules for these controllers. To achieve this goal, theoretical and practical contributions are presented throughout the book to make the technique understandable and easy to implement. The book contains many practical aspects, both in terms of tuning and implementation of the feedforward controller. Many simulation examples are also provided, as well as a presentation of industrial experiences obtained from feedforward control applied to temperature control in greenhouses. For these reasons, we believe that the book will be useful not only at various levels in the teaching systems, but also for engineers working in industry.
Modeling and Control of Greenhouse Crop Growth
A discussion of challenges related to the modeling and control of greenhouse crop growth, this book presents state-of-the-art answers to those challenges. The authors model the subsystems involved in successful greenhouse control using different techniques and show how the models obtained can be exploited for simulation or control design; they suggest ideas for the development of physical and/or black-box models for this purpose. Strategies for the control of climate- and irrigation-related variables are brought forward. The uses of PID control and feedforward compensators, both widely used in commercial tools, are summarized. The benefits of advanced control techniques—event-based, robust...
Time Delay Systems: Methods, Applications and New Trends
This volume is concerned with the control and dynamics of time delay systems; a research field with at least six-decade long history that has been very active especially in the past two decades. In parallel to the new challenges emerging from engineering, physics, mathematics, and economics, the volume covers several new directions including topology induced stability, large-scale interconnected systems, roles of networks in stability, and new trends in predictor-based control and consensus dynamics. The associated applications/problems are described by highly complex models, and require solving inverse problems as well as the development of new theories, mathematical tools, numerically-tractable algorithms for real-time control. The volume, which is targeted to present these developments in this rapidly evolving field, captures a careful selection of the most recent papers contributed by experts and collected under five parts: (i) Methodology: From Retarded to Neutral Continuous Delay Models, (ii) Systems, Signals and Applications, (iii): Numerical Methods, (iv) Predictor-based Control and Compensation, and (v) Networked Control Systems and Multi-agent Systems.
Control of Integral Processes with Dead Time
Control of Integral Processes with Dead Time provides a unified and coherent review of the various approaches devised for the control of integral processes, addressing the problem from different standpoints. In particular, the book treats the following topics: How to tune a PID controller and assess its performance; How to design a two-degree-of-freedom control scheme in order to deal with both the set-point following and load disturbance rejection tasks; How to modify the basic Smith predictor control scheme in order to cope with the presence of an integrator in the process; and how to address the presence of large process dead times. The methods are presented sequentially, highlighting the evolution of their rationale and implementation and thus clearly characterising them from both academic and industrial perspectives.
Linear Time Delay Systems 1998
There exists today an increasing interest in the study of time delay systems because delayed systems are encountered frequently in practice and time delays are often a source of instability. The first workshop in this rapidly growing field of time delay systems was organized by the Laboratoire d'Automatique de Grenoble, France and sponsored by the IFAC Technical Committee on Linear Systems. The 50 participants had the possibility to attend 4 plenary sessions and 2 invited sessions as well as 30 contributed papers selected from 40 submitted papers coming from 17 countries. The technical papers, arranged in 11 sessions, covered the field of linear time delay systems, including algebraic and structural properties, stability analysis, stabilization, Hinf control, robust stabilization and some applications.
Applications of Power Electronics
Power electronics technology is still an emerging technology, and it has found its way into many applications, from renewable energy generation (i.e., wind power and solar power) to electrical vehicles (EVs), biomedical devices, and small appliances, such as laptop chargers. In the near future, electrical energy will be provided and handled by power electronics and consumed through power electronics; this not only will intensify the role of power electronics technology in power conversion processes, but also implies that power systems are undergoing a paradigm shift, from centralized distribution to distributed generation. Today, more than 1000 GW of renewable energy generation sources (phot...
Frequenzselektive Aktivfilterung von Stromoberschwingungen mit einer erweiterten modellbasierten Prädiktivregelung
Modellpradiktive Regelungen waren bisher aufgrund der erforderlichen hohen Rechenleistung in ihrem Anwendungsbereich auf Regelstrecken mit niedrigen Abtastraten beschrankt. Durch die Verfugbarkeit schneller Rechenhardware wurde bereits ein Verfahren dieser Klasse von Reglern erfolgreich bei der feldorientierten Regelung von Asynchronmaschienen erprobt. In dieser Arbeit wird der Einsatz einer modellbasierten Pradiktivregelung zur frequenzselektiven Aktivfilterung von Stromoberschwingungen untersucht. Hierzu wird ein Wechsel von der bisher ublichen Regelung von Gleichgrossen zu einer Regelung mehrerer uberlagerter Sinusschwingungen durch Hinzufugen von dynamischen Modellen der Fuhrungsgrosse z...
