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This book is the result of a long friendship, of a broad international co- operation, and of a bold dream. It is the summary of work carried out by the authors, and several other wonderful people, during more than 15 years, across 3 continents, in the course of countless meetings, workshops and discus- sions. It shows that neither language nor distance can be an obstacle to close scientific cooperation, when there is unity of goals and true collaboration. When we started, we had very different approaches to handling the mys- terious, almost magical world of asynchronous circuits. Some were more theo- retical, some were closer to physical reality, some were driven mostly by design needs. In the end, we all shared the same belief that true Electronic Design Automation research must be solidly grounded in formal models, practically minded to avoid excessive complexity, and tested "in the field" in the form of experimental tools. The results are this book, and the CAD tool petrify. The latter can be downloaded and tried by anybody bold (or desperate) enough to tread into the clockless (but not lawless) domain of small-scale asynchronicity. The URL is http://www.lsi. upc. esr j ordic/petrify. We believe that asynchronous circuits are a wonderful object, that aban- dons some of the almost militaristic law and order that governs synchronous circuits, to improve in terms of simplicity, energy efficiency and performance.
These proceedings contain papers presented at the IFAC Symposium on Robust Control Design (ROCOND'97) held in Budapest, Hungary between 25-27 June 1997.
Recognising the benefits of improved control, the second edition of Autotuning of PID Controllers provides simple yet effective methods for improving PID controller performance. The practical issues of controller tuning are examined using numerous worked examples and case studies in association with specially written autotuning MATLAB(r) programs to bridge the gap between conventional tuning practice and novel autotuning methods.
The extensively revised second edition expands and refines on important work in the ubiquitous PID form of control with material covering:
Autotuning of PID Controllers is more than just a monograph, it is an independent learning tool applicable to the work of academic control engineers and of their counterparts in industry looking for more effective process control and automation.
Comments on the first edition:
This book is written in a way which not only makes it easy to understand but is also useful to those interested in or working with PID controllers.
The book will be useful to manufacturers and users of control equipment, and also to researchers in the field of automatic tuning.
Algorithms for VLSI Physical Design Automation, Third Edition covers all aspects of physical design. The book is a core reference for graduate students and CAD professionals. For students, concepts and algorithms are presented in an intuitive manner. For CAD professionals, the material presents a balance of theory and practice. An extensive bibliography is provided which is useful for finding advanced material on a topic. At the end of each chapter, exercises are provided, which range in complexity from simple to research level.
This book presents a detailed but easily understood development of the complex variable form of the equations describing AC machines. These equations are then extended to incorporate inverter models and a number of examples of inverter-machine dynamics are presented. A section on constant speed behaviour includes development of the conventional equivalent circuits and an extensive treatment of the constant speed eigenvalues and switching transients. Vector control and field orientation concepts are first introduced in terms of their steady state properties. This allows anyone with a basic understanding of steady state machine behaviour to understand and appreciate the potential of field orientation and to actually start using the book immediately. This is followed by a full dynamic analysis of vector controlled systems including conventional indirect and direct field orientation and less conventional systems that orient to air gap or stator flux rather than rotor flux. A chapter on the important types of current regulators is also included. The final two chapters deal with vector control and field orientation system performance in relation to tuning errors, saturation effects, selection of flux levels to optimize performance and the question of optimization in the field weakening mode.
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