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This book provides a unique approach to derive model-based torque controllers for all types of Lorentz force machines, i.e. DC, synchronous and induction machines. The rotating transformer model forms the basis for the generalized modeling approach of rotating field machines, which leads to the development of universal field-oriented control algorithms. Contrary to this, direct torque control algorithms, using observer-based methods, are developed for switched reluctance machines. Tutorials are included at the end of each chapter, and the reader is encouraged to execute these tutorials in order to gain familiarity with the dynamic behavior of drive systems. This updated edition uses PLECS® ...
The purpose of this book is to familiarize the reader with all aspects of electrical drives. It contains a comprehensive user-friendly introductory text.
Electrical drives convert in a controlled manner, electrical energy into mechanical energy. Electrical drives comprise an electrical machine, i.e. an electro-mechanical energy converter, a power electronic converter, i.e. an electrical-to-electrical converter, and a controller/communication unit. Today, electrical drives are used as propulsion systems in high-speed trains, elevators, escalators, electric ships, electric forklift trucks and electric vehicles. Advanced control algorithms (mostly digitally implemented) allow torque control over a high-bandwidth. Hence, precise motion control can be achieved. Examples are drives in robots, pick-and-place machines, factory automation hardware, et...
A concise and hands-on overview of medium voltage direct current (MVDC) technology for electric power grids, written by international experts with broad experience. The book covers fundamentals, converters, transformers and control for both stationary and mobile applications.
This is the biggest, most comprehensive, and most prestigious compilation of articles on control systems imaginable. Every aspect of control is expertly covered, from the mathematical foundations to applications in robot and manipulator control. Never before has such a massive amount of authoritative, detailed, accurate, and well-organized information been available in a single volume. Absolutely everyone working in any aspect of systems and controls must have this book!
This book discusses semiconductor properties, pn-junctions and the physical phenomena for understanding power devices in depth. Working principles of state-of-the-art power diodes, thyristors, MOSFETs and IGBTs are explained in detail, as well as key aspects of semiconductor device production technology. Special peculiarities of devices from the ascending semiconductor materials SiC and GaN are discussed. This book presents significant improvements compared to its first edition. It includes chapters on packaging and reliability. The chapter on semiconductor technology is written in a more in-depth way by considering 2D- and high concentration effects. The chapter on IGBTs is extended by new technologies and evaluation of its potential. An extended theory of cosmic ray failures is presented. The range of certain important physical relationships, doubted in recent papers for use in device simulation, is cleared and substantiated in this second edition.
Control technology permeates every aspect of our lives. We rely on them to perform a wide variety of tasks without giving much thought to the origins of the technology or how it became such an important part of our lives. Control System Applications covers the uses of control systems, both in the common and in the uncommon areas of our lives. From the everyday to the unusual, it's all here. From process control to human-in-the-loop control, this book provides illustrations and examples of how these systems are applied. Each chapter contains an introduction to the application, a section defining terms and references, and a section on further readings that help you understand and use the techniques in your work environment. Highly readable and comprehensive, Control System Applications explores the uses of control systems. It illustrates the diversity of control systems and provides examples of how the theory can be applied to specific practical problems. It contains information about aspec ts of control that are not fully captured by the theory, such as techniques for protecting against controller failure and the role of cost and complexity in specifying controller designs.
Along with the increasing deregulation of European utility markets the dynamics of and the competitive pressure in the utility industries have steadily increased over the last years. These changes in the regulatory framework towards an integrated market environment have resulted in new challenges for the management of power and gas companies and in a substantial need for strategic reorientation. In the context of these developments the Handbook Utility Management reflects current challenges in the utility industries and provides solutions from a managerial perspective. The inclusion of latest insights from top managers, renowned researchers, professionals in utility-related investment banking and consulting, and professionals in public and supranational organizations on all value chain activities within the industry makes the Handbook an indispensable asset for both professionals and researchers.
The conference proceedings of the 4th Conference for Wind Power Drives (CWD) contains the collected contributions of the congress which took place on the 12th and 13th of March, 2019. The latest developments and innovations are presented in 37 articles covering the following topics: Gearbox - Torque Density, Gearbox - System Performance, Grid Conformity, Generator, Drive Train Concepts, Roller Bearings - Design and Testing, Roller Bearings - Loads, Wind 4.0 - Potential of Data Analytics, Wind 4.0 - Predictive Maintenance & Reliability, Plain Bearings and Condition Monitoring. The CWD has been held every two years since 2013 and acts as an interdisciplinary platform for knowledge and technology transfer between developers, researchers and operators. Furthermore, the conference promotes networking between industry and university in the field of wind turbine drive trains. The conference is supported by Mechanical Engineering Industry Association (VDMA) the Research Association for Drive Technology (FVA) and the IEEE Power Electronics Society.
Electrical drives lie at the heart of most industrial processes and make a major contribution to the comfort and high quality products we all take for granted. They provide the controller power needed at all levels, from megawatts in cement production to milliwatts in wrist watches. Other examples are legion, from the domestic kitchen to public utilities. The modern electrical drive is a complex item, comprising a controller, a static converter and an electrical motor. Some can be programmed by the user. Some can communicate with other drives. Semiconductor switches have improved, intelligent power modules have been introduced, all of which means that control techniques can be used now that were unimaginable a decade ago. Nor has the motor side stood still: high-energy permanent magnets, semiconductor switched reluctance motors, silicon micromotor technology, and soft magnetic materials produced by powder technology are all revolutionising the industry. But the electric drive is an enabling technology, so the revolution is rippling throughout the whole of industry.