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Advanced Electric Drives

Author: Ned Mohan
Publisher:
ISBN: 9781118910962
Size: 37.43 MB
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"Comprehensive explanation of how electric drives operate under dynamic conditions"--

Advanced Electric Drives

Author: Ned Mohan
Publisher: John Wiley & Sons
ISBN: 111891113X
Size: 21.23 MB
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With nearly two-thirds of global electricity consumed by electricmotors, it should come as no surprise that their proper controlrepresents appreciable energy savings. The efficient use ofelectric drives also has far-reaching applications in such areas asfactory automation (robotics), clean transportation(hybrid-electric vehicles), and renewable (wind and solar) energyresource management. Advanced Electric Drives utilizes aphysics-based approach to explain the fundamental concepts ofmodern electric drive control and its operation under dynamicconditions. Author Ned Mohan, a decades-long leader in ElectricalEnergy Systems (EES) education and research, reveals how theinvestment of proper controls, advanced MATLAB and Simulinksimulations, and careful forethought in the design of energysystems translates to significant savings in energy and dollars.Offering students a fresh alternative to standard mathematicaltreatments of dq-axis transformation of a-b-c phase quantities,Mohan’s unique physics-based approach“visualizes” a set of representative dq windings alongan orthogonal set of axes and then relates their currents andvoltages to the a-b-c phase quantities. Advanced ElectricDrives is an invaluable resource to facilitate an understandingof the analysis, control, and modelling of electric machines. • Gives readers a “physical” picture ofelectric machines and drives without resorting to mathematicaltransformations for easy visualization • Confirms the physics-based analysis of electric drivesmathematically • Provides readers with an analysis of electric machinesin a way that can be easily interfaced to common power electronicconverters and controlled using any control scheme • Makes the MATLAB/Simulink files used in examplesavailable to anyone in an accompanying website • Reinforces fundamentals with a variety of discussionquestions, concept quizzes, and homework problems

W Rmetechnik

Author: Klaus Endrullat
Publisher: Springer-Verlag
ISBN: 3662070278
Size: 45.61 MB
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Die rationelle Energieverwendung im Bereich wärmetechnischer Systeme hat im mittel europäischen Raum einen hohen Stellenwert, da bei der überwiegenden Anzahl der Haus halte und Gewerbebetriebe der Energieverbrauch zur Wärmeerzeugung den größten An teil am Gesamtenergieverbrauch hat. Das Ziel des vorliegenden Bandes ist es, dem Leser die Vorgehensweise 'zur Beurteilung wärmetechnischer Systeme und energiesparender Maßnahmen zu vermitteln. Schwerpunktmäßig werden die Heiz- und Raumlufttechnik im Umfeld des Menschen behandelt, während das Gebiet der Prozeßwärme für die indu strielle Anwendung aus Gründen des Umfanges nur ansatzweise erörtert werden konnte. Der Anspruch dieses Buches liegt auf einer Ebene, welche bewußt nicht die Einzellösung hervorhebt, da sich das Optimum eines Gesamtsystems noch längst nicht einstellen muß, wenn die Teilsysteme optimiert sind. Das Verständnis der Verzahntheit des vorliegenden Gebietes mit anderen Fachgebieten ist deshalb eine wesentliche Voraussetzung für ko ordinierte Maßnahmen zur rationellen Energieverwendung. Diesem Umstand wird durch zahlreiche qualitative Systembetrachtungen und Zahlenbeispiele Rechnung getragen. Im ersten Abschnitt werden die speziellen Grundlagen der Heiz- und Raumlufttechnik be handelt. Dazu zählen Kenntnisse über technische Funktionsabläufe und die Behaglich keitsanforderungen des Menschen, zu deren Aufrechterhaltung diese Anlagen gebaut werden. Anlagentechnische Maßnahmen zur Energieeinsparung müssen sich immer an der Erfüllung der Behaglichkeitsanforderungen messen lassen. Weiterhin gehört es auch zu einer wirkungsvollen Energieberatung, Maßnahmen an gebäudetechnischen Anlagen als Teilmaßnahme am Gesamtsystem Gebäude zu verstehen, weil durch den Umfang der Systemverbesserung (energetisch-ökonomisch) letztlich die Rangfolge der durchzuführen den Maßnahmen bestimmt wird.

Advanced Electrical Drives

Author: Rik De Doncker
Publisher: Springer Science & Business Media
ISBN: 9789400701816
Size: 11.34 MB
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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, etc. Most drives can operate in motoring and generating mode. Wind turbines use electrical drives to convert wind energy into electrical energy. More and more, variable speed drives are used to save energy for example, in air-conditioning units, compressors, blowers, pumps and home appliances. Key to ensure stable operation of a drive in the aforementioned applications are torque control algorithms. In Advanced Electrical Drives, a unique approach is followed 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 this generalized modeling approach that ultimately leads to the development of universal field-oriented control algorithms. In case of switched reluctance machines, torque observers are proposed to implement direct torque algorithms. From a didactic viewpoint, tutorials are included at the end of each chapter. The reader is encouraged to execute these tutorials to familiarize him or herself with all aspects of drive technology. Hence, Advanced Electrical Drives encourages “learning by doing”. Furthermore, the experienced drive specialist may find the simulation tools useful to design high-performance controllers for all sorts of electrical drives.

Regelung Elektrischer Antriebe

Author: Werner Leonhard
Publisher: Springer-Verlag
ISBN: 3642573282
Size: 64.76 MB
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Leistungselektronisch gespeiste und mikroelektronisch geregelte elektrische Antriebe sind dynamisch hochwertige und universell einsetzbare elektromechanische Energiewandler, die heute in vielfältigen Ausführungsformen in weiten Bereichen von Drehmoment, Drehzahl und Leistung zur Verfügung stehen. Von besonderer Bedeutung sind kommutatorlose Drehstrom-Regelantriebe, die erst mit vektoriellen Verfahren und einer digital verwirklichten Regelungstechnik möglich wurden. Das Buch enthält eine zusammenfassende theoretische Darstellung elektrischer Regelantriebe einschließlich der leistungselektronischen Umrichter, von klassischen Gleichstromantrieben bis zu digital geregelten Drehstromantrieben. Die beschriebenen Verfahren werden durch experimentelle Ergebnisse belegt; Anwendungen sind anhand von Beispielen diskutiert.

High Performance Control Of Ac Drives With Matlab Simulink Models

Author: Haitham Abu-Rub
Publisher: John Wiley & Sons
ISBN: 1119942101
Size: 50.57 MB
Format: PDF, Kindle
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A comprehensive guide to understanding AC machines with exhaustive simulation models to practice design and control Nearly seventy percent of the electricity generated worldwide is used by electrical motors. Worldwide, huge research efforts are being made to develop commercially viable three- and multi-phase motor drive systems that are economically and technically feasible. Focusing on the most popular AC machines used in industry – induction machine and permanent magnet synchronous machine – this book illustrates advanced control techniques and topologies in practice and recently deployed. Examples are drawn from important techniques including Vector Control, Direct Torque Control, Nonlinear Control, Predictive Control, multi-phase drives and multilevel inverters. Key features include: systematic coverage of the advanced concepts of AC motor drives with and without output filter; discussion on the modelling, analysis and control of three- and multi-phase AC machine drives, including the recently developed multi-phase-phase drive system and double fed induction machine; description of model predictive control applied to power converters and AC drives, illustrated together with their simulation models; end-of-chapter questions, with answers and PowerPoint slides available on the companion website www.wiley.com/go/aburub_control This book integrates a diverse range of topics into one useful volume, including most the latest developments. It provides an effective guideline for students and professionals on many vital electric drives aspects. It is an advanced textbook for final year undergraduate and graduate students, and researchers in power electronics, electric drives and motor control. It is also a handy tool for specialists and practicing engineers wanting to develop and verify their own algorithms and techniques.

Modeling Power Electronics And Interfacing Energy Conversion Systems

Author: M. Godoy Simoes
Publisher: John Wiley & Sons
ISBN: 1119058473
Size: 11.22 MB
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Discusses the application of mathematical and engineering tools for modeling, simulation and control oriented for energy systems, power electronics and renewable energy This book builds on the background knowledge of electrical circuits, control of dc/dc converters and inverters, energy conversion and power electronics. The book shows readers how to apply computational methods for multi-domain simulation of energy systems and power electronics engineering problems. Each chapter has a brief introduction on the theoretical background, a description of the problems to be solved, and objectives to be achieved. Block diagrams, electrical circuits, mathematical analysis or computer code are covered. Each chapter concludes with discussions on what should be learned, suggestions for further studies and even some experimental work. Discusses the mathematical formulation of system equations for energy systems and power electronics aiming state-space and circuit oriented simulations Studies the interactions between MATLAB and Simulink models and functions with real-world implementation using microprocessors and microcontrollers Presents numerical integration techniques, transfer-function modeling, harmonic analysis and power quality performance assessment Examines existing software such as, MATLAB/Simulink, Power Systems Toolbox and PSIM to simulate power electronic circuits including the use of renewable energy sources such as wind and solar sources The simulation files are available for readers who register with the Google Group: [email protected]oups.com. After your registration you will receive information in how to access the simulation files, the Google Group can also be used to communicate with other registered readers of this book.

Systeme Der Regelungstechnik Mit Matlab Und Simulink

Author: Helmut Bode
Publisher: Walter de Gruyter
ISBN: 3486769707
Size: 51.10 MB
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Das Werk behandelt die Einsatzmöglichkeiten von MATLAB® und Simulink® in der Regelungstechnik zur Analyse und Simulation dynamischer Systeme. Exemplarische regelungstechnische Probleme werden modelliert und simuliert. Aufgrund der sehr elementaren Darstellung ist das Buch ausgezeichnet für den Einsatz in der Lehre geeignet. Die eingesetzten MATLAB®-Codes stehen zum Download bereit. Die 2., aktualisierte Auflage ist an die aktuelle MATLAB®-Version 8.1.0.604 (R2013a) angepasst.

Pid And Predictive Control Of Electrical Drives And Power Converters Using Matlab Simulink

Author: Liuping Wang
Publisher: John Wiley & Sons
ISBN: 1118339444
Size: 77.82 MB
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A timely introduction to current research on PID and predictive control by one of the leading authors on the subject PID and Predictive Control of Electric Drives and Power Supplies using MATLAB/Simulink examines the classical control system strategies, such as PID control, feed-forward control and cascade control, which are widely used in current practice. The authors share their experiences in actual design and implementation of the control systems on laboratory test-beds, taking the reader from the fundamentals through to more sophisticated design and analysis. The book contains sections on closed-loop performance analysis in both frequency domain and time domain, presented to help the designer in selection of controller parameters and validation of the control system. Continuous-time model predictive control systems are designed for the drives and power supplies, and operational constraints are imposed in the design. Discrete-time model predictive control systems are designed based on the discretization of the physical models, which will appeal to readers who are more familiar with sampled-data control system. Soft sensors and observers will be discussed for low cost implementation. Resonant control of the electric drives and power supply will be discussed to deal with the problems of bias in sensors and unbalanced three phase AC currents. Brings together both classical control systems and predictive control systems in a logical style from introductory through to advanced levels Demonstrates how simulation and experimental results are used to support theoretical analysis and the proposed design algorithms MATLAB and Simulink tutorials are given in each chapter to show the readers how to take the theory to applications. Includes MATLAB and Simulink software using xPC Target for teaching purposes A companion website is available Researchers and industrial engineers; and graduate students on electrical engineering courses will find this a valuable resource.