Download or read book Elektrische Antriebstechnik written by Manfred Meyer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modern Electrical Drives written by H. Bülent Ertan and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 766 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Design and comparison of two brushless DC drives for an electric propulsion system of solar power unmanned aerial vehicles written by Dong, Rong and published by Universitätsverlag der TU Berlin. This book was released on 2020-08-26 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: The electrical propulsion system as the core component of solar-power Unmanned Aerial Vehicles (UAVs) for long duration flight requires high power density and stable drive technology. Brushless DC motors (BLDCM) with high power and torque density and control algorithms suitable for drive system are given preference for the application in UAVs. This dissertation is aimed at designing an improved BLDCM using only 4 interior magnet blocks to realize 8 poles compared to the conventional 8 magnet blocks structure. The performances of both BLDCM designs have been analytically determined and the motor models were verified through finite element software in ANSYS. Design and construction of the demonstrators of BLDCMs with the proposed and the conventional magnet structure have been carried out and a test bench for extensive performance comparison has been set up. Since the proposed magnet structure leads to a particularity of the magnetic circuit, the behavior of absolute and differential synchronous direct and quadrature inductances have been investigated by finite element model analysis and experiments. Efficiency maps were generated and thermal characteristics have been measured to gain a comprehensive understanding of the two motors. To reduce the uncertainty of sensor control for BLDCM, a high speed, good linearity analog isolation circuit to measure the voltages of 270 V DC voltage to realize sensorless control strategy has been designed. The circuit combines a PI controller with fast operational amplifiers with a built-in linearizing feedback photodiode loop of a linear optocoupler. A 3D stator model was built to analyse the mechanical resonance frequencies and possible excitation by the electromagnetic radial force leading to vibration and noise for the proposed and conventional rotor structure. Analytical calculation of natural mode frequencies has also been conducted to compare and validate the accuracy of FEM simulations and impact hammer testing experimental results. Das elektrische Antriebssystem als Kernkomponente von unbemannten Solarflugzeugen (UAVs, Unmanned Aerial Vehicles) für Langzeitflüge erfordert eine hohe Leistungsdichte und robuste Antriebstechnik. Bürstenlose Gleichstrommotoren (BLDCM) mit hoher Leistungs- und Drehmomentdichte sowie dafür angepasste Regelalgorithmen werden daher bevorzugt in UAVs eingesetzt. Diese Dissertation zielt darauf ab, einen verbesserten BLDCM mit nur 4 eingebetteten Magnetblöcken zu entwerfen, um 8 Pole zu realisieren im Vergleich zu der herkömmlichen Struktur mit 8 Magnetblöcken. Das Verhalten beider BLDCM-Designs wurde analytisch ermittelt und die Motormodelle mit Hilfe von Finite-Elemente-Software in ANSYS verifiziert. Design und Konstruktion der Prototypen mit der vorgeschlagenen und der herkömmlichen Magnetstruktur wurden durchgeführt und es wurde ein Prüfstand für einen umfassenden Leistungsvergleich aufgebaut. Da die vorgeschlagene Magnetstruktur zu einem Magnetkreis führt, bei dem die entgegengesetzten Pole keine Spiegelsymmetrie aufweisen, wurden die Längs- und Querinduktivität durch Finite-Elemente-Modellanalyse und Experimente absolut und differentiell untersucht. Weiterhin wurden Wirkungsgradkennfelder erstellt und das thermische Verhalten untersucht, um ein umfassendes Verständnis der beiden Motoren zu erhalten. Um das sensorbedingte Ausfallrisiko zu eliminieren, wurde eine schnelle analoge Isolationsschaltung mit hoher Linearität und Stabilität zur Messung der gepulsten Spannungen bei 270V Gleichspannung entwickelt, um eine sensorlose Steuerungsstrategie zu realisieren. Die Schaltung verwendet einen linearen Optokoppler mit integrierter Rückkopplungsfotodiode, sowie einen PI-Regler mit schnellen Operationsverstärkern im Rückkopplungspfad. Ein 3D-Statormodell wurde erstellt, um die mechanischen Resonanzfrequenzen und die mögliche Anregung durch die elektromagnetische Radialkraft zu analysieren, die zu Vibrationen und Geräuschen bei der vorgeschlagenen und herkömmlichen Rotorstruktur führt. Es wurde auch eine analytische Modalanalyse durchgeführt, um die Genauigkeit von FEM-Simulationen und experimentellen Ergebnissen mit dem Impulshammer zu vergleichen und zu validieren.
Download or read book Engineering Abstracts written by and published by . This book was released on 1912 with total page 1138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Intelligent Observer and Control Design for Nonlinear Systems written by Dierk Schröder and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: This application-oriented monograph focuses on a novel and complex type of control systems. Written on an engineering level, including fundamentals, advanced methods and applications, the book applies techniques originating from new methods such as artificial intelligence, fuzzy logic, neural networks etc.
Download or read book Machine Tools Production Systems 3 written by Christian Brecher and published by Springer Nature. This book was released on 2021-12-13 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first part of this third volume focuses on the design of mechatronic components, in particular the feed drives of machine tools used to generate highly dynamic drive movements. Engineering guides for the selection and design of important machine components, the control technology of feed drives, and the measuring systems required for position capture are presented. Another focus is on process and diagnostic equipment for manufacturing machines and systems. The second part describes control concepts including programming methods for various applications of modern production systems. Programmable logic controllers (PLC), numerical controllers (NC) and robot controllers (RC) are part of these presentations. In the context of automated manufacturing systems, the various levels of the automation pyramid and the importance of control systems are also outlined. Finally, the volume deals with the engineering of machines and plants. The German Machine Tools and Production Systems Compendium has been completely revised. The previous five-volume series has been condensed into three volumes in the new ninth edition with colored technical illustrations throughout. This first English edition is a translation of the German ninth edition.
Download or read book The Dynamics of Vehicles on Roads and on Tracks written by Hans True and published by CRC Press. This book was released on 2003-01-01 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt: A collection of the papers from the 17th Symposium of the International Association for Vehicle System Dynamics, held in 2001. This scientific symposium seeks to provide specialists and scientists in the field with a forum to exchange and discuss their experiences and ideas.
Download or read book Understanding Wind Power Technology written by Alois Schaffarczyk and published by John Wiley & Sons. This book was released on 2014-04-10 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wind energy technology has progressed enormously over the last decade. In coming years it will continue to develop in terms of power ratings, performance and installed capacity of large wind turbines worldwide, with exciting developments in offshore installations. Designed to meet the training needs of wind engineers, this introductory text puts wind energy in context, from the natural resource to the assessment of cost effectiveness and bridges the gap between theory and practice. The thorough coverage spans the scientific basics, practical implementations and the modern state of technology used in onshore and offshore wind farms for electricity generation. Key features: provides in-depth treatment of all systems associated with wind energy, including the aerodynamic and structural aspects of blade design, the flow of energy and loads through the wind turbine, the electrical components and power electronics including control systems explains the importance of wind resource assessment techniques, site evaluation and ecology with a focus of project planning and operation describes the integration of wind farms into the electric grid and includes a whole chapter dedicated to offshore wind farms includes questions in each chapter for readers to test their knowledge Written by experts with deep experience in research, teaching and industry, this text conveys the importance of wind energy in the international energy-policy debate, and offers clear insight into the subject for postgraduates and final year undergraduate students studying all aspects of wind engineering. Understanding Wind Power Systems is also an authoritative resource for engineers designing and developing wind energy systems, energy policy makers, environmentalists, and economists in the renewable energy sector.
Download or read book Hybridantriebe f r mobile Arbeitsmaschinen 4 Fachtagung des VDMA und des Karlsruher Instituts f r Technologie 20 Februar 2013 Karlsruhe written by Geimer, Marcus and published by KIT Scientific Publishing. This book was released on 2014-05-13 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Der Tagungsband "Hybridantriebe für mobile Arbeitsmaschinen" enthält die gesammelten Beiträge zu den Vorträgen der 4. Fachtagung am 20. Februar 2013. In 13 Artikeln wird über den Stand der Forschung und neue Entwicklungen auf dem Gebiet der Hybridantriebe für mobile Arbeitsmaschinen berichtet. Die Themenschwerpunkte liegen auf Systemauslegung und Betriebsstrategien, der Potenzialabschätzung, der Simulation und Modellbildung, den elektrischen Antriebslösungen sowie Praxiserfahrungen.
Download or read book GWF Das Gas und Wasserfach written by and published by . This book was released on 1928 with total page 772 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1957 with total page 1160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Control of Electrical Drives written by Werner Leonhard and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electrical drives play an important part as electromechanical energy converters in transportation, materials handling and most production processes. This book presents a unified treatment of complete electrical drive systems, including the mechanical parts, electrical machines, and power converters and control. Since it was first published in 1985 the book has found its way onto many desks in industry and universities all over the world. For the second edition the text has been thoroughly revised and updated, with the aim of offering the reader a general view of the field of controlled electrial drives, which are maintaining and extending their importance as the most flexible source of controlled mechanical energy.
Download or read book Applied Modelling and Simulation of Technological Systems written by Pierre Borne and published by North Holland. This book was released on 1987 with total page 748 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Variable Ventilsteuerung written by Stefan Pischinger and published by expert verlag. This book was released on 2002 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Model Predictive Control mit MATLAB und Simulink written by Rainer Dittmar and published by BoD – Books on Demand. This book was released on 2019-12-04 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modellbasierte prädiktive Regelungen dienen der Lösung anspruchsvoller Aufgaben der Mehrgrößenregelung mit Beschränkungen der Stell- und Regelgrößen. Sie werden in der Industrie in vielen Bereichen erfolgreich eingesetzt. Mit der MPC ToolboxTM des Programmsystems MATLAB®/Simulink® steht ein Werkzeug zur Verfügung, das sowohl in der industriellen Praxis als auch an Universitäten und Hochschulen verwendet wird. Das vorliegende Buch gibt eine Übersicht über die Grundideen und Anwendungsvorteile des MPC-Konzepts. Es zeigt, wie mit Hilfe der Toolbox MPC-Regelungen entworfen, eingestellt und simuliert werden können. Ausgewählte Beispiele aus dem Bereich der Verfahrenstechnik demonstrieren mögliche Vorgehensweisen und vertiefen das Verständnis. Das Buch richtet sich an in der Industrie tätige Ingenieure, die MPC-Regelungen planen, entwickeln und betreiben, aber auch an Studierende technischer Fachdisziplinen, die in das Arbeitsgebiet MPC einsteigen wollen. Model Predictive Control (MPC) is used to solve challenging multivariable-constrained control problems. MPC systems are successfully applied in many different branches of industry. The MPC ToolboxTM of MATLAB®/Simulink® provides powerful tools for industrial MPC application, but also for education and research at technical universities. This book gives an overview of the basic ideas and advantages of the MPC concept. It shows how MPC systems can be designed, tuned, and simulated using the MPC Toolbox. Selected process engineering benchmark examples are used to demonstrate typical design approaches and help deepen the understanding of MPC technologies. The book is aimed at engineers in industry interested in the development and application of MPC systems, as well as students of different technical disciplines seeking an introduction into this field.This book gives an overview of the basic ideas and advantages of the MPC concept. It shows how MPC systems can be designed, tuned, and simulated using the MPC Toolbox. Selected process engineering benchmark examples are used to demonstrate typical design approaches and help deepen the understanding of MPC technologies. The book is aimed at engineers in industry interested in the development and application of MPC systems, as well as students of different technical disciplines seeking an introduction into this field.
Download or read book Control in Power Electronics and Electrical Drives written by W. Leonhard and published by Elsevier. This book was released on 2014-05-18 with total page 1041 pages. Available in PDF, EPUB and Kindle. Book excerpt: Control in Power Electronics and Electrical Drives contains the proceedings of the Second International Federation of Automatic Control Symposium held in Düsseldorf, Germany, on October 3-5, 1977. The symposium provided a forum for discussing the effects of converter control on the design of electrical machines. Comprised of 102 chapters, this book begins by focusing on control systems employing electronic power converters, along with converter circuits and converter control procedures. The next section deals with the behavior of inverter-fed electrical machines and requirements imposed by converter operation. Topics covered include the status of power thyristors and rectifiers; the dynamic performance of converter-fed synchronous motors; and open loop control of a linear vernier reluctance motor in a stepping mode. Subsequent sections explore converter-fed alternating current and direct current drives; applications of controlled industrial drives; and solid-state energy conversion. A number of methods for analyzing power electronic circuits are discussed and illustrated. This monograph will be of interest to electronics and electrical engineers.
Download or read book Analysis and Mathematical Models of Canned Electrical Machine Drives written by Qiang Yu and published by Springer. This book was released on 2018-11-19 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the electromagnetic and thermal modeling and analysis of electrical machines, especially canned electrical machines for hydraulic pump applications. It addresses both the principles and engineering practice, with more weight placed on mathematical modeling and theoretical analysis. This is achieved by providing in-depth studies on a number of major topics such as: can shield effect analysis, machine geometry optimization, control analysis, thermal and electromagnetic network models, magneto motive force modeling, and spatial magnetic field modeling. For the can shield effect analysis, several cases are studied in detail, including classical canned induction machines, as well as state-of-the-art canned permanent magnet machines and switched reluctance machines. The comprehensive and systematic treatment of the can effect for canned electrical machines is one of the major features of this book, which is particularly suited for readers who are interested in learning about electrical machines, especially for hydraulic pumping, deep-sea exploration, mining and the nuclear power industry. The book offers a valuable resource for researchers, engineers, and graduate students in the fields of electrical machines, magnetic and thermal engineering, etc.
