Download or read book Electrical Machines written by Dieter Gerling and published by Springer Science & Business Media. This book was released on 2014-09-17 with total page 479 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electrical Machines and Drives play a vital role in industry with an ever increasing importance. This fact necessitates the understanding of machine and drive principles by engineers of many different disciplines. Therefore, this book is intended to give a comprehensive deduction of these principles. Special attention is given to the precise mathematical deduction of the necessary formulae to calculate machines and drives, and to the discussion of simplifications (if applied) with the associated limits. So the book shows how the different machine topologies can be deduced from general fundamentals, and how they are linked. This book addresses graduate students, researchers and developers of Electrical Machines and Drives, who are interested in getting knowledge about the principles of machine and drive operation and in detecting the mathematical and engineering specialties of the different machine and drive topologies together with their mutual links. The detailed, but compact mathematical deduction, together with a distinct emphasis onto assumptions, simplifications and the associated limits, leads to a clear understanding of Electrical Machine and Drive topologies and characteristics.

Download or read book PID and Predictive Control of Electrical Drives and Power Converters using MATLAB Simulink written by Liuping Wang and published by John Wiley & Sons. This book was released on 2015-03-02 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Advanced Control of Electrical Drives and Power Electronic Converters written by Jacek Kabziński and published by Springer. This book was released on 2016-09-30 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: This contributed volume is written by key specialists working in multidisciplinary fields in electrical engineering, linking control theory, power electronics, artificial neural networks, embedded controllers and signal processing. The authors of each chapter report the state of the art of the various topics addressed and present results of their own research, laboratory experiments and successful applications. The presented solutions concentrate on three main areas of interest: · motion control in complex electromechanical systems, including sensorless control; · fault diagnosis and fault tolerant control of electric drives; · new control algorithms for power electronics converters. The chapters and the complete book possess strong monograph attributes. Important practical and theoretical problems are deeply and accurately presented on the background of an exhaustive state-of the art review. Many results are completely new and were never published before. Well-known control methods like field oriented control (FOC) or direct torque control (DTC) are referred as a starting point for modifications or are used for comparison. Among numerous control theories used to solve particular problems are: nonlinear control, robust control, adaptive control, Lyapunov techniques, observer design, model predictive control, neural control, sliding mode control, signal filtration and processing, fault diagnosis, and fault tolerant control.

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 Electric Machines for Smart Grids Applications written by Adel El-Shahat and published by BoD – Books on Demand. This book was released on 2018-12-12 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, highly qualified scientists present their recent research motivated by the importance of electric machines. It addresses advanced studies for high-speed electrical machine design, mechanical design of rotors with surface-mounted permanent magnets, design of motor drive for brushless DC motor, single-phase motors for household applications, battery electric propulsion systems for competition racing applications, robust diagnosis by observer using the bond graph approach, a DC motor simulator based on virtual instrumentation, start-up of a PID fuzzy logic embedded control system for the speed of a DC motor using LabVIEW, advanced control of the permanent magnet synchronous motor and optimization of fuzzy logic controllers by particle swarm optimization to increase the lifetime in power electronic stages.

Download or read book Linear Electric Machines Drives and MAGLEVs Handbook written by Ion Boldea and published by CRC Press. This book was released on 2017-12-19 with total page 663 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on author Ion Boldea’s 40 years of experience and the latest research, Linear Electric Machines, Drives, and Maglevs Handbook provides a practical and comprehensive resource on the steady improvement in this field. The book presents in-depth reviews of basic concepts and detailed explorations of complex subjects, including classifications and practical topologies, with sample results based on an up-to-date survey of the field. Packed with case studies, this state-of-the-art handbook covers topics such as modeling, steady state, and transients as well as control, design, and testing of linear machines and drives. It includes discussion of types and applications—from small compressors for refrigerators to MAGLEV transportation—of linear electric machines. Additional topics include low and high speed linear induction or synchronous motors, with and without PMs, with progressive or oscillatory linear motion, from topologies through modeling, design, dynamics, and control. With a breadth and depth of coverage not found in currently available references, this book includes formulas and methods that make it an authoritative and comprehensive resource for use in R&D and testing of innovative solutions to new industrial challenges in linear electric motion/energy automatic control.

Download or read book Evolutionary Multi Criterion Optimization written by Kalyanmoy Deb and published by Springer. This book was released on 2019-02-28 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 10th International Conference on Evolutionary Multi-Criterion Optimization, EMO 2019 held in East Lansing, MI, USA, in March 2019. The 59 revised full papers were carefully reviewed and selected from 76 submissions. The papers are divided into 8 categories, each representing a key area of current interest in the EMO field today. They include theoretical developments, algorithmic developments, issues in many-objective optimization, performance metrics, knowledge extraction and surrogate-based EMO, multi-objective combinatorial problem solving, MCDM and interactive EMO methods, and applications.

Download or read book Development of Brushless Self excited and Self regulated Synchronous Generating System for Wind and Hydro Generators written by Izzat, Likaa Fahmi Ahmed and published by kassel university press GmbH. This book was released on 2013-01-01 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this work, a developed model of brushless synchronous generator of wound rotor type is designed, analyzed by FEM, practically applied and investigated. A comparison of results with conventional machines is also performed. The presented machine can be applied for multi-pole wind/ hydro generators or double-poles diesel-engine generators. It is self-excited by residual magnetism and a connected capacitor. It is also self-regulated by making use of fluctuations at load or limited speed changes. The generated voltage may last at extended speed range by arranging a generating system with variable capacitance. By eliminating the permanent magnets or advanced manufacturing technology of rotor poles; and without using extra rotating/ external DC exciters, an efficient excitation field and an output of flat self-compensated compound characteristic are obtained. More, the feature of damper windings is determined. Concerning the fact of environmental diminishing of elements in materials of permanent magnets and D.C. Battery, the presented novel machine is hence a good alternative and more economic from generators, exist in the market. Beside, it is safer and highly recommended for power stability when connected to the grid.

Download or read book AC Electric Motors Control written by Fouad Giri and published by John Wiley & Sons. This book was released on 2013-03-25 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt: The complexity of AC motor control lies in the multivariable and nonlinear nature of AC machine dynamics. Recent advancements in control theory now make it possible to deal with long-standing problems in AC motors control. This text expertly draws on these developments to apply a wide range of model-based control designmethods to a variety of AC motors. Contributions from over thirty top researchers explain how modern control design methods can be used to achieve tight speed regulation, optimal energetic efficiency, and operation reliability and safety, by considering online state variable estimation in the absence of mechanical sensors, power factor correction, machine flux optimization, fault detection and isolation, and fault tolerant control. Describing the complete control approach, both controller and observer designs are demonstrated using advanced nonlinear methods, stability and performance are analysed using powerful techniques, including implementation considerations using digital computing means. Other key features: • Covers the main types of AC motors including triphase, multiphase, and doubly fed induction motors, wound rotor, permanent magnet, and interior PM synchronous motors • Illustrates the usefulness of the advanced control methods via industrial applications including electric vehicles, high speed trains, steel mills, and more • Includes special focus on sensorless nonlinear observers, adaptive and robust nonlinear controllers, output-feedback controllers, fault detection and isolation algorithms, and fault tolerant controllers This comprehensive volume provides researchers and designers and R&D engineers with a single-source reference on AC motor system drives in the automotive and transportation industry. It will also appeal to advanced students in automatic control, electrical, power systems, mechanical engineering and robotics, as well as mechatronic, process, and applied control system engineers.

Download or read book Induction Motors written by Raúl Gregor and published by BoD – Books on Demand. This book was released on 2015-11-18 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: AC motors play a major role in modern industrial applications. Squirrel-cage induction motors (SCIMs) are probably the most frequently used when compared to other AC motors because of their low cost, ruggedness, and low maintenance. The material presented in this book is organized into four sections, covering the applications and structural properties of induction motors (IMs), fault detection and diagnostics, control strategies, and the more recently developed topology based on the multiphase (more than three phases) induction motors. This material should be of specific interest to engineers and researchers who are engaged in the modeling, design, and implementation of control algorithms applied to induction motors and, more generally, to readers broadly interested in nonlinear control, health condition monitoring, and fault diagnosis.

Download or read book Climate Change and Energy Dynamics in the Middle East written by Hassan Qudrat-Ullah and published by Springer. This book was released on 2019-03-28 with total page 375 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited volume presents chapters on the dynamics of global climate change and global warming in the Middle East. In this region, it should be noted that even slightly warmer weather can result in an increased demand of energy along with its lower supply, as well as lower labor productivity. This text focuses on modeling, simulation, system dynamics, and agent-based modeling in dealing with these issues. The latest decision making tools, techniques, and innovative solutions used to overcome these challenges are presented. Many distinguished researchers contribute their work herein. The audience for this volume includes policy makers, researchers, and students unified by the common goal of making better decisions in the sustainable production and consumption of energy. The practical orientation of the chapters within each part is intended to suit the practitioners: managers and decision makers in the energy sector of the Middle East region.

Download or read book Advances in Electromechanical Technologies written by V. C. Pandey and published by Springer Nature. This book was released on 2020-09-24 with total page 1008 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprises select peer-reviewed papers from the International Conference on Emerging Trends in Electromechanical Technologies & Management (TEMT) 2019. The focus is on current research in interdisciplinary areas of mechanical, electrical, electronics and information technologies, and their management from design to market. The book covers a wide range of topics such as computer integrated manufacturing, additive manufacturing, materials science and engineering, simulation and modelling, finite element analysis, operations and supply chain management, decision sciences, business analytics, project management, and sustainable freight transportation. The book will be of interest to researchers and practitioners of various disciplines, in particular mechanical and industrial engineering.

Download or read book Advances in Smart Grid Automation and Industry 4 0 written by M. Jaya Bharata Reddy and published by Springer Nature. This book was released on 2021-04-21 with total page 793 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprises select proceedings of the International Conference on Emerging Trends for Smart Grid Automation and Industry 4.0 (ICETSGAI4.0 2019). The contents discuss the recent trends in smart grid technology and related applications. The topics covered include data analytics for smart grid operation and control, integrated power generation technologies, green technologies as well as advances in microgrid operation and planning. The book highlights the enhancement in technology in the field of smart grids, and how IoT, big data, robotics and automation, artificial intelligence, and wide area measurement have become prerequisites for the fourth industrial revolution, also known as Industry 4.0. The book can be a valuable reference for researchers and professionals interested in smart grid automation incorporating features of Industry 4.0.

Download or read book Mathematical Models for the Design of Electrical Machines written by Frédéric Dubas and published by MDPI. This book was released on 2021-03-15 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a comprehensive set of articles reflecting the latest advances and developments in mathematical modeling and the design of electrical machines for different applications. The main models discussed are based on the: i) Maxwell–Fourier method (i.e., the formal resolution of Maxwell’s equations by using the separation of variables method and the Fourier’s series in 2-D or 3-D with a quasi-Cartesian or polar coordinate system); ii) electrical, thermal and magnetic equivalent circuit; iii) hybrid model. In these different papers, the numerical method and the experimental tests have been used as comparisons or validations.

Download or read book Design and Control of Grid Connected Photovoltaic System written by Ahteshamul Haque and published by CRC Press. This book was released on 2023-04-28 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: The current model for electricity generation and distribution is dominated by centralized power plants which are typically associated with combustion (coal, oil, and natural gas) or nuclear generation units. These power models require distribution from the center to outlying consumers and have many disadvantages concerning the electric utilities, transmission and distribution, and greenhouse gas emissions. This resulted in the modelling and development of cleaner renewable power generation with alternative sources such as photovoltaic (PV), wind, and other sources. Further, due to matured PV technology, constant drop-in installation cost, greenhouse emissions reductions, energy efficiency, reduced transmission and distribution investments, minimization of electric losses, and network support, the development of PV systems is proliferating. In view of this development, this book provides an idea for setting up the PV plant from initial study of the site to plan sizing. Once the first planning is covered, the book focuses on the modeling aspects of power electronics converter and control elements associated with it keeping the operating standards specified for the development of distributed generation systems in check. This book will be useful for industrial professionals and researchers who are working toward modeling of PV plants, and their control in grid connected operation. All the necessary information related to these fields is available in the book.

Download or read book Power Electronic Converter Configuration and Control for DC Microgrid Systems written by Jens Bo Holm-Nielsen and published by MDPI. This book was released on 2020-11-13 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: The DC/AC microgrid system is a crucial empowering technology for the integration of various types of renewable energy sources (RES) accompanied by a smart control approach to enhance the system reliability and efficiency. This book presents cutting-edge technology developments and recent investigations performed with the help of power electronics. Large-scale renewable energy integration presents challenges and issues for power grids. In particular, these issues include microgrid adaption to RES, AC machines, the new configuration of AC/DC converters, and electrification of domestic needs with optimal cost expenses from domestic standalone microgrids. Furthermore, this book elaborates cutting-edge developments in electric vehicle fast charging configuration, battery management, and control schemes with renewable energies through hardware-in-loop testing and validation for performance durability in real-time application. Overall, the book covers the diverse field of microgrids, allowing readers to adopt new technologies and prepare for future power demands with sustainable green engineering.

Download or read book Offshore Wind Energy Generation written by Olimpo Anaya-Lara and published by John Wiley & Sons. This book was released on 2014-03-26 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: The offshore wind sector’s trend towards larger turbines, bigger wind farm projects and greater distance to shore has a critical impact on grid connection requirements for offshore wind power plants. This important reference sets out the fundamentals and latest innovations in electrical systems and control strategies deployed in offshore electricity grids for wind power integration. Includes: All current and emerging technologies for offshore wind integration and trends in energy storage systems, fault limiters, superconducting cables and gas-insulated transformers Protection of offshore wind farms illustrating numerous system integration and protection challenges through case studies Modelling of doubly-fed induction generators (DFIG) and full-converter wind turbines structures together with an explanation of the smart grid concept in the context of wind farms Comprehensive material on power electronic equipment employed in wind turbines with emphasis on enabling technologies (HVDC, STATCOM) to facilitate the connection and compensation of large-scale onshore and offshore wind farms Worked examples and case studies to help understand the dynamic interaction between HVDC links and offshore wind generation Concise description of the voltage source converter topologies, control and operation for offshore wind farm applications Companion website containing simulation models of the cases discussed throughout Equipping electrical engineers for the engineering challenges in utility-scale offshore wind farms, this is an essential resource for power system and connection code designers and pratitioners dealing with integation of wind generation and the modelling and control of wind turbines. It will also provide high-level support to academic researchers and advanced students in power and renewable energy as well as technical and research staff in transmission and distribution system operators and in wind turbine and electrical equipment manufacturers.