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Book High Performance Current Regulation for Unity Power Factor Current Source Inverter fed Induction Motor Drives

Download or read book High Performance Current Regulation for Unity Power Factor Current Source Inverter fed Induction Motor Drives written by H. R. Tayebi and published by . This book was released on 1997 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this research work optimal control of a CSI induction machine drive for highperformance current regulation and unity power factor is studied. A model-basedoptimal predictive control scheme, generalized predictive control (GPC), is developedfor high performance DC link current regulation in a vector controlled CSI-fed inductionmachine drive. The algorithm models the drive circuits using a simple RL structure. Theparameters of the model are estimated on-line to track system variation using a RecursiveLeast Square estimator. This model is used to predict the DC link current output over acertain length of time ahead and the best voltage control signal is generated throughminimising a quadratic cost function. The controller is also adaptive to motor parametersvariation and speed command changes and load disturbances. The performance of thecontroller in improving the dynamic response of a phase controlled CSI drive, has beencompared with that of a PI controller and found to be superior.An experimental rig was developed for testing the control algorithm which comprises apower unit and a control unit. The power unit consists of a full-wave controlled rectifier,DC link filter, inverter and induction motor. The control unit consists of a 486DX4-100personal computer which was connected to the power unit through an interface board.Programming of the system was done with the C and assembly languages. It was verifiedexperimentally that GPC control gives faster and smoother performance to the system. Using GPC as the DC link current controller, an IGBT based rectifier was developed for a high performance CSI drive with unity power factor and sinusoidal supply current. Space vector modulation (SVM) technique is proposed as an efficient modulation strategy for pulse width modulation of the rectifier switches. Compared with the traditional triangulation technique, space vector PWM waveforms are shown to have a better performance with respect to the ease of generation and efficiency and are suitable for real-time applications. Furthermore the SVM control can ensure zero degree phase displacement between input voltage and current. This is obtained by using a three-phase input LC filter and adjusting the phase angle of the input reference voltage corresponding to the input current variations. The input filter also eliminates the high order harmonics due to high frequency switching of IGBTS.

Book High performance Current Regulation for Voltage source inverter fed Induction Motor Drives

Download or read book High performance Current Regulation for Voltage source inverter fed Induction Motor Drives written by Rosemary Anne Norman and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book High Performance Control of AC Drives with Matlab Simulink

Download or read book High Performance Control of AC Drives with Matlab Simulink written by Haitham Abu-Rub and published by John Wiley & Sons. This book was released on 2021-05-11 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt: High Performance Control of AC Drives with Matlab®/Simulink Explore this indispensable update to a popular graduate text on electric drive techniques and the latest converters used in industry The Second Edition of High Performance Control of AC Drives with Matlab®/Simulink delivers an updated and thorough overview of topics central to the understanding of AC motor drive systems. The book includes new material on medium voltage drives, covering state-of-the-art technologies and challenges in the industrial drive system, as well as their components, and control, current source inverter-based drives, PWM techniques for multilevel inverters, and low switching frequency modulation for voltage source inverters. This book covers three-phase and multiphase (more than three-phase) motor drives including their control and practical problems faced in the field (e.g., adding LC filters in the output of a feeding converter), are considered. The new edition contains links to Matlab®/Simulink models and PowerPoint slides ideal for teaching and understanding the material contained within the book. Readers will also benefit from the inclusion of: A thorough introduction to high performance drives, including the challenges and requirements for electric drives and medium voltage industrial applications An exploration of mathematical and simulation models of AC machines, including DC motors and squirrel cage induction motors A treatment of pulse width modulation of power electronic DC-AC converter, including the classification of PWM schemes for voltage source and current source inverters Examinations of harmonic injection PWM and field-oriented control of AC machines Voltage source and current source inverter-fed drives and their control Modelling and control of multiphase motor drive system Supported with a companion website hosting online resources. Perfect for senior undergraduate, MSc and PhD students in power electronics and electric drives, High Performance Control of AC Drives with Matlab®/Simulink will also earn a place in the libraries of researchers working in the field of AC motor drives and power electronics engineers in industry.

Book Power Electronics Handbook

Download or read book Power Electronics Handbook written by Muhammad H. Rashid and published by Elsevier. This book was released on 2023-09-27 with total page 1472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Power Electronics Handbook, Fifth Edition delivers an expert guide to power electronics and their applications. The book examines the foundations of power electronics, power semiconductor devices, and power converters, before reviewing a constellation of modern applications. Comprehensively updated throughout, this new edition features new sections addressing current practices for renewable energy storage, transmission, integration, and operation, as well as smart-grid security, intelligent energy, artificial intelligence, and machine learning applications applied to power electronics, and autonomous and electric vehicles. This handbook is aimed at practitioners and researchers undertaking projects requiring specialist design, analysis, installation, commissioning, and maintenance services. - Provides a fully comprehensive work addressing each aspect of power electronics in painstaking depth - Delivers a methodical technical presentation in over 1500 pages - Includes 50+ contributions prepared by leading experts - Offers practical support and guidance with detailed examples and applications for lab and field experimentation - Includes new technical sections on smart-grid security and intelligent energy, artificial intelligence, and machine learning applications applied to power electronics and autonomous and electric vehicles - Features new chapter level templates and a narrative progression to facilitate understanding

Book High Power Converters and AC Drives

Download or read book High Power Converters and AC Drives written by Bin Wu and published by John Wiley & Sons. This book was released on 2017-01-17 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive reference of the latest developments in MV drive technology in the area of power converter topologies This new edition reflects the recent technological advancements in the MV drive industry, such as advanced multilevel converters and drive configurations. It includes three new chapters, Control of Synchronous Motor Drives, Transformerless MV Drives, and Matrix Converter Fed Drives. In addition, there are extensively revised chapters on Multilevel Voltage Source Inverters and Voltage Source Inverter-Fed Drives. This book includes a systematic analysis on a variety of high-power multilevel converters, illustrates important concepts with simulations and experiments, introduces various megawatt drives produced by world leading drive manufacturers, and addresses practical problems and their mitigations methods. This new edition: Provides an in-depth discussion and analysis of various control schemes for the MV synchronous motor drives Examines new technologies developed to eliminate the isolation transformer in the MV drives Discusses the operating principle and modulation schemes of matrix converter (MC) topology and multi-module cascaded matrix converters (CMCs) for MV drives, and their application in commercial MV drives Bin Wu is a Professor and Senior NSERC/Rockwell Automation Industrial Research Chair in Power Electronics and Electric Drives at Ryerson University, Canada. He is a fellow of Institute of Electrical and Electronics Engineers (IEEE), Engineering Institute of Canada (EIC), and Canadian Academy of Engineering (CAE). Dr. Wu has published more than 400 papers and holds more than 30 granted/pending US/European patents. He co-authored several books including Power Conversion and Control of Wind Energy Systems and Model Predictive Control of Wind Energy Conversion Systems (both by Wiley-IEEE Press). Mehdi Narimani is a Postdoctoral Research Associate with the Department of Electrical and computer Engineering at Ryerson University, Canada, and Rockwell Automation Canada. He is a senior member of IEEE. Dr. Narimani is author/co-author of more than 50 technical papers and four US/European patents (issued/pending review). His current research interests include power conversion, high power converters, control of power electronics, and renewable energy systems.

Book Recent Developments on Power Inverters

Download or read book Recent Developments on Power Inverters written by Ali Saghafinia and published by BoD – Books on Demand. This book was released on 2017-06-21 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book develops some methods and structures to improve the power inverters for different applications in a single-phase or three-phase output in recent years. The reduction of the switching devices and multilevel inverters as changing structure for the power inverters and PDM and PWM methods as changing control methods for the power inverter are studied in this book. Moreover, power inverters are developed to supply open-ended loads. Furthermore, the basic and advanced aspects of the electric drives that are control based are taught for induction motor (IM) based on power inverters suitable for both undergraduate and postgraduate levels. The main objective of this book is to provide the necessary background to improve and implement the high-performance inverters. Once the material in this book has been mastered, the reader will be able to apply these improvements in the power inverters to his or her problems for high-performance power inverters.

Book Computational Intelligence Paradigms for Optimization Problems Using MATLAB SIMULINK

Download or read book Computational Intelligence Paradigms for Optimization Problems Using MATLAB SIMULINK written by S. Sumathi and published by CRC Press. This book was released on 2018-09-03 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt: Considered one of the most innovative research directions, computational intelligence (CI) embraces techniques that use global search optimization, machine learning, approximate reasoning, and connectionist systems to develop efficient, robust, and easy-to-use solutions amidst multiple decision variables, complex constraints, and tumultuous environments. CI techniques involve a combination of learning, adaptation, and evolution used for intelligent applications. Computational Intelligence Paradigms for Optimization Problems Using MATLAB®/ Simulink® explores the performance of CI in terms of knowledge representation, adaptability, optimality, and processing speed for different real-world optimization problems. Focusing on the practical implementation of CI techniques, this book: Discusses the role of CI paradigms in engineering applications such as unit commitment and economic load dispatch, harmonic reduction, load frequency control and automatic voltage regulation, job shop scheduling, multidepot vehicle routing, and digital image watermarking Explains the impact of CI on power systems, control systems, industrial automation, and image processing through the above-mentioned applications Shows how to apply CI algorithms to constraint-based optimization problems using MATLAB® m-files and Simulink® models Includes experimental analyses and results of test systems Computational Intelligence Paradigms for Optimization Problems Using MATLAB®/ Simulink® provides a valuable reference for industry professionals and advanced undergraduate, postgraduate, and research students.

Book Investigation of Voltage boosting Current Source Inverters for Integrated Motor Drives

Download or read book Investigation of Voltage boosting Current Source Inverters for Integrated Motor Drives written by Feida Chen (Ph.D.) and published by . This book was released on 2024 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this research is to investigate a high-efficiency CSI-based integrated motor drive (IMD) by using voltage boost function and soft-switching technique. First, the commutation processes of the voltage-source inverter (VSI) and current-source inverter (CSI) are analyzed and compared. The impact of the parasitic components in the CSI current commutation loop between the two-phase legs and output capacitors on high-frequency SiC devices' performance is analyzed. Two CSI benchtop prototype units, one with SiC discrete devices and the other with power modules, have been designed and tested, and the performances of the two CSIs are compared. Second, the design of a power-dense CSI-based IMD system using WBG switches for EV traction applications including the IMD structure, power electronics, and cooling system is presented. Attention is devoted to the design of each of the major IMD sub-systems including the dc/dc converter, CSI, passive components, controller, sensors, and the combined liquid/air thermal management system. Both analytical and measured performance results are provided for the prototype IMD system. In addition, an "apples-to-apples" comparison of VSI- and CSI-based motor drive systems with the same performance capabilities is presented. More specifically, sine filters are added to the VSI output terminals to match the CSI performance, and a front-end boost converter is added to the VSI to match the CSI's voltage-boost capability. Third, the voltage and current trajectories of SiC MOSFETs in the switching transition of a CSI-based motor drive system are analyzed in detail and compared with VSI. A high-accuracy loss model of SiC MOSFETs in the CSI is proposed considering the current commutation and parasitic parameters in the current commutation loop. A CSI-based double pulse test is developed to verify the proposed switching transient characteristics and switching loss model. The 3-phase CSI experimental results verified that the proposed power loss model has higher accuracy than the conventional loss model. Fourth, the voltage boosting feature of the CSI is investigated to improve the overall efficiency of the CSI-based motor drive system. The effects of the boost function on the total system losses are described based on the proposed CSI loss model and double pulse test results. In addition, the impacts of the current angle and voltage boost ratio on the CSI efficiency and power factor are investigated, considering the effect of the filter capacitors at the CSI output terminals. A genetic algorithm has been used to optimize the CSI's switching frequency and modulation index to maximize the drive system efficiency under any desired operating condition. The investigation of voltage-boost features is extended to the emerging seven-switch current-source inverter (H7-CSI) to enhance the efficiency of CSI-based motor drive systems. Finally, a novel soft-switching method for CSI is investigated to increase the CSI efficiency and reduce the overshoot issues of the WBG devices. The system configuration, working principle, circuit design, and control schemes are described in detail. The performance of the proposed soft-switching CSI is verified by simulation and experiment. It is shown that the proposed soft-switching circuit can significantly decrease the switching loss and improve efficiency.

Book A Comparative study of steady state performance of voltage and current source inverter fed closed loop induction motor drives

Download or read book A Comparative study of steady state performance of voltage and current source inverter fed closed loop induction motor drives written by Abraham Nieves Acevedo and published by . This book was released on 1986 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Index to Theses with Abstracts Accepted for Higher Degrees by the Universities of Great Britain and Ireland and the Council for National Academic Awards

Download or read book Index to Theses with Abstracts Accepted for Higher Degrees by the Universities of Great Britain and Ireland and the Council for National Academic Awards written by and published by . This book was released on 2001 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Theses on any subject submitted by the academic libraries in the UK and Ireland.

Book Automatic Control of Converter Fed Drives

Download or read book Automatic Control of Converter Fed Drives written by M.P. Kazmierkowski and published by . This book was released on 1994 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces the reader in a systematical way to the design philosophy behind vector control systems. The mathematical motor models based on complex-space vector descriptions as well as the control structures for DC motors provide a perfect basis for explaining the principles of AC motor vector control. An in-depth review of electromagnetic transients in induction motors under various methods of frequency control is given. This is explained with the help of appropriate block schemes and new equivalent circuits. Properties of AC motors under non-sinusoidal supply are reviewed. The basic power converter topologies applied in motor control technology as well as symmetry and loss reduction problems are discussed. Some examples of controller design methods are presented step by step. An important feature of the book is that it contains many examples of systems applied in practical engineering as well as simulation and experimental results. The volume will be of interest to all those familiar with the basics of electrical machines and control systems theory. Therefore, it is recommended to students of electrical, electronics and mechanics departments. The book can also be used by those working in industry, who are interested in modern power electronics, drives and motion control, robotics as well as automation of industrial processes.

Book Electrical Electronics Abstracts

Download or read book Electrical Electronics Abstracts written by and published by . This book was released on 1997 with total page 1904 pages. Available in PDF, EPUB and Kindle. Book excerpt: