Download or read book Merged Multi stage Power Conversion written by and published by . This book was released on 2015 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: Emerging applications of power electronics introduce challenging design requirements. Increasing the system complexity in appropriate ways can bring many advantages, yielding reduced system volume and/or improved system performance. This thesis explores new circuit design techniques that can leverage the advantages of merged multi-stage power conversion through a hybrid switched-capacitor/magnetics approach. Multiple circuits and system aspects of this approach are investigated in this thesis. A 70 W grid-interfaced solar micro-inverter with a multilevel energy buffer and voltage modulator (MEB) is developed to demonstrate the advantages of a merged multi-stage system in dc-ac applications. By synthesizing a multilevel voltage in pace with the ac grid voltage using the energy buffer, the wide operation range of the inverter stage is compressed, leading to a significantly improved overall system performance. A high-power-density wide-input-voltage-range isolated dc-dc converter with a Multi- Track power conversion architecture is also investigated. The MultiTrack architecture delivers power in multiple voltage domains and current tracks. It incorporates multiple distributed circuit cells, and benefits from the way they are merged together. By changing the use of multiple cells according to the system operating condition, the overall device utilization of the system is enhanced, leading to significantly improved power density as compared to conventional designs while maintaining high efficiency. The prototype 18 V-80 V input, 5 V output, 75 W isolated dc-dc converter achieves 453.7 W/inch3 power density, which is 3x higher than the best commercial product presently available. It maintains high efficiency across a wide (>4:1) input voltage range, and has a peak efficiency of 91.3%. Advanced magnetics structures are an enabling technique on the path to improved power conversion. This thesis developed a systematic approach to modeling impedances and current distribution in planar magnetics. It captures electromagnetic coupling relationships using an analytical lumped circuit model, and enables rapid evaluation of planar magnetics designs. The effectiveness of the model is verified by numerical methods and experimental measurements. A software package - M2Spice - that can rapidly convert design information into SPICE netlists has been developed and is being utilized in many real designs.
Download or read book A Merged Two stage Power Conversion Architecture with Switched Capacitor Circuit for an LED Driver Module written by Seungbum Lim and published by . This book was released on 2012 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a power converter specified to convert from wide-range and high-level DC voltage or AC line voltage to low-level DC voltage, satisfying high efficiency, high power density, and high power factor is challenging because of the higher device stress and difficulty of maintaining ZVS/ZCS conditions. Our purpose of the proposed two-stage power conversion architecture is to manage this high peak voltage stress and widely-varying operating conditions and to reduce dissipation by placing a switched capacitor pre-regulator stage in front of a very high frequency DC-DC converter stage. Our proposed two-stage architecture has been designed, built, and tested.
Download or read book Pulsewidth Modulated DC to DC Power Conversion written by Byungcho Choi and published by John Wiley & Sons. This book was released on 2021-10-04 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt: ORGANIC REACTIONS CYCLIZATION REACTIONS OF NITROGEN-CENTERED RADICALS Stuart W. McCombie, Béatrice Quiclet-Sire, and Samir Z. Zard TRANSITION-METAL-CATALYZED AMINOOXYGENATION OF ALKENES Sherry R. Chemler, Dake Chen, Shuklendu D. Karyakarte, Jonathan M. Shikora, and Tomasz Wdowik
Download or read book Advanced Multilevel Converters and Applications in Grid Integration written by Ali Iftekhar Maswood and published by John Wiley & Sons. This book was released on 2019-01-04 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive survey of advanced multilevel converter design, control, operation and grid-connected applications Advanced Multilevel Converters and Applications in Grid Integration presents a comprehensive review of the core principles of advanced multilevel converters, which require fewer components and provide higher power conversion efficiency and output power quality. The authors – noted experts in the field – explain in detail the operation principles and control strategies and present the mathematical expressions and design procedures of their components. The text examines the advantages and disadvantages compared to the classical multilevel and two level power converters. The authors also include examples of the industrial applications of the advanced multilevel converters and offer thoughtful explanations on their control strategies. Advanced Multilevel Converters and Applications in Grid Integration provides a clear understanding of the gap difference between research conducted and the current industrial needs. This important guide: Puts the focus on the new challenges and topics in related areas such as modulation methods, harmonic analysis, voltage balancing and balanced current injection Makes a strong link between the fundamental concepts of power converters and advances multilevel converter topologies and examines their control strategies, together with practical engineering considerations Provides a valid reference for further developments in the multilevel converters design issue Contains simulations files for further study Written for university students in electrical engineering, researchers in areas of multilevel converters, high-power converters and engineers and operators in power industry, Advanced Multilevel Converters and Applications in Grid Integration offers a comprehensive review of the core principles of advanced multilevel converters, with contributions from noted experts in the field.
Download or read book Origin of Power Converters written by Tsai-Fu Wu and published by John Wiley & Sons. This book was released on 2020-04-14 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive guide to approaches to decoding, synthesizing and modeling pulse width modulation (PWM) converters Origin of Power Converters explores the original converter and provides a systematic examination of the development and modeling of power converters based on decoding and synthesizing approaches. The authors—noted experts on the topic—present an introduction to the origins of the converter and detail the fundamentals related to power the converter’s evolution. They cover a range of converter synthesis approaches, synthesis of multi-stage/multi-level converters, extension of hard-switching converters to soft-switching ones, and determination of switch-voltage stresses in the converters. In later chapters, this comprehensive resource reviews conventional two-port network theory and the state-space averaged (SSA) modeling approach, from which systematic modeling approaches are based on the graft switch technique. In addition, the book reviews the converter layer scheme and some fundamental circuit theories. This important book: • Contains a review of several typical transfer codes, such as step-down, step-up, step-up&-down, and ± step-up&-down • Describes the syntheses of pulse width modulation (PWM) converters such as voltage-fed z-source, current-fed z-source, quasi z-source, switched capacitor, and switched inductor converters • Presents two application examples based on previously proposed modeling approaches Written for academic researchers, graduate students, and seniors in power electronics, Origin of Power Converters provides a comprehensive understanding of the evolution of the converter and its applications.
Download or read book Combined Heating Cooling Power Handbook written by Neil Petchers and published by The Fairmont Press, Inc.. This book was released on 2003 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many of the economic road blocks which have previously served to discourage the implementation of alternative power generation technologies can now be readily overcome through effective energy resource optimization. It is now a fact that solid financial returns can be achieved from combined heating, cooling and power generation projects by integrating energy and cost efficiency goals, and seeking a match between power production and heating/cooling requirements. This book is intended to serve as a road map to those seeking to realize optimum economic returns on such projects. The first section provides an introduction to basic heat and power thermodynamics, with an overview of heat and power generation technologies and equipment. The second section explores the infrastructure in which the project must be implemented, including environmental considerations, as well as utility rate structures. The third section provides detailed coverage of a broad range of technology types, and discusses how opportunities for their application can be identified and successfully exploited. The final section takes you through each step of project development, implementation and operation. Numerous examples are provided of actual field applications, with supporting documentation of system layouts and performance. The text is supplemented with more than one thousand graphics, including photos, cutaway drawings, layout schematics, performance curves, and data tables.
Download or read book Power Systems On Chip written by Bruno Allard and published by John Wiley & Sons. This book was released on 2016-11-23 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book gathers the major issues involved in the practical design of Power Management solutions in wireless products as Internet-of-things. Presentation is not about state-of-the-art but about appropriation of validated recent technologies by practicing engineers. The book delivers insights on major trade-offs and a presentation of examples as a cookbook. The content is segmented in chapters to make access easier for the lay-person.
Download or read book Emerging Power Converters for Renewable Energy and Electric Vehicles written by Md Rabiul Islam and published by CRC Press. This book was released on 2021-04-22 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers advancements of power electronic converters and their control techniques for grid integration of large-scale renewable energy sources and electrical vehicles. Major emphasis are on transformer-less direct grid integration, bidirectional power transfer, compensation of grid power quality issues, DC system protection and grounding, interaction in mixed AC/DC system, AC and DC system stability, magnetic design for high-frequency high power density systems with advanced soft magnetic materials, modelling and simulation of mixed AC/DC system, switching strategies for enhanced efficiency, and protection and reliability for sustainable grid integration. This book is an invaluable resource for professionals active in the field of renewable energy and power conversion.
Download or read book Modular Multilevel Converters written by Sixing Du and published by John Wiley & Sons. This book was released on 2018-01-11 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: An invaluable academic reference for the area of high-power converters, covering all the latest developments in the field High-power multilevel converters are well known in industry and academia as one of the preferred choices for efficient power conversion. Over the past decade, several power converters have been developed and commercialized in the form of standard and customized products that power a wide range of industrial applications. Currently, the modular multilevel converter is a fast-growing technology and has received wide acceptance from both industry and academia. Providing adequate technical background for graduate- and undergraduate-level teaching, this book includes a comprehensive analysis of the conventional and advanced modular multilevel converters employed in motor drives, HVDC systems, and power quality improvement. Modular Multilevel Converters: Analysis, Control, and Applications provides an overview of high-power converters, reference frame theory, classical control methods, pulse width modulation schemes, advanced model predictive control methods, modeling of ac drives, advanced drive control schemes, modeling and control of HVDC systems, active and reactive power control, power quality problems, reactive power, harmonics and unbalance compensation, modeling and control of static synchronous compensators (STATCOM) and unified power quality compensators. Furthermore, this book: Explores technical challenges, modeling, and control of various modular multilevel converters in a wide range of applications such as transformer and transformerless motor drives, high voltage direct current transmission systems, and power quality improvement Reflects the latest developments in high-power converters in medium-voltage motor drive systems Offers design guidance with tables, charts graphs, and MATLAB simulations Modular Multilevel Converters: Analysis, Control, and Applications is a valuable reference book for academic researchers, practicing engineers, and other professionals in the field of high power converters. It also serves well as a textbook for graduate-level students.
Download or read book Multi terminal High voltage Converter written by Bo Zhang and published by John Wiley & Sons. This book was released on 2018-11-29 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: An all-in-one guide to high-voltage, multi-terminal converters, this book brings together the state of the art and cutting-edge techniques in the various stages of designing and constructing a high-voltage converter. The book includes 9 chapters, and can be classified into three aspects. First, all existing high-voltage converters are introduced, including the conventional two-level converter, and the multi-level converters, such as the modular multi-level converter (MMC). Second, different kinds of multi-terminal high-voltage converters are presented in detail, including the topology, operation principle, control scheme and simulation verification. Third, some common issues of the proposed multi-terminal high-voltage converters are discussed, and different industrial applications of the proposed multi-terminal high-voltage converters are provided. Systematically proposes, for the first time, the design methodology for high-voltage converters in use of MTDC grids; also applicable to constructing novel power electronics converters, and driving the development of HVDC, which is one of the most important technology areas Presents the latest research on multi-terminal high-voltage converters and its application in MTDC transmission systems and other industrially important applications Offers an overview of existing technology and future trends of the high-voltage converter, with extensive discussion and analysis of different types of high-voltage converters and relevant control techniques (including DC-AC, AC-DC, DC-DC, and AC-AC converters) Provides readers with sufficient context to delve into the more specialized topics covered in the book Featuring a series of novel multi-terminal high-voltage converters proposed and patented by the authors, Multi-terminal High Voltage Converters is written for researchers, engineers, and advanced students specializing in power electronics, power system engineering and electrical engineering.
Download or read book Advanced cooperative control and optimization strategies for integrated energy systems written by Rui Wang and published by Frontiers Media SA. This book was released on 2023-02-24 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coal Power Combustion written by United States. Division of Coal Conversion and published by . This book was released on 1977 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research and Development Progress Report written by United States. Office of Saline Water and published by . This book was released on 1970 with total page 874 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Renewable Energy Systems in Smart Grid written by Mohan Lal Kolhe and published by Springer Nature. This book was released on 2022-08-30 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains peer-reviewed papers from International Conference on Renewable and Clean Energy 2022 (contributions from various authors from all sectors of academia and industries), exploring cutting-edge solutions and best practices for renewable and clean energy technologies for achieving the UN's SDG7 to "ensure access to affordable, reliable, sustainable and modern energy for all." This book presents innovative grid integration technologies for techno-economic operation of renewable and clean energy technologies (e.g., solar photovoltaic, wind energy, hydrogen technologies including electrolyzer and fuel cell, energy storage technologies, etc.). It covers key aspects on energy conversion systems related to renewable energy technologies and their grid integration, techno-economic power dispatching from the distributed environmental-friendly energy sources considering combined heat and power applications, electrical energy network operation with increasing penetration of renewable energy sources, energy efficiency and demand side management, e-mobility, including machine learning applications for intelligent operation of energy systems, etc. The key objective of book is to educate the readers on how sustainable energy technologies can be integrated with energy conversion processes for achieving net zero targets in real-world applications. The book will serve as a useful reference for graduate students, academicians, industry professionals and policy makers interested in exploring the potential of energy technologies in development of sustainable energy system.
Download or read book IJPHM Special Issue on Wind Turbine PHM Color written by PHM Society and published by Lulu.com. This book was released on 2013-09-17 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: IJPHM Special issue on Wind Turbine PHM is the first special issue that discusses the state-of-the-art in PHM of wind turbine systems. This Special Issue contains 14 excellent papers that highlight a wide range of current research and application topics related to wind turbine PHM. Fault diagnostics is an important aspect of wind turbine PHM. Eight papers included in this special issue deal with fault diagnostics of different parts of a wind turbine. Each of these papers presents different fault diagnostic techniques and sensing technologies.
Download or read book Desalination written by Jane Kucera and published by John Wiley & Sons. This book was released on 2019-04-11 with total page 663 pages. Available in PDF, EPUB and Kindle. Book excerpt: This all-new revised edition of a modern classic is the most comprehensive and up-to-date coverage of the "green" process of desalination in industrial and municipal applications, covering all of the processes and equipment necessary to design, operate, and troubleshoot desalination systems. This is becoming increasingly more important for not only our world's industries, but our world's populations, as pure water becomes more and more scarce. "Blue is the new green." This is an all-new revised edition of a modern classic on one of the most important subjects in engineering: Water. Featuring a total revision of the initial volume, this is the most comprehensive and up-to-date coverage of the process of desalination in industrial and municipal applications, a technology that is becoming increasingly more important as more and more companies choose to "go green." This book covers all of the processes and equipment necessary to design, operate, and troubleshoot desalination systems, from the fundamental principles of desalination technology and membranes to the much more advanced engineering principles necessary for designing a desalination system. Earlier chapters cover the basic principles, the economics of desalination, basic terms and definitions, and essential equipment. The book then goes into the thermal processes involved in desalination, such as various methods of evaporation, distillation, recompression, and multistage flash. Following that is an exhaustive discussion of the membrane processes involved in desalination, such as reverse osmosis, forward osmosis, and electrodialysis. Finally, the book concludes with a chapter on the future of these technologies and their place in industry and how they can be of use to society. This book is a must-have for anyone working in water, for engineers, technicians, scientists working in research and development, and operators. It is also useful as a textbook for graduate classes studying industrial water applications.
Download or read book Fuel Cell Handbook Sixth Edition written by and published by DIANE Publishing. This book was released on with total page 451 pages. Available in PDF, EPUB and Kindle. Book excerpt:
