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Silicon Carbide Jfet Based Solid State Circuit Breakers For Medium Voltage Dc Systems
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Book Synopsis Silicon Carbide JFET Based Solid State Circuit Breakers for Medium Voltage DC Systems by : Aref Moradkhani Roshandeh
Download or read book Silicon Carbide JFET Based Solid State Circuit Breakers for Medium Voltage DC Systems written by Aref Moradkhani Roshandeh and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of SiC VJFET Devices for Scalable Solid-State Circuit Breakers by :
Download or read book Evaluation of SiC VJFET Devices for Scalable Solid-State Circuit Breakers written by and published by . This book was released on 2008 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Power electronic converters functioning as components in high power systems, such as those of hybrid military ground vehicles require fast fault isolation, and in most cases benefit additionally from bi-directional fault isolation. To prevent converter damage or failure, fault current interrupt speeds in the hundreds of microseconds to few millisecond range are necessary. Presently used mechanical contractors do not provide adequate actuation speeds, and suffer severe degradation during repeated fault isolation. Instead, it is desired to use a large array of semiconductor devices having a collectively low conduction loss to provide large current handling capability and fast transition speed for current interruption. This report discusses the use of SiC MOSFETs and the evaluation of SiC JFETs for a bi-directional solid-state circuit breaker application.
Book Synopsis Smart Cities Policies and Financing by : John R. Vacca
Download or read book Smart Cities Policies and Financing written by John R. Vacca and published by Elsevier. This book was released on 2022-01-19 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt: Smart Cities Policies and Financing: Approaches and Solutions is the definitive professional reference for harnessing the full potential of policy making and financial planning in smart cities. It covers the effective tools for capturing the dynamic relations between people, policies, financing, and environments, and where they are most often useful and effective for all relevant stakeholders. The book examines the key role of science, technology, and innovation (STI) - especially in information and communications technologies - in the design, development, and management of smart cities policies and financing. It identifies the problems and offers practical solutions in implementation of smart infrastructure policies and financing. Smart Cities Policies and Financing is also about how the implementation of smart infrastructure projects (related to the challenges of the lack of financing and the application of suitable policies) underlines the key roles of science, technology and innovation (STI) communities in addressing these challenges and provides key policies and financing that will help guide the design and development of smart cities. Brings together experts from academia, government and industry to offer state-of- the-art solutions for improving the lives of billions of people in cities around the globe Creates awareness among governments of the various policy tools available, such as output-based contracting, public-private partnerships, procurement policies, long-term contracting, and targeted research funds in order to promote smart infrastructure implementation, and encouraging the use of such tools to shape markets for smart infrastructure and correct market failures Ensures the insclusiveness of smart city projects by adequately addressing the special needs of marginalized sections of society including the elderly, persons with disabilities, and inhabitants of informal settlements and informal sectors Ensures gender considerations in the design of smart cities and infrastructure through the use of data generated by smart systems to make cities safer and more responsive to the needs of women Demonstrate practical implementation through real-life case studies Enhances reader comprehension using learning aids such as hands-on exercises, checklists, chapter summaries, review questions, and an extensive appendix of additional resources
Book Synopsis Advanced High Speed Devices by : Michael S. Shur
Download or read book Advanced High Speed Devices written by Michael S. Shur and published by World Scientific. This book was released on 2010 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced High Speed Devices covers five areas of advanced device technology: terahertz and high speed electronics, ultraviolet emitters and detectors, advanced III-V field effect transistors, III-N materials and devices, and SiC devices. These emerging areas have attracted a lot of attention and the up-to-date results presented in the book will be of interest to most device and electronics engineers and scientists. The contributors range from prominent academics, such as Professor Lester Eastman, to key US Government scientists, such as Dr Michael Wraback. Sample Chapter(s). Chapter 1: Simulation and Experimental Results on Gan Based Ultra-Short Planar Negative Differential Conductivity Diodes for THZ Power Generation (563 KB). Contents: Simulation and Experimental Results on GaN Basee Ultra-Short Planar Negative Differential Conductivity Diodes for THz Power Generation (B Aslan et al.); Millimeter Wave to Terahertz in CMOS (K K O S Sankaran et al.); Surface Acoustic Wave Propagation in GaN-On-Sapphire Under Pulsed Sub-Band Ultraviolet Illumination (V S Chivukula et al.); The First 70nm 6-Inch GaAs PHEMT MMIC Process (H Karimy et al.); Performance of MOSFETs on Reactive-Ion-Etched GaN Surfaces (K Tang et al.); GaN Transistors for Power Switching and Millimeter-Wave Applications (T Ueda et al.); Bi-Directional Scalable Solid-State Circuit Breakers for Hybrid-Electric Vehicles (D P Urciuoli & V Veliadis); and other papers. Readership: Electronic engineers, solid state physicists, graduate students studying physics or electrical engineering.
Book Synopsis Advanced technologies for planning and operation of prosumer energy systems by : Bin Zhou
Download or read book Advanced technologies for planning and operation of prosumer energy systems written by Bin Zhou and published by Frontiers Media SA. This book was released on 2023-04-28 with total page 1092 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigate Advanced Approaches on Direct Current Solid-State Circuit Breakers by : Reza Kheirollahi
Download or read book Investigate Advanced Approaches on Direct Current Solid-State Circuit Breakers written by Reza Kheirollahi and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Direct current (dc) power systems are gaining more attention in academia and industry due to their advantages compared with conventional alternating current (AC) power networks. DC systems present higher efficiency at the same voltage levels, they need no frequency synchronization and reactive power compensation, and they ease the integration of renewable energies. Despite the advantages of dc power systems, there are still several technical and practical challenges that slow down their widespread adoption and development worldwide. One of the primary technical challenges that must be addressed is the development of dc circuit breakers (DCCBs).Among DCCBs, dc solid-state circuit breakers (SSCBs) use semiconductor devices to conduct load currents during the normal operation and hold dc bus voltages during the breaker OFF-state. Among many benefits, SSCBs present an ultrafast response speed, a modular structure, no arc problems, extended operation cycles, and a high compactness, fulfilling the urgent needs of emerging technologies such as electric ships. However, solid-state switches used in SSCBs have limited voltage/current turn-off capability and thermal capacity, requiring more investigations in the field. This thesis focuses on advanced techniques to enhance lifetime, safety, and reliability in dc SSCBs. There are four main contributions as follows. Firstly, soft turn-off dc SSCBs are introduced, where compact and fast active injection circuits (AIC) are used to eliminate the transient energy and mitigate gate voltage oscillations in solid-state switches during current interruption, extending the SSCBs lifetime. Second, active snubbers in dc SSCBs are discussed, and novel topologies are presented to extend the maximum allowable dc bus voltage on SSCBs, remove the voltage on passive components during the SSCBs OFF-state, and solve the reliability issue of varistors in SSCBs. Next, fault current bypass-based dc SSCBs are proposed, where fault currents are reduced to zero at the load side or faulty sections within microseconds regardless of the dc system's line inductance, improving safety. Finally, SSCBs are studied at the system-level, and a new protective scheme is developed to optimally coordinate dc ultrafast SSCBs in multi-source dc microgrids. In summary, dc SSCBs play a key role in newly established dc power systems. SSCBs present a fast response speed, a modular structure, and high compactness. In this thesis, advanced techniques are introduced to improve lifetime, safety, and reliability in dc SSCBs at device- and system-level.
Book Synopsis Solid-state Circuit Breakers in DC Distribution Networks by : Leslie David Tracy
Download or read book Solid-state Circuit Breakers in DC Distribution Networks written by Leslie David Tracy and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The design and development of two direct current (DC) solid-state circuit breakers (SSCBs) for use in low voltage DC distribution systems were examined. Both SSCBs utilized the isolated-gate bipolar transistor (IGBT) and were developed for low current applications of under 20 A. The approach was documented to show the advancement of IGBT technology and the fundamental understanding of high-side drive topologies and their applications. A 500 V 20 A SSCB was designed to accommodate specifications provided by Portland Architects and Engineers (PAE). The design featured two optocoupler gate drives to operate four non punch through (NPT) IGBTs in parallel, and a thermal experimentation led to the calculated temperature rise at full load operation to be 9.79 °C above ambient temperature. The SSCB’s response to over current events of 120 A and 180 A was simulated to show a maximum voltage of 883 V and 1.21 kV respectively. The second SSCB developed was designed and experimentally tested to operate at 50 V with up to 10 A of continuous current using free air conditions. Experimental response and trip times for pickup (PU), total clearing time (TCT), and switching time (SWT) were found to average 43.74 μs, 47.53 μs, and 3.79 μs respectively. The average response time was found to be roughly 290 times faster than that of a conventional mechanical circuit breakers (MCBs) operation and exemplifies how the SSCB can be used to fill the gaps in conventional alternating current (AC) protection systems. The DC distribution system is capable of extreme faults that could damage sensitive power electronic equipment, and the DC distribution system and the SSCB are a continuing point of research that has the potential to drive the power industry to higher efficiencies and better utilization of clean energy systems.
Book Synopsis Direct Current Fault Protection by : Isik C. Kizilyalli
Download or read book Direct Current Fault Protection written by Isik C. Kizilyalli and published by Springer Nature. This book was released on 2023-05-23 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: The lack of effective DC fault protection technology remains a major barrier for the DC paradigm shift. In addressing the key challenges, Direct Current Fault Protection: Basic Concepts and Technology Advances starts with an introduction to the advantages of DC power systems before moving on to an in-depth review of DC fault protection technologies, including mechanical circuit breaker (MCB), solid-state circuit breaker (SSCB), hybrid circuit breaker (HCB), converter based (breakerless) protection, and fault current limiter (FCL). Coverage includes a comprehensive comparison of various DC fault interruption technologies and their suitable applications, state-of-the-art DC fault protection concepts and advances in research, identification of fundamental challenges and future directions in the field, and commercialization aspects. This book will be a valuable reference for practicing engineers, researchers, and graduate students in the field of power electronics and DC power systems.
Book Synopsis SiC Technology by : Maurizio Di Paolo Emilio
Download or read book SiC Technology written by Maurizio Di Paolo Emilio and published by Springer Nature. This book was released on with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Current Sources and Voltage References by : Linden T. Harrison
Download or read book Current Sources and Voltage References written by Linden T. Harrison and published by Elsevier. This book was released on 2005-08-22 with total page 603 pages. Available in PDF, EPUB and Kindle. Book excerpt: Current Sources and Voltage References provides fixed, well-regulated levels of current or voltage within a circuit. These are two of the most important “building blocks “ of analog circuits, and are typically used in creating most analog IC designs. Part 1 shows the reader how current sources are created, how they can be optimized, and how they can be utilized by the OEM circuit designer. The book serves as a “must-have reference for the successful development of precision circuit applications. It shows practical examples using either BJTs, FETs, precision op amps, or even matched CMOS arrays being used to create highly accurate current source designs, ranging from nanoAmps to Amps. In each chapter the most important characteristics of the particular semiconductor type being studied are carefully reviewed. This not only serves as a helpful refresher for experienced engineers, but also as a good foundation for all EE student coursework, and includes device models and relevant equations. Part 2 focuses on semiconductor voltage references, from their design to their various practical enhancements. It ranges from the simple Zener diode to today’s most advanced topologies, including Analog Devices’ XFET® and Intersil’s FGATM (invented while this book was being written). Over 300 applications and circuit diagrams are shown throughout this easy-to-read, practical reference book. * Discusses how to design low-noise, precision current sources using matched transistor pairs. * Explains the design of high power current sources with power MOSFETs * Gives proven techniques to reduce drift and improve accuracy in voltage references.
Book Synopsis Wide Bandgap Semiconductor Power Devices by : B. Jayant Baliga
Download or read book Wide Bandgap Semiconductor Power Devices written by B. Jayant Baliga and published by Woodhead Publishing. This book was released on 2018-10-17 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wide Bandgap Semiconductor Power Devices: Materials, Physics, Design and Applications provides readers with a single resource on why these devices are superior to existing silicon devices. The book lays the groundwork for an understanding of an array of applications and anticipated benefits in energy savings. Authored by the Founder of the Power Semiconductor Research Center at North Carolina State University (and creator of the IGBT device), Dr. B. Jayant Baliga is one of the highest regarded experts in the field. He thus leads this team who comprehensively review the materials, device physics, design considerations and relevant applications discussed. Comprehensively covers power electronic devices, including materials (both gallium nitride and silicon carbide), physics, design considerations, and the most promising applications Addresses the key challenges towards the realization of wide bandgap power electronic devices, including materials defects, performance and reliability Provides the benefits of wide bandgap semiconductors, including opportunities for cost reduction and social impact
Download or read book IGBT Modules written by Andreas Volke and published by . This book was released on 2012 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Introduction to Instrumentation and Measurements by : Robert B. Northrop
Download or read book Introduction to Instrumentation and Measurements written by Robert B. Northrop and published by CRC Press. This book was released on 2018-09-03 with total page 952 pages. Available in PDF, EPUB and Kindle. Book excerpt: Weighing in on the growth of innovative technologies, the adoption of new standards, and the lack of educational development as it relates to current and emerging applications, the third edition of Introduction to Instrumentation and Measurements uses the authors’ 40 years of teaching experience to expound on the theory, science, and art of modern instrumentation and measurements (I&M). What’s New in This Edition: This edition includes material on modern integrated circuit (IC) and photonic sensors, micro-electro-mechanical (MEM) and nano-electro-mechanical (NEM) sensors, chemical and radiation sensors, signal conditioning, noise, data interfaces, and basic digital signal processing (DSP), and upgrades every chapter with the latest advancements. It contains new material on the designs of micro-electro-mechanical (MEMS) sensors, adds two new chapters on wireless instrumentation and microsensors, and incorporates extensive biomedical examples and problems. Containing 13 chapters, this third edition: Describes sensor dynamics, signal conditioning, and data display and storage Focuses on means of conditioning the analog outputs of various sensors Considers noise and coherent interference in measurements in depth Covers the traditional topics of DC null methods of measurement and AC null measurements Examines Wheatstone and Kelvin bridges and potentiometers Explores the major AC bridges used to measure inductance, Q, capacitance, and D Presents a survey of sensor mechanisms Includes a description and analysis of sensors based on the giant magnetoresistive effect (GMR) and the anisotropic magnetoresistive (AMR) effect Provides a detailed analysis of mechanical gyroscopes, clinometers, and accelerometers Contains the classic means of measuring electrical quantities Examines digital interfaces in measurement systems Defines digital signal conditioning in instrumentation Addresses solid-state chemical microsensors and wireless instrumentation Introduces mechanical microsensors (MEMS and NEMS) Details examples of the design of measurement systems Introduction to Instrumentation and Measurements is written with practicing engineers and scientists in mind, and is intended to be used in a classroom course or as a reference. It is assumed that the reader has taken core EE curriculum courses or their equivalents.
Book Synopsis Gallium Nitride Power Devices by : Hongyu Yu
Download or read book Gallium Nitride Power Devices written by Hongyu Yu and published by CRC Press. This book was released on 2017-07-06 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: GaN is considered the most promising material candidate in next-generation power device applications, owing to its unique material properties, for example, bandgap, high breakdown field, and high electron mobility. Therefore, GaN power device technologies are listed as the top priority to be developed in many countries, including the United States, the European Union, Japan, and China. This book presents a comprehensive overview of GaN power device technologies, for example, material growth, property analysis, device structure design, fabrication process, reliability, failure analysis, and packaging. It provides useful information to both students and researchers in academic and related industries working on GaN power devices. GaN wafer growth technology is from Enkris Semiconductor, currently one of the leading players in commercial GaN wafers. Chapters 3 and 7, on the GaN transistor fabrication process and GaN vertical power devices, are edited by Dr. Zhihong Liu, who has been working on GaN devices for more than ten years. Chapters 2 and 5, on the characteristics of polarization effects and the original demonstration of AlGaN/GaN heterojunction field-effect transistors, are written by researchers from Southwest Jiaotong University. Chapters 6, 8, and 9, on surface passivation, reliability, and package technologies, are edited by a group of researchers from the Southern University of Science and Technology of China.
Book Synopsis Power Electronics Handbook by : Muhammad H. Rashid
Download or read book Power Electronics Handbook written by Muhammad H. Rashid and published by Elsevier. This book was released on 2010-07-19 with total page 1189 pages. Available in PDF, EPUB and Kindle. Book excerpt: Power electronics, which is a rapidly growing area in terms of research and applications, uses modern electronics technology to convert electric power from one form to another, such as ac-dc, dc-dc, dc-ac, and ac-ac with a variable output magnitude and frequency. Power electronics has many applications in our every day life such as air-conditioners, electric cars, sub-way trains, motor drives, renewable energy sources and power supplies for computers. This book covers all aspects of switching devices, converter circuit topologies, control techniques, analytical methods and some examples of their applications. * 25% new content* Reorganized and revised into 8 sections comprising 43 chapters* Coverage of numerous applications, including uninterruptable power supplies and automotive electrical systems* New content in power generation and distribution, including solar power, fuel cells, wind turbines, and flexible transmission
Book Synopsis Power Electronics by : B. W. Williams
Download or read book Power Electronics written by B. W. Williams and published by Palgrave. This book was released on 1987 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Power Electronics Semiconductor Devices by : Robert Perret
Download or read book Power Electronics Semiconductor Devices written by Robert Perret and published by John Wiley & Sons. This book was released on 2013-03-01 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book relates the recent developments in several key electrical engineering R&D labs, concentrating on power electronics switches and their use. The first sections deal with key power electronics technologies, MOSFETs and IGBTs, including series and parallel associations. The next section examines silicon carbide and its potentiality for power electronics applications and its present limitations. Then, a dedicated section presents the capacitors, key passive components in power electronics, followed by a modeling method allowing the stray inductances computation, necessary for the precise simulation of switching waveforms. Thermal behavior associated with power switches follows, and the last part proposes some interesting prospectives associated to Power Electronics integration.
