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Investigation Into The Design Of A Low Voltage Output Dc Dc Converter For Use In A Redundant Paralleling Application
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Book Synopsis Investigation Into the Design of a Low Voltage Output Dc/dc Converter for Use in a Redundant Paralleling Application by : John Kingston
Download or read book Investigation Into the Design of a Low Voltage Output Dc/dc Converter for Use in a Redundant Paralleling Application written by John Kingston and published by . This book was released on 2001 with total page 103 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modeling and Design of Multi-port DC/DC Converters by : Zhijun Qian
Download or read book Modeling and Design of Multi-port DC/DC Converters written by Zhijun Qian and published by . This book was released on 2010 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this dissertation, a new satellite platform power architecture based on paralleled three-port DC/DC converters is proposed to reduce the total satellite power system mass. Moreover, a four-port DC/DC converter is proposed for renewable energy applications where several renewable sources are employed. Compared to the traditional two-port converter, three-port or four-port converters are classified as multi-port converters. Multi-port converters have less component count and less conversion stage than the traditional power processing solution which adopts several independent two-port converters. Due to their advantages multi-port converters recently have attracted much attention in academia, resulting in many topologies for various applications. But all proposed topologies have at least one of the following disadvantages: 1) no bidirectional port; 2) lack of proper isolation; 3) too many active and passive components; 4) no soft-switching. In addition, most existing research focuses on the topology investigation, but lacks study on the multi-port converter's control aspects, which are actually very challenging since it is a multi-input multi-output control system and has so many cross-coupled control loops. A three-port converter is proposed and used for space applications. The topology features bidirectional capability, low component count and soft-switching for all active switches, and has one output port to meet certain isolating requirements. For the system level control strategy, the multi-functional central controller has to achieve maximal power harvesting for the solar panel, the battery charge control for the battery, and output voltage regulation for the dc bus. In order to design these various controllers, a good dynamic model of the control object should be obtained first. Therefore, a modeling procedure based on a traditional state-space averaging method is proposed to characterize the dynamic behavior of such a multi-port converter. The proposed modeling method is clear and easy to follow, and can be extended for other multi-port converters. In order to boost the power level of the multi-port converter system and allow redundancy, the three-port converters are paralleled together. The current sharing control for the multi-port converters has rarely been reported. A so called "dual loop" current sharing control structure is identified to be suitable for the paralleled multi-port converters, since its current loop and the voltage loop can be considered and designed independently, which simplifies the multi-port converter's loop analysis. The design criteria for that dual loop structure are also studied to achieve good current sharing dynamics while guaranteeing the system stability. The renewable energy applications are continuously demanding the low cost solution, so that the renewable energy might have a more competitive dollar per kilowatt figure than the traditional fossil fuel power generation. For this reason, the multi-port converter is a good candidate for such applications due to the low component count and low cost. Especially when several renewable sources are combined to increase the power delivering certainty, the multi-port solution is more beneficial since it can replace more separate converters. A four-port converter is proposed to interface two different renewable sources, such as the wind turbine and the solar panel, one bidirectional battery device, and the galvanically isolated load. The four-port converter is based on the traditional half-bridge topology making it easy for the practicing power electronics engineer to follow the circuit design. Moreover, this topology can be extended into n input ports which allow more input renewable sources. Finally, the work is summarized and concluded, and references are listed.
Book Synopsis Analysis and Design of Multicell DC/DC Converters Using Vectorized Models by : Thierry Meynard
Download or read book Analysis and Design of Multicell DC/DC Converters Using Vectorized Models written by Thierry Meynard and published by John Wiley & Sons. This book was released on 2015-03-16 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt: Shows how the concepts of vectorization and design masks can be used to help the designer in comparing different designs and making the right choices. The book addresses series and parallel multicell conversion directly, and the concepts can be generalized to describe other topologies.
Book Synopsis Non-Isolated DC-DC Converters for Renewable Energy Applications by : Frede Blaabjerg
Download or read book Non-Isolated DC-DC Converters for Renewable Energy Applications written by Frede Blaabjerg and published by CRC Press. This book was released on 2021-04-22 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photovoltaic (PV) energy generation is an excellent example of large-scale electric power generation through various parallel arrangements of small voltage-generating solar cells or modules. However, PV generation systems require power electronic converters system to satisfy the need for real-time applications or to balance the demand for power from electric. Therefore, a DC-DC power converter is a vital constituent in the intermediate conversion stage of PV power. This book presents a comprehensive review of various non-isolated DC-DC power converters. Non-isolated DC-DC converters for renewable energy system (RES) application presented in this book 1st edition through a detailed original investigation, obtained numerical/experimental results, and guided the scope to design new families of converters: DC-DC multistage power converter topologies, Multistage "X-Y converter family", Nx IMBC (Nx Interleaved Multilevel Boost Converter), Cockcroft Walton (CW) Voltage Multiplier-Based Multistage/Multilevel Power Converter (CW-VM-MPC) converter topologies, and Z-source and quasi Z-source. Above solutions are discussed to show how they can achieve the maximum voltage conversion gain ratio by adapting the passive/active component within the circuits. For assessment, we have recommended novel power converters through their functionality and designs, tested and verified by numerical software. Further, the hardware prototype implementation is carried out through a flexible digital processor. Both numerical and experimental results always shown as expected close agreement with primary theoretical hypotheses. This book offers guidelines and recommendation for future development with the DC-DC converters for RES applications based on cost-effective, and reliable solutions.
Book Synopsis Advanced Multiphasing Switched-Capacitor DC-DC Converters by : Nicolas Butzen
Download or read book Advanced Multiphasing Switched-Capacitor DC-DC Converters written by Nicolas Butzen and published by Springer Nature. This book was released on 2020-07-03 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives a detailed analysis of switched-capacitor DC-DC converters that are entirely integrated on a single chip and establishes that these converters are mainly limited by the large parasitic coupling, the low capacitor energy density, and the fact that switched-capacitor converter topologies only have a fixed voltage conversion ratio. The authors introduce the concept of Advanced Multiphasing as a way to circumvent these limitations by having multiple out-of-phase parallel converter cores interact with each other to minimize capacitor charging losses, leading to several techniques that demonstrate record efficiency and power-density, and even a fundamentally new type of switched-capacitor topology that has a continuously-scalable conversion ratio. Provides single-source reference to the recently-developed Advanced Multiphasing concept; Enables greatly improved performance and capabilities in fully integrated switched-capacitor converters; Enables readers to design DC-DC converters, where multiple converter cores are put in parallel and actively interact with each other over several phases to improve their capabilities.
Book Synopsis DC-DC Power Converter Design & Implementation by : Irfan Jamil
Download or read book DC-DC Power Converter Design & Implementation written by Irfan Jamil and published by . This book was released on 2013-10 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bachelor Thesis from the year 2013 in the subject Electrotechnology, grade: Bachelor, Harbin Engineering University (College of Automation), course: Electronics, language: English, abstract: In recent years, with the development of power electronic devices control theory and the increasing demand of high-quality power supply, power electronics technology has aroused widely attention from scholars. DC-DC power converters are employed in a variety of applications, including power supplies for personal computers, office equipment; spacecraft power systems, laptop, Cell phones, and telecommunications equipment, as well as dc motor drives. In this project a detailed study of zero current switching buck converters is done and also practically implemented in hardware. In addition a mathematical analysis of switching loss occurring in MOSFET's is also presented and a short study of zero voltage switching is also appended. During the hardware implementation the Ton, Toff and operating frequency were found out and thoroughly tuned through the IC555 circuit and various waveforms across inductors, capacitors, load resistor and test points were noted down. In this thesis, the Buck type circuit structure and working principle are analyzed and a DC-DC buck converter is designed. The designed converter uses ZCS scheme and realized the function that the power form is converted from 12V DC voltages to 5 V DC voltages. The output voltage can be adjusted according to the output resistor. The output voltage is stable and the performance of the designed converter is ensured. Simulation study was carried out and effectiveness of the designed converter is verified by simulation results. Finlay design is implemented in hardware and PCB layout as well.
Book Synopsis Design and Implementation of Fully-Integrated Inductive DC-DC Converters in Standard CMOS by : Mike Wens
Download or read book Design and Implementation of Fully-Integrated Inductive DC-DC Converters in Standard CMOS written by Mike Wens and published by Springer Science & Business Media. This book was released on 2011-05-10 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: CMOS DC-DC Converters aims to provide a comprehensive dissertation on the matter of monolithic inductive Direct-Current to Direct-Current (DC-DC) converters. For this purpose seven chapters are defined which will allow the designer to gain specific knowledge on the design and implementation of monolithic inductive DC-DC converters, starting from the very basics.
Book Synopsis Design of Efficient Low Voltage High Current DC-DC Power Supplies by : Hari Krishna Prasad Papisetti
Download or read book Design of Efficient Low Voltage High Current DC-DC Power Supplies written by Hari Krishna Prasad Papisetti and published by LAP Lambert Academic Publishing. This book was released on 2012-03 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: DC to DC power converters find major applications in all central processing unit (CPU) power supplies. The modern trend is to go towards lower power supply voltages; the reason for this is to limit power at high clock frequencies (in GHz) employed. The current demanded by the processors are high. On account of this development there is a great demand for DC to DC converters with low output voltages and high currents. Typically the operating voltage is 1.5V or less and current levels are higher than 50A as specified for the forthcoming INTEL P4 chips. The low voltage, high current power supplies have the option of powering from a 12V bus [1] or 48V bus [2]. The required efficiency of the power supply has to be greater than 80%. The challenge in such converters is achieving high efficiency. This thesis addresses the challenges involved in the design of efficient low voltage, high current DC to DC power supply. Synchronous rectifiers are used as a standard method for achieving high efficiency in low voltage output converters. This thesis, besides employing synchronous rectifiers, proposes two additional innovations towards the goal of high efficiency.
Book Synopsis Advanced DC-DC Power Converters and Switching Converters by : Salvatore Musumeci
Download or read book Advanced DC-DC Power Converters and Switching Converters written by Salvatore Musumeci and published by MDPI. This book was released on 2021-03-30 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nowadays, power electronics is an enabling technology in the energy development scenario. Furthermore, power electronics is strictly linked with several fields of technological growth, such as consumer electronics, IT and communications, electrical networks, utilities, industrial drives and robotics, and transportation and automotive sectors. Moreover, the widespread use of power electronics enables cost savings and minimization of losses in several technology applications required for sustainable economic growth. The topologies of DC–DC power converters and switching converters are under continuous development and deserve special attention to highlight the advantages and disadvantages for use increasingly oriented towards green and sustainable development. DC–DC converter topologies are developed in consideration of higher efficiency, reliable control switching strategies, and fault-tolerant configurations. Several types of switching converter topologies are involved in isolated DC–DC converter and nonisolated DC–DC converter solutions operating in hard-switching and soft-switching conditions. Switching converters have applications in a broad range of areas in both low and high power densities. The articles presented in the Special Issue titled "Advanced DC-DC Power Converters and Switching Converters" consolidate the work on the investigation of the switching converter topology considering the technological advances offered by innovative wide-bandgap devices and performance optimization methods in control strategies used.
Book Synopsis Control of Series-Parallel Conversion Systems by : Xinbo Ruan
Download or read book Control of Series-Parallel Conversion Systems written by Xinbo Ruan and published by Springer. This book was released on 2018-12-11 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: Series-parallel conversion systems, in which multiple standardized converter modules are connected in series or parallel at the input and output sides, to meet the demands of various applications. This book focuses on the control strategies for the series-parallel conversion systems with DC-DC converters and DC-AC inverters as the basic modules, respectively, to achieve input voltage/current sharing and output voltage/current sharing among the constituent modules. The detailed theoretical analysis with design examples and experimental validations are presented. This book is essential and valuable reference for graduate students and academics majoring in power electronics and engineers engaged in developing DC-DC converters, DC-AC inverters and power electronics transformers.
Book Synopsis High-Frequency Isolated Bidirectional Dual Active Bridge DC–DC Converters with Wide Voltage Gain by : Deshang Sha
Download or read book High-Frequency Isolated Bidirectional Dual Active Bridge DC–DC Converters with Wide Voltage Gain written by Deshang Sha and published by Springer. This book was released on 2018-05-17 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by experts, this book is based on recent research findings in high-frequency isolated bidirectional DC-DC converters with wide voltage range. It presents advanced power control methods and new isolated bidirectional DC-DC topologies to improve the performance of isolated bidirectional converters. Providing valuable insights, advanced methods and practical design guides on the DC-DC conversion that can be considered in applications such as microgrid, bidirectional EV chargers, and solid state transformers, it is a valuable resource for researchers, scientists, and engineers in the field of isolated bidirectional DC-DC converters.
Book Synopsis Dynamics and Control of DC-DC Converters by : Farzin Asadi
Download or read book Dynamics and Control of DC-DC Converters written by Farzin Asadi and published by Springer Nature. This book was released on 2022-05-31 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: DC-DC converters have many applications in the modern world. They provide the required power to the communication backbones, they are used in digital devices like laptops and cell phones, and they have widespread applications in electric cars, to just name a few. DC-DC converters require negative feedback to provide a suitable output voltage or current for the load. Obtaining a stable output voltage or current in presence of disturbances such as: input voltage changes and/or output load changes seems impossible without some form of control. This book tries to train the art of controller design for DC-DC converters. Chapter 1 introduces the DC-DC converters briefly. It is assumed that the reader has the basic knowledge of DC-DC converter (i.e., a basic course in power electronics). The reader learns the disadvantages of open loop control in Chapter 2. Simulation of DC-DC converters with the aid of Simulink® is discussed in this chapter as well. Extracting the dynamic models of DC-DC converters is studied in Chapter 3. We show how MATLAB® and a software named KUCA can be used to do the cumbersome and error-prone process of modeling automatically. Obtaining the transfer functions using PSIM® is studied as well. These days, softwares are an integral part of engineering sciences. Control engineering is not an exception by any means. Keeping this in mind, we design the controllers using MATLAB® in Chapter 4. Finally, references are provided at the end of each chapter to suggest more information for an interested reader. The intended audiencies for this book are practice engineers and academians.
Book Synopsis Reconfigurable Switched-Capacitor Power Converters by : Dongsheng Ma
Download or read book Reconfigurable Switched-Capacitor Power Converters written by Dongsheng Ma and published by Springer Science & Business Media. This book was released on 2012-07-25 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides readers specializing in ultra-low power supply design for self-powered applications an invaluable reference on reconfigurable switched capacitor power converters. Readers will benefit from a comprehensive introduction to the design of robust power supplies for energy harvesting and self-power applications, focusing on the use of reconfigurable switched capacitor based DC-DC converters, which is ideal for such applications. Coverage includes all aspects of switched capacitor power supply designs, from fundamentals, to reconfigurable power stages, and sophisticated controller designs.
Book Synopsis Soft Commutation Isolated DC-DC Converters by : Ivo Barbi
Download or read book Soft Commutation Isolated DC-DC Converters written by Ivo Barbi and published by Springer. This book was released on 2018-08-27 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the operation and analysis of soft-commutated isolated DC–DC converters used in the design of high efficiency and high power density equipment. It explains the basic principles behind first- and second-order circuits with power switches to enable readers to understand the importance of these converters in high efficiency and high power density power supply design for residential, commercial, industrial and medical use as well as in aerospace equipment. With each chapter featuring a different power converter topology, the book covers the most important resonant converters, including series resonant converters; resonant LLC converters; soft commutation pulse width modulation converters; zero voltage switching; and zero current switching. Each topic is presented with full analysis, a showcase of the power stages of the converters, exercises and their solutions as well as simulation results, which mainly focus on the commutation analysis and output characteristic. This book is a valuable source of information for professionals working in power electronics, power conversion and design of high efficiency and high power density DC–DC converters and switch mode power supplies. The book also serves as a point of reference for engineers responsible for development projects and equipment in companies and research centers and a text for advanced students.
Book Synopsis Design and Performance Analysis of a Medium-power Dc-dc Converter by : Arthur G. Birchenough
Download or read book Design and Performance Analysis of a Medium-power Dc-dc Converter written by Arthur G. Birchenough and published by . This book was released on 1970 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The design and performance of an experimental dc-dc converter are described. The converter was rated for a power output of 1 kW, with a 150-percent overload rating, and it produced a 200-V, +1-percent, dc output from an input of 56 V, +10 and -20 percent. Voltage regulation is accomplished by varying the duty cycle of the internal 7-kHz quasi-square-wave carrier. Integrated circuits in the control section, a proportional current drive system, and powdered metal cores (Ni-17Fe-2Mo) for the power transformer were some of the design features. The measured efficiency peaked at 92 percent and was 88 percent at 1 kW. The total component weight was 6 lb (2.7 kg).
Book Synopsis High Temperature DC-to-DC Converters for Downhole Applications by : Andreas König
Download or read book High Temperature DC-to-DC Converters for Downhole Applications written by Andreas König and published by . This book was released on 2009 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis the thermal management and the electric design of high temperature DC/DC converters for a medium-voltage DC transmission system are analyzed. this transmission system enables an energy transmission from surface to downhole ambients with a relatively high transmission voltage and consequently low current. Downhole, a DC/DC converter system is required to convert the transmission voltage to a lower voltage which is suitable for drives to power pumps. Within the DC/DC converter system, several identical galvanically isolated DC/DC converter modules are connected in series at the input and in parallel at the output. The converter system is assemble within a cylindric housing with a diameter of only a few centimeters. On the outside pumped fluid passes byu which can be used for cooling. Limited space and high ambient temperatures require a sophisticated converter design. The main focus of this work is the thermal design and based on the results of the presented analysis the electrical design of the converter system is carried out. With the help of experiments the theoretical and simulative investigations are verified. Furthermore, a technique is presented to operate the semiconductors of the active part of the this converter at their thermal limit. This is enabled with the help of a junction temperature measurement system which offers a direct access to the inner device temperature during operation."--Provided by publisher.
Book Synopsis New Topologies and Modulation Schemes for Soft-Switching Isolated DC–DC Converters by : Zhiqiang Guo
Download or read book New Topologies and Modulation Schemes for Soft-Switching Isolated DC–DC Converters written by Zhiqiang Guo and published by Springer Nature. This book was released on 2019-09-20 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a series of new topologies and modulation schemes for soft-switching in isolated DC–DC converters. Providing detailed analyses and design procedures for converters used in a broad range of applications, it offers a wealth of engineering insights for researchers and students in the field of power electronics, as well as stimulating new ideas for future research.
