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Analysis Of Power Factor Correction Converters
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Book Synopsis Analysis of Power Factor Correction Converters by : Thomas Yeh
Download or read book Analysis of Power Factor Correction Converters written by Thomas Yeh and published by . This book was released on 1992 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Power Converter with capacitive input filter is a non-linear load to the Utility AC power lines. There are widely used as Switch-Mode Power Supplies in office equipment applications ranging from Personal Computers to Office Printers and Copiers. The distorted input current waveform extracted by the capacitive input filter of the power converters produces unwanted harmonics which propagates to other line powered equipments. The harmonic pollutes the AC lines and interferes with the operations of sensitive line powered equipments. The distorted current waveform also leads to inefficient utilization of the available power from the AC outlet. This is because the AC line power is transferred to the load only when each frequency component of the line voltage is an in-phase, scaler related quantity with respect to the same frequency component of the extracted current. The problems of poor power factor and harmonic distortion are compounded by the proliferation of Switch-Mode power supplies and the situation is rapidly becoming intolerable. The problem of poor quality input current waveform can be described by two quantitative measurements: Power Factor (pf) and Total Harmonic Distortion (thd). Two general approaches are available to remedy the problem. One approach is to install passive filter networks between the Utility AC lines and the capacitive input filter. The second approach is to design active power processors as dedicated Power Factor Correction (pfc) Converters and installed as the front end to the capacitive input filter to shape the distorted current waveform into waveforms which will yield higher power factor. This Thesis first introduce the general concept of PF and harmonic distortion in Chapter 1. Chapter 2 derive the mathematical description of pf based on the concept of real power (pR) and apparent power (pA). Both sinusoidal and nonsinusoidal cases are studied. For comparison and completeness, two popular passive power factor correction filter networks are analyzed in Chapter 3 to derive the maximum achievable power factor for each network along with the corresponding harmonic distortions. Governing equations are derived and presented graphically as a function of the filter network and load parameters. Chapter 4 provides the analysis of active power factor correction using switch mode Boost Converter. The analysis is carried out for two types of current controllers used as the current modulators for current waveform shaping. The state space averaged modeling approach is employed to derive the mathematical model of the Boost Converter suitable for large signal time domain and small signal frequency domain analysis. The model is further extended to derive the describing equations for the Boost Converter operating as pfc converter. Characteristics of the two current controller functions impacting the pfc operation are studied to expose their relative strength and limitations. The analysis includes the supplementation of the current control loop by an outer voltage control loop to regulate the output capacitor voltage of the pfc converter. The large signal analysis is first investigated for PF, waveform quality and voltage regulation. The small signal analysis follows to extract the frequency domain behavior of the pfc Boost Converter. The limitation of the voltage control bandwidth and its effect on the achievable pf is discussed. Chapter 5 verified the analysis through computer simulation using PSPICE. The original works of Bello based on Berkeley SPICE are modified for PSPICE. The models are extended to implement the PFC control functions and simulated in both large signal time domain and small signal frequency domain. Both the analysis and computer simulation results are compared to a published design of pfc Converter."--Abstract.
Book Synopsis Analysis and Design of Switching Converters for Power Factor Correction Applications by :
Download or read book Analysis and Design of Switching Converters for Power Factor Correction Applications written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Ph. D., Dept. of Electronic and Information Engineering, The Hong Kong Polytechnic University, 2004.
Book Synopsis Recent Advances in Power Electronics and Drives by : Jitendra Kumar
Download or read book Recent Advances in Power Electronics and Drives written by Jitendra Kumar and published by Springer. This book was released on 2021-12-05 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents select proceedings of the Electric Power and Renewable Energy Conference 2020 (EPREC-2020). It provides rigorous discussions, case studies, and recent developments in the emerging areas of power electronics, especially, power inverter and converter, electrical drives, regulated power supplies, operation of FACTS & HVDC, etc. The readers would be benefited in enhancing their knowledge and skills in these domain areas. The book will be a valuable reference for beginners, researchers, and professionals interested in advancements in power electronics and drives.
Book Synopsis Development and Analysis of High-frequency, High-density PFC Power Conversion by : Ali Saeed AlShehab
Download or read book Development and Analysis of High-frequency, High-density PFC Power Conversion written by Ali Saeed AlShehab and published by . This book was released on 2015 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis explores the design of power converters that deliver isolated low-voltage dc output (~24V) and operate from "universal" ac input voltage (85 - 264 Vac RMS). It is important that these converters have good overall efficiency (~90-95%), and good ac line power factor (>0.9, and ideally >0.95) to better utilize the available energy. This thesis looks into achieving high efficiency, high power factor, low voltage stresses, and smaller component sizes by utilizing high frequency operation. The research focuses on component and subsystem evaluation, development and testing as a part of many-person research in this space. The thesis presents a literature based study on current PFC circuit designs and tradeoffs. It also introduces a specific PFC architecture, which provides a low dc output voltage drawing energy from a wide range ac input voltage while maintaining a high power factor. The architecture includes two stages: The first is a "Power Factor Correction" (PFC) which functions as an input stage drawing energy from a wide-range input current. It uses a resonant transition inverted (RTI) buck converter topology to step down the voltage from line voltage (85 - 264 Vac RMS) to around 72V. Furthermore, the inductor for the RTI buck is analyzed. The middle stage is an energy buffer to provide the required energy level for twice line frequency energy buffering and 20ms of energy hold up. The capacitor requirements, analysis, and selection are explored and developed. The second stage is a transformation and regulation stage which also provides electrical isolation between the ac input and dc output. The thesis also explores the use of available conventional high-density telecom "brick" converters as a second stage. In conclusion, the project explores the possibility of using a buck configuration for the PFC, sacrificing the ability to use high energy density 400V capacitors while gaining the advantage of using the high-density telecom brick converters and different output voltage options.
Book Synopsis Power Electronics and Renewable Energy Systems by : C. Kamalakannan
Download or read book Power Electronics and Renewable Energy Systems written by C. Kamalakannan and published by Springer. This book was released on 2014-11-19 with total page 1546 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book is a collection of high-quality peer-reviewed research papers presented in the Proceedings of International Conference on Power Electronics and Renewable Energy Systems (ICPERES 2014) held at Rajalakshmi Engineering College, Chennai, India. These research papers provide the latest developments in the broad area of Power Electronics and Renewable Energy. The book discusses wide variety of industrial, engineering and scientific applications of the emerging techniques. It presents invited papers from the inventors/originators of new applications and advanced technologies.
Book Synopsis Analysis and Design of Switching Converters for Power Factor Correction Applications by : Dah-chuan Dylan Lu
Download or read book Analysis and Design of Switching Converters for Power Factor Correction Applications written by Dah-chuan Dylan Lu and published by . This book was released on 2004 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Stability of Different Types of Power Factor Correction by : Reham Haroun Mohamed
Download or read book Stability of Different Types of Power Factor Correction written by Reham Haroun Mohamed and published by LAP Lambert Academic Publishing. This book was released on 2012-05 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Single phase high power factor rectification is the most frequently accomplished using a boost converter. The input current shaping approach results in low line currents harmonic distortion and a power factor close to unity at the interface between the ac line and the rectifier. Various techniques are available for active current shaping, average current mode control, nonlinear control and one cycle control. Most of them are now supported by dedicated integrated circuits. Average-current-mode control is the regular control where the inductor current is forced to follow the input voltage. Recently nonlinear phenomena have been obvious in AC/DC converters which results in unstable regime such as period doubling and chaos. During these operating regimes, the input current distorts and therefore, breaks the operation of PFC converters. In this book, a study for stability for the three practical controls of boost PFC converter is introduced. Each technique has been tested to determine the practical limitation for stable regions. Design guidelines are made clear for stable operation in the examined control techniques. Experimental results confirm simulation with good matching.
Book Synopsis Analysis and Design of High-power Resonant Converters and a Unified Approach to Power Factor Correction by : Rui Liu
Download or read book Analysis and Design of High-power Resonant Converters and a Unified Approach to Power Factor Correction written by Rui Liu and published by . This book was released on 1991 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Steady State and Dynamic Analysis and Optimization of Single-stage Power Factor Correction Converters by : Khalid W. Rustom
Download or read book Steady State and Dynamic Analysis and Optimization of Single-stage Power Factor Correction Converters written by Khalid W. Rustom and published by . This book was released on 2007 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation will present an in-depth study of innovative solutions that address these problems directly, rather than proposing more topologies with the same type of issues. The direct energy transfer concept is analyzed and presented as a promising solution for the majority of the single-stage PFC converter limitations. Three topologies are presented and analyzed based on this innovative structure. To complete the picture, the dynamics of a variety of single-stage converters can be analyzed using a proposed switched transformer model.
Book Synopsis Design and Analysis of Power Factor Correction Zero-current Switching Switched-capacitor Quasi-resonant Converters by : Ka-kuen Law
Download or read book Design and Analysis of Power Factor Correction Zero-current Switching Switched-capacitor Quasi-resonant Converters written by Ka-kuen Law and published by . This book was released on 2005 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Design and Analysis of Power Factor Correction Zero-current Switching Switched-capacitor Quasi-resonant Converters by :
Download or read book Design and Analysis of Power Factor Correction Zero-current Switching Switched-capacitor Quasi-resonant Converters written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: M. Phil., Dept. of Electrical Engineering, The Hong Kong Polytechnic University, 2005.
Book Synopsis Complex Behavior of Switching Power Converters by : Chi Kong Tse
Download or read book Complex Behavior of Switching Power Converters written by Chi Kong Tse and published by CRC Press. This book was released on 2003-07-28 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt: Power electronics is a discipline spawned by real-life applications in industrial, commercial, residential and aerospace environments. Much of its development evolves around some immediate need for solving specific power conversion problems. This comprehensive book focuses on the typical bifurcation scenarios and nonlinear behavior observed in swit
Book Synopsis Multilevel Converters: Analysis, Modulation, Topologies, and Applications by : Gabriele Grandi
Download or read book Multilevel Converters: Analysis, Modulation, Topologies, and Applications written by Gabriele Grandi and published by MDPI. This book was released on 2019-10-14 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a collection of scientific papers concerning multilevel inverters examined from different points of view. Many applications are considered, such as renewable energy interface, power conditioning systems, electric drives, and chargers for electric vehicles. Different topologies have been examined in both new configurations and well-established structures, introducing novel and particular modulation strategies, and examining the effect of modulation techniques on voltage and current harmonics and the total harmonic distortion.
Book Synopsis Design and Control of Power Converters 2020 by : Manuel Arias
Download or read book Design and Control of Power Converters 2020 written by Manuel Arias and published by MDPI. This book was released on 2021-06-04 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, nine papers focusing on different fields of power electronics are gathered, all of which are in line with the present trends in research and industry. Given the generality of the Special Issue, the covered topics range from electrothermal models and losses models in semiconductors and magnetics to converters used in high-power applications. In this last case, the papers address specific problems such as the distortion due to zero-current detection or fault investigation using the fast Fourier transform, all being focused on analyzing the topologies of high-power high-density applications, such as the dual active bridge or the H-bridge multilevel inverter. All the papers provide enough insight in the analyzed issues to be used as the starting point of any research. Experimental or simulation results are presented to validate and help with the understanding of the proposed ideas. To summarize, this book will help the reader to solve specific problems in industrial equipment or to increase their knowledge in specific fields.
Book Synopsis Control Techniques for Power Converters with Integrated Circuit by : Wen-Wei Chen
Download or read book Control Techniques for Power Converters with Integrated Circuit written by Wen-Wei Chen and published by Springer. This book was released on 2017-12-28 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers an overview of power electronic applications in the study of power integrated circuit (IC) design, collecting novel research ideas and insights into fast transient response to prevent the output voltage from dropping significantly at the undershoot. It also discusses techniques and training to save energy and increase load efficiency, as well as fast transient response and high efficiency, which are the most important factors for consumer products that implement power IC. Lastly, the book focuses on power electronics for system loop analysis and optimal compensation design to help users and engineers implement their applications. The book is a valuable resource for university researchers, power IC R&D engineers, application engineers and graduate students in power electronics who wish to learn about the power IC design principles, methods, system behavior, and applications in consumer products.
Book Synopsis Pulse-width Modulated DC-DC Power Converters by : Marian K. Kazimierczuk
Download or read book Pulse-width Modulated DC-DC Power Converters written by Marian K. Kazimierczuk and published by John Wiley & Sons. This book was released on 2014-03-31 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fully worked solutions with clear explanations The Pulse-width Modulated DC-DC Power Converters: Solutions Manual provides solutions to the practice problems in the text. Fully worked, each solution includes formulas and diagrams as necessary to help you understand the approach, and explanations clarify the reasoning behind the correct answer. The solutions are aligned chapter-by-chapter with the text, and provide useful guidance that can help you identify your level of comprehension. Designed to make your study time more productive, this solutions manual is an invaluable tool for anyone studying electricity and electrical engineering.
Book Synopsis Power Electronics by : Branko L. Dokić
Download or read book Power Electronics written by Branko L. Dokić and published by Springer. This book was released on 2014-11-26 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the result of the extensive experience the authors gained through their year-long occupation at the Faculty of Electrical Engineering at the University of Banja Luka. Starting at the fundamental basics of electrical engineering, the book guides the reader into this field and covers all the relevant types of converters and regulators. Understanding is enhanced by the given examples, exercises and solutions. Thus this book can be used as a textbook for students, for self-study or as a reference book for professionals.
