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Design And Evaluation Of Active Power Factor Correction Circuit Operation In Discontinuous Inductor Current Mode
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Book Synopsis Design and Evaluation of Active Power Factor Correction Circuit Operation in Discontinuous Inductor Current Mode by : 陳卓雄。
Download or read book Design and Evaluation of Active Power Factor Correction Circuit Operation in Discontinuous Inductor Current Mode written by 陳卓雄。 and published by . This book was released on 2017-01-27 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Design and Evaluation of Active Power Factor Correction Circuit Operation in Discontinuous Inductor Current Mode by : Chuk-hung Chan
Download or read book Design and Evaluation of Active Power Factor Correction Circuit Operation in Discontinuous Inductor Current Mode written by Chuk-hung Chan and published by . This book was released on 1999 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Power Electronics and Energy Conversion Systems, Fundamentals and Hard-switching Converters by : Adrian Ioinovici
Download or read book Power Electronics and Energy Conversion Systems, Fundamentals and Hard-switching Converters written by Adrian Ioinovici and published by John Wiley & Sons. This book was released on 2013-04-02 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: Power Electronics and Energy Conversion Systems is a definitive five-volume reference spanning classical theory through practical applications and consolidating the latest advancements in energy conversion technology. Comprehensive yet highly accessible, each volume is organised in a basic-to-sophisticated crescendo, providing a single-source reference for undergraduate and graduate students, researchers and designers. Volume 1 Fundamentals and Hard-switching Converters introduces the key challenges in power electronics from basic components to operation principles and presents classical hard- and soft-switching DC to DC converters, rectifiers and inverters. At a more advanced level, it provides comprehensive analysis of DC and AC models comparing the available approaches for their derivation and results. A full treatment of DC to DC hard-switching converters is given, from fundamentals to modern industrial solutions and practical engineering insight. The author elucidates various contradictions and misunderstandings in the literature, for example, in the treatment of the discontinuous conduction operation or in deriving AC small-signal models of converters. Other key features: • Consolidates the latest advancements in hard-switching converters including discontinuous capacitor voltage mode, and their use in power-factor-correction applications • Includes fully worked design examples, exercises, and case studies, with discussion of the practical consequences of each choice made during the design • Explains all topics in detail with step-by-step derivation of formulas appropriate for energy conversion courses • End-of-section review of the learned material • Includes topics treated in recent journal, conference and industry application coverage on solutions, theory and practical concerns With emphasis on clear explanation, the text offers both a thorough understanding of DC to DC converters for undergraduate and graduate students in power electronics, and more detailed material suitable for researchers, designers and practising engineers working on the development and design of power electronics. This is an accessible reference for engineering and procurement managers from industries such as consumer electronics, integrated circuits, aerospace and renewable energy.
Book Synopsis Three-phase Boost Active Power Factor Correction for Diode Rectifiers by : John Gerard Nairus
Download or read book Three-phase Boost Active Power Factor Correction for Diode Rectifiers written by John Gerard Nairus and published by . This book was released on 1995 with total page 128 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 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 Fundamentals of Power Electronics by : Robert W. Erickson
Download or read book Fundamentals of Power Electronics written by Robert W. Erickson and published by Springer Science & Business Media. This book was released on 2007-05-08 with total page 882 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamentals of Power Electronics, Second Edition, is an up-to-date and authoritative text and reference book on power electronics. This new edition retains the original objective and philosophy of focusing on the fundamental principles, models, and technical requirements needed for designing practical power electronic systems while adding a wealth of new material. Improved features of this new edition include: A new chapter on input filters, showing how to design single and multiple section filters; Major revisions of material on averaged switch modeling, low-harmonic rectifiers, and the chapter on AC modeling of the discontinuous conduction mode; New material on soft switching, active-clamp snubbers, zero-voltage transition full-bridge converter, and auxiliary resonant commutated pole. Also, new sections on design of multiple-winding magnetic and resonant inverter design; Additional appendices on Computer Simulation of Converters using averaged switch modeling, and Middlebrook's Extra Element Theorem, including four tutorial examples; and Expanded treatment of current programmed control with complete results for basic converters, and much more. This edition includes many new examples, illustrations, and exercises to guide students and professionals through the intricacies of power electronics design. Fundamentals of Power Electronics, Second Edition, is intended for use in introductory power electronics courses and related fields for both senior undergraduates and first-year graduate students interested in converter circuits and electronics, control systems, and magnetic and power systems. It will also be an invaluable reference for professionals working in power electronics, power conversion, and analogue and digital electronics.
Book Synopsis Design and Analysis of an Active Power Factor Correction Circuit by : Chen Zhou
Download or read book Design and Analysis of an Active Power Factor Correction Circuit written by Chen Zhou and published by . This book was released on 1989 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Power Factor Correction Using Single Stage Discontinuous Conduction Mode Booster Rectifier by : Hussain Sabri Athab
Download or read book Power Factor Correction Using Single Stage Discontinuous Conduction Mode Booster Rectifier written by Hussain Sabri Athab and published by . This book was released on 2003 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: A single stage three-phase power factor correction circuit using a boost input current shaper has been described in both simulation and experimental work. To reduce the cost and avoid complexity the boost dc-to-dc converter is operated in discontinuous conduction mode using only one active switch. A low cost harmonic injection method for single switch three-phase DCM boost rectifiers has been simulated and tested. In this method, a periodic voltage which is proportional to the inverted ac component of the rectified three-phase line-to-line input voltage is injected in the control circuit to vary the duty cycle of the rectifier switch within a line cycle, so that the fifth-order harmonics of the input current is reduced to meet THD
Book Synopsis Power Factor Correction in a Single Phase AC to DC Converter by :
Download or read book Power Factor Correction in a Single Phase AC to DC Converter written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Electronic equipments recently in use (PCs, TVs, and Telecommunication Equipments etc.) require power conditioning of some form, typically rectification, for their proper working. But since they have non-linear input characteristics and they are connected the electricity distribution network they produce a non-sinusoidal line current. Current of frequency components which are multiples of the natural frequency are produced that are otherwise called the line harmonics. With constantly increasing demand of these kind of equipments at a high rate, line current harmonics have become a significant problem. There has been an introduction of a lot of international standards which pose limitations on the harmonic content in the line currents of equipments connected to electricity distribution networks. This calls for measures to reduce the line current harmonics which is also otherwise known as Power Factor Correction - PFC. There exist two kinds of power factor correction techniques - passive power factor correction and active power factor correction. In this thesis we tried to devise an active power factor correction method for improvement of the power factor. In this work the advantages of a boost converter is combined with that of the average current mode control to implement the technique. UC3854 was used to design the power factor corrector. This integrated circuit had all the circuits necessary to control a power factor corrector and was designed to implement the average current mode control.
Book Synopsis Electrical & Electronics Abstracts by :
Download or read book Electrical & Electronics Abstracts written by and published by . This book was released on 1997 with total page 2240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Coordination and Control of Power Converters in Modern Power Systems by : Hao Tian
Download or read book Coordination and Control of Power Converters in Modern Power Systems written by Hao Tian and published by Frontiers Media SA. This book was released on 2023-12-12 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Design of Active Power Factor Corrector by : Kuiyuan Wu
Download or read book Design of Active Power Factor Corrector written by Kuiyuan Wu and published by LAP Lambert Academic Publishing. This book was released on 2014-09-16 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: The input current harmonics of the rectifier is very harmful. Not only does it reduce the power factor of the AC-DC converter and cause a lot of electrical energy loss; but also it will damage other devices and pollute the line power system. Measures should be taken to reduce these harmonics. The commonly used method is to design an effective PFC circuit for the AC-DC converter. In this book, a boost APFC circuit will be discussed in detail. It can work satisfactorily from full load to half load scope. The detailed design process will be described for this project, including topology choice, theoretical calculation of the main components values, the determination of the main components for this circuit, circuit simulation and experimental verification. According to the schematic design and the simulation revision, a test prototype is built to verify the performance. Several tests are implemented and the final experimental results indicate that this circuit design can satisfy the project specification and it is feasible for this project. As a reference book, it is suitable for electrical engineers and experts to check when they develop relevant power electronics products.
Book Synopsis Papers on Power by : University of Oregon Center for Art Research
Download or read book Papers on Power written by University of Oregon Center for Art Research and published by . This book was released on 2021-10 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: CFAR's Papers on Power is a series of commissioned essays for which artists, writers, activists, and cultural producers have been asked to respond to the question "What is power?" in whatever form best relates to their work and thinking.
Book Synopsis Control and Nonlinear Dynamics on Energy Conversion Systems by : Herbert Ho-Ching Iu
Download or read book Control and Nonlinear Dynamics on Energy Conversion Systems written by Herbert Ho-Ching Iu and published by MDPI. This book was released on 2019-07-01 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ever-increasing need for higher efficiency, smaller size, and lower cost make the analysis, understanding, and design of energy conversion systems extremely important, interesting, and even imperative. One of the most neglected features in the study of such systems is the effect of the inherent nonlinearities on the stability of the system. Due to these nonlinearities, these devices may exhibit undesirable and complex dynamics, which are the focus of many researchers. Even though a lot of research has taken place in this area during the last 20 years, it is still an active research topic for mainstream power engineers. This research has demonstrated that these systems can become unstable with a direct result in increased losses, extra subharmonics, and even uncontrollability/unobservability. The detailed study of these systems can help in the design of smaller, lighter, and less expensive converters that are particularly important in emerging areas of research like electric vehicles, smart grids, renewable energy sources, and others. The aim of this Special Issue is to cover control and nonlinear aspects of instabilities in different energy conversion systems: theoretical, analysis modelling, and practical solutions for such emerging applications. In this Special Issue, we present novel research works in different areas of the control and nonlinear dynamics of energy conversion systems.
Book Synopsis Introduction to Modern Power Electronics by : Andrzej M. Trzynadlowski
Download or read book Introduction to Modern Power Electronics written by Andrzej M. Trzynadlowski and published by John Wiley & Sons. This book was released on 2015-11-16 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides comprehensive coverage of the basic principles and methods of electric power conversion and the latest developments in the field This book constitutes a comprehensive overview of the modern power electronics. Various semiconductor power switches are described, complementary components and systems are presented, and power electronic converters that process power for a variety of applications are explained in detail. This third edition updates all chapters, including new concepts in modern power electronics. New to this edition is extended coverage of matrix converters, multilevel inverters, and applications of the Z-source in cascaded power converters. The book is accompanied by a website hosting an instructor’s manual, a PowerPoint presentation, and a set of PSpice files for simulation of a variety of power electronic converters. Introduction to Modern Power Electronics, Third Edition: Discusses power conversion types: ac-to-dc, ac-to-ac, dc-to-dc, and dc-to-ac Reviews advanced control methods used in today’s power electronic converters Includes an extensive body of examples, exercises, computer assignments, and simulations Introduction to Modern Power Electronics, Third Edition is written for undergraduate and graduate engineering students interested in modern power electronics and renewable energy systems. The book can also serve as a reference tool for practicing electrical and industrial engineers.
Book Synopsis Advances in Control of Power Electronic Converters by : Germain Garcia
Download or read book Advances in Control of Power Electronic Converters written by Germain Garcia and published by Mdpi AG. This book was released on 2022-01-18 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book proposes a list of contributions in the field of control of power electronics converters for different topologies: DC-DC, DC-AC and AC-DC. It particularly focuses on the use of different advanced control techniques with the aim of improving the performances, flexibility and efficiency in the context of several operation conditions. Sliding mode control, fuzzy logic based control, dead time compensation and optimal linear control are among the techniques developed in the special issue. Simulation and experimental results are provided by the authors to validate the proposed control strategies.
