fundamentals-of-power-electronics.pdf

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Fundamentals of Power Electronics Instructor's slides Fundamentals of Power Electronics Instructor's slides Fundamentals of Power Electronics R. W. Erickson ● Chapter 12. Basic magnetics theory 196kB ● Chapter 13. Filter inductor design 67kB ● Chapter 14. Transformer design 175kB Accompanying material for instructors Part 4: Modern Rectifiers and Power System Harmonics The materials below are intended to be used by instructors of power electronics classes who have adopted Fundamentals of Power Electronics as a text. These instructors may download and use the files for educational purposes free of charge. Students and others who have purchased the text may also use the slides as an educational supplement to the text. Other uses of these materials is prohibited. All slides copyright R. W. Erickson 1997. ● Chapter 15. Power and harmonics in nonsinusoidal systems 91kB ● Chapter 16. Line-commutated rectifiers 130kB ● Chapter 17. The ideal rectifier 235kB ● Chapter 18. Low harmonic rectifier modeling and control Part 5: Resonant Converters ● Chapter 19. Resonant conversion 325kB ● Chapter 20. Quasi-resonant converters 177kB Appendices ● Appendix 1. RMS values of commonly-observed converter waveforms 26 kB ● Appendix 2. Magnetics design tables 26kB ● Appendix 3. Averaged switch modeling of a CCM SEPIC 41kB Update 11/30/98 rwe The slides for each chapter are contained in a .pdf file. These files can be read using the Adobe Acrobat viewer, available free from the Adobe Acrobat web site. Slides and overhead transpariencies covering the material of the entire book can be produced using these files. Back Introduction ● Chapter 1. Introduction 98kB Part 1: Converters in Equilibrium ● Chapter 2. Principles of steady-state converter analysis 126kB ● Chapter 3. Steady-state equivalent circuit modeling, losses, and efficiency 98kB ● Chapter 4. Switch realization 201kB ● Chapter 5. The discontinuous conduction mode 96kB ● Chapter 6. Converter circuits 283kB Part 2: Converter Dynamics and Control ● Chapter 7. Ac equivalent circuit modeling 422kB ● Chapter 8. Converter transfer functions ● Chapter 9. Controller design 365kB ● Chapter 10. Ac and dc equivalent circuit modeling of the discontinuous conduction mode 218kB ● Chapter 11. The current programmed mode 236kB Part 3: Magnetics http://ece-www.colorado.edu/~pwrelect/book/slides/slidedir.html (1 of 2) [25/04/2002 16:41:49] http://ece-www.colorado.edu/~pwrelect/book/slides/slidedir.html (2 of 2) [25/04/2002 16:41:49]

Revision to Fundamentals of Power Electronics Revision to Fundamentals of Power Electronics Fundamentals of Power Electronics ● Index 101kB -searchable with Adobe Acrobat First Edition R. W. Erickson Power Electronics Group, University of Colorado at Boulder About the second edition A new textbook on power electronics converters. This book is intended for use in introductory power electronics courses at the senior and first-year graduate level. It is also intended as a source for professionals working in power electronics, power conversion, and analog electronics. It emphasizes the fundamental concepts of power electronics, including averaged modeling of PWM converters and fundamentals of converter circuits and electronics, control systems, magnetics, low- harmonic rectifiers, and resonant converters. Publisher and vitals New York: Chapman and Hall, May 1997. Hardback ISBN 0-412-08541-0 TK7881.15.E75 1997 7"x10", 791 pages, 929 line illustrations. Note: Chapman and Hall has recently been acquired by Kluwer Academic Publishers Note to instructors: how to obtain a copy Errata, first printing Supplementary material for instructors ● Slides ● Solutions to selected problems Other supplementary material Proximity effect: computer functions 70kB Ferrite toroid data: Excel 5 spreadsheet Derivation of Gg0, Eqs. (11.84) and (11.85) Update 9/7/01 rwe More information regarding contents of book ● Complete Table of Contents ● Abridged Table of Contents: Chapter titles only ● Preface http://ece-www.colorado.edu/~pwrelect/book/bookdir.html (1 of 2) [25/04/2002 16:41:54] http://ece-www.colorado.edu/~pwrelect/book/bookdir.html (2 of 2) [25/04/2002 16:41:54]

CoPEC CoPEC Colorado Power Electronics Center University of Colorado, Boulder Revision to Fundamentals of Power Electronics Fundamentals of Power Electronics Second Edition About CoPEC Research Publications Students Faculty Courses Textbook: Fundamentals of Power Electronics Power Electronics in the CU Boulder Electrical and Computer Engineering Department Links to Other Power Electronics Sites Updated May 21, 2001. Authors: R. W. Erickson and D. Maksimovic University of Colorado, Boulder Publisher: Kluwer Academic Publishers 912 pages ISBN 0-7923-7270-0 ● First edition web site ● To order directly from the publisher ● Note to instructors: how to obtain desk copies ● Errata, second edition, first printing ● Errata, second edition, second printing ● New Certificate Program in Power Electronics ● PSPICE circuit files and library ● Courses at the University of Colorado that use the second edition ❍ ECEN 5797 Power http://ece-www.colorado.edu/~pwrelect/index.html [25/04/2002 16:41:56] http://ece-www.colorado.edu/~pwrelect/book/SecEd.html (1 of 6) [25/04/2002 16:42:05]

Revision to Fundamentals of Power Electronics Revision to Fundamentals of Power Electronics Electronics 1 ❍ ECEN 5807 Power Electronics 2 ❍ ECEN 5817 Power Electronics 3 Detailed description of revisions ● Contents ● Preface to the Second Edition ● Chapter 1 Introduction Major Features of the Second Edition Part 1. Converters in Equilibrium There are no substantial changes to the chapters of Part 1. ● New material on converter simulation using averaged switch models ● Major revision of material on current mode control, including tables of transfer functions of basic converters ● Major revision of material on averaged switch modeling ● New material covering input filter design and Middlebrook's extra element theorem ● Improved explanations of the proximity effect and MMF diagrams ● New section on design of multiple- winding magnetics using the Kg method, including new examples ● New material on soft switching, including active clamp snubbers, the ZVT full bridge converter, and ARCP ● Major revision of material on low- harmonic rectifiers, to improve flow and readability. New material on critical conduction mode control ● Major revision and simplification of the chapter on ac modeling of the discontinuous conduction mode ● Revised problems, and a solutions manual ● Chapter 2 Principles of Steady-State Converter Analysis ● Chapter 3 Steady-State Equivalent Circuit Modeling, Losses, and Efficiency ● Chapter 4 Switch Realization ● Chapter 5 The Discontinuous Conduction Mode ● Chapter 6 Converter Circuits Part 2. Converter Dynamics and Control ● Chapter 7 AC Equivalent Circuit Modeling Chapter 7 has been revised to improve the logical flow, including incorporation of the First Edition Appendix 3 into the chapter. The treatment of circuit averaging and averaged switch modeling (Section 7.4) has undergone major revision. Other changes include Fig. 7.4 and the related text, and Sections 7.2.2, 7.2.7. ● Chapter 8 Converter Transfer Functions Major revisions to Chapter 8 include a new introduction, a new input filter example in Section 8.1.8, and substantial changes to the buck-boost converter example of Section 8.2.1 and the material of Sections 8.3 and 8.4. ● Chapter 9 Controller Design Only minor changes to Chapter 9 were made. ● Chapter 10 Input Filter Design http://ece-www.colorado.edu/~pwrelect/book/SecEd.html (2 of 6) [25/04/2002 16:42:05] http://ece-www.colorado.edu/~pwrelect/book/SecEd.html (3 of 6) [25/04/2002 16:42:05] This is an entirely new chapter that treats how input filters modify the transfer functions of a dc-dc

Revision to Fundamentals of Power Electronics Revision to Fundamentals of Power Electronics converter, and how to design an input filter that is adequately damped. The approach is based on Middlebrook's Extra Element Theorem (EET) of Appendix C, although it is possible to teach this chapter without use of the EET. ● Chapter 16 Power and Harmonics in Nonsinusoidal Systems Information on harmonic standards has been updated. ● Chapter 11 AC and DC Equivalent Circuit Modeling of the Discontinuous Conduction Mode ● Chapter 17 Line-Commutated Rectifiers This chapter has been entirely revised and simplified. There is little change to this chapter. ● Chapter 12 Current Programmed Control ● Chapter 18 Pulse-Width Modulated Rectifiers Treatment of the "more accurate model" in Section 12.3 has undergone a major revision. The explanation is more straightforward, and results are summarized for the basic buck, boost, and buck-boost converters. The results of simulation are used to illustrate how current programming changes the converter transfer function. The treatment of discontinuous conduction mode in Section 12.4 has been shortened. Chapter 18 is a consolidation of Chapters 17 and 18 of the First Edition. The material has been completely reorganized, to improve its flow. A new section 18.2.2 has been added. Section 18.3.3 has been expanded, to better cover critical conduction mode control. The material on three-phase rectifier topologies has been streamlined. Part 3. Magnetics ● Chapter 13 Basic Magnetics Theory Part 5. Resonant Converters ● Chapter 19 Resonant Conversion The material on the skin and proximity effects has undergone a major revision, to better introduce the concepts of the proximity effect and MMF diagrams. The summary of operation of different magnetic devices has been moved from the filter inductor design chapter into this chapter. The order of the sections has been changed, to improve readability. Section 19.4 has been modified, to include better explanation of resonant inverter/electronic ballast design, and two examples have been added. The material on the ZVT converter has been moved to Chapter 20. ● Chapter 14 Inductor Design ● Chapter 20 Soft Switching A new section on design of multiple-winding inductors using the Kg method has been added, including two new examples. The summary of different magnetic devices has been moved to the previous chapter, and the material on winding area optimization (previously in the transformer design chapter) has been moved into this chapter. ● Chapter 15 Transformer Design Notation regarding maximum, peak, and saturation flux density has been made more clear. The section on winding area optimization has been moved to the previous chapter. A new Section 20.1 compares the turn-on and turn-off transitions of diode, MOSFET, and IGBT devices under the conditions of hard switching, zero-current switching, and zero-voltage switching. The material on quasi-resonant converters is unchanged. Coverage of multi-resonant and quasi-squarewave switches has been exapanded, and includes plots of switch characteristics. A new Section 20.4 has been added, which covers soft-switching techniques. Included in Section 20.4 is an expanded explanation of the ZVT full-bridge converter, new material on active-clamp snubbers, and a short treatment of the auxiliary resonant commutated pole. The material on ac modeling of ZCS quasi-resonant converters has been dropped. Part 4. Modern Rectifiers, Inverters, and Power System Harmonics Appendices ● Appendix A RMS Values of Commonly Observed Converter Waveforms http://ece-www.colorado.edu/~pwrelect/book/SecEd.html (4 of 6) [25/04/2002 16:42:05] http://ece-www.colorado.edu/~pwrelect/book/SecEd.html (5 of 6) [25/04/2002 16:42:05]

Revision to Fundamentals of Power Electronics This appendix is unchanged. ● Appendix B Simulation of Converters Appendix B is completely new. It covers SPICE simulation of converters using averaged switch models, including CCM, DCM, and current-programmed converters. This material complements the discussions of Chapters 7, 9, 11, 12, and 18. It has been placed in an appendix so that the chapter narratives are not interrupted by the details required to run a simulation program; nonetheless, the examples of this appendix are closely linked to the material covered in the chapters. ❍ PSPICE circuit files and library used in Appendix B ● Appendix C Middlebrook's Extra Element Theorem This is a completely new appendix that explains the Extra Element Theorem and includes four tutorial examples. This material can be taught in conjunction with Chapter 10 and Section 19.4, if desired. ● Appendix D Magnetics Design Tables This appendix is unchanged. Update 12/8/00 rwe Fundamentals of Power Electronics Fundamentals of Power Electronics Second Edition Up To instructors of Power Electronics courses: how to obtain an examination copy Evaluation copies are available on a 60-day approval basis. Please submit requests in writing on department letterhead and include the following course information: ● course name and number ● estimated enrollment ● semester date ● the text currently used ● your decision date Please direct all requests to the Textbook Marketing Department at Kluwer Academic Publishers at the Norwell (Americas) or Dordrecht (all other countries) offices: ● In the Americas: 101 Philip Drive Norwell, MA 02061 USA Telephone: (781) 871-6600 Fax: (781) 871-6528 Attention: Ulysses Guasch E-mail: ulysses.guasch@wkap.com ● All other countries: PO Box 989 3300 AZ Dordrecht The Netherlands Telephone: (0) 31 78 6392 392 Fax: (0) 31 78 6546 474 E-mail: services@wkap.nl Update 12/15/00 rwe http://ece-www.colorado.edu/~pwrelect/book/SecEd.html (6 of 6) [25/04/2002 16:42:05] http://ece-www.colorado.edu/~pwrelect/book/copies.html (1 of 2) [25/04/2002 16:42:07]

Fundamentals of Power Electronics Fundamentals of Power Electronics Table of Contents Fundamentals of Power Electronics R. W. Erickson Table of Contents Back 1. Introduction 1.1. Introduction to power processing 1.2. Several applications of power electronics 1.3. Elements of power electronics Part I. Converters in Equilibrium 2. Principles of steady state converter analysis 2.1. Introduction 2.2. Inductor volt-second balance, capacitor charge balance, and the small-ripple approximation 2.3. Boost converter example 2.4. Cuk converter example 2.5. Estimating the output voltage ripple in converters containing two-pole low-pass filters 2.6. Summary of key points 3. Steady-state equivalent circuit modeling, losses, and efficiency 3.1. The dc transformer model 3.2. Inclusion of inductor copper loss 3.3. Construction of equivalent circuit model 3.4. How to obtain the input port of the model 3.5. Example: Inclusion of semiconductor conduction losses in the boost converter model 3.6. Summary of key points 4. Switch realization 4.1. Switch applications 4.1.1. Single quadrant switches 4.1.2. Current-bidirectional two-quadrant switches 4.1.3. Voltage-bidirectional two-quadrant switch http://ece-www.colorado.edu/~pwrelect/book/copies.html (2 of 2) [25/04/2002 16:42:07] http://ece-www.colorado.edu/~pwrelect/book/contents/TOC.html (1 of 11) [25/04/2002 16:42:25]

Fundamentals of Power Electronics Table of Contents Fundamentals of Power Electronics Table of Contents 4.1.4. Four-quadrant switches 4.1.5. Synchronous rectifiers 4.2. A brief survey of power semiconductor devices 4.2.1. Power diodes 4.2.2. Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) 4.2.3. Bipolar Junction Transistor (BJT) 4.2.4. Insulated Gate Bipolar Transistor (IGBT) 4.2.5. Thyristors (SCR, GTO, MCT) 4.3. Switching loss 4.3.1. Transistor switching with clamped inductive load 4.3.2. Diode recovered charge 4.3.3. Device capacitances, and leakage, package, and stray inductances 4.3.4. Efficiency vs. switching frequency 4.4. Summary of key points 5. The discontinuous conduction mode 5.1. Origin of the discontinuous conduction mode, and mode boundary 5.2. Analysis of the conversion ratio M(D,K) 5.3. Boost converter example 5.4. Summary of results and key points 6. Converter circuits 6.1. Circuit manipulations 6.1.1. Inversion of source and load 6.1.2. Cascade connection of converters 6.1.3. Rotation of three-terminal cell 6.1.4. Differential connection of the load 6.2. A short list of converters 6.3. Transformer isolation 6.3.1. Full-bridge and half-bridge isolated buck converters 6.3.2. Forward converter 6.3.3. Push-pull isolated buck converter 6.3.4. Flyback converter 6.3.5. Boost-derived isolated converters 6.3.6. Isolated versions of the SEPIC and the Cuk converter 6.4. Converter evaluation and design 6.4.1. Switch stress and utilization 6.4.2. Design using computer spreadsheet 6.5. Summary of key points Part II. Converter Dynamics and Control 7. AC modeling 7.1. Introduction 7.2. The basic ac modeling approach 7.2.1. Averaging the inductor waveforms 7.2.2. Discussion of the averaging approximation 7.2.3. Averaging the capacitor waveforms 7.2.4. The average input current 7.2.5. Perturbation and linearization 7.2.6. Construction of the small-signal equivalent circuit model 7.2.7. Results for several basic converters 7.3. Example: A nonideal flyback converter 7.4. State-space averaging 7.4.1. The state equations of a network 7.4.2. The basic state-space averaged model 7.4.3. Discussion of the state-space averaging result 7.4.4. Example: State-space averaging of a nonideal buck-boost converter 7.5. Circuit averaging and averaged switch modeling 7.5.1. Obtaining a time-invariant circuit 7.5.2. Circuit averaging 7.5.3. Perturbation and linearization 7.5.4. Averaged switch modeling 7.6. The canonical circuit model 7.6.1. Development of the canonical circuit model 7.6.2. Example: Manipulation of the buck-boost converter model into canonical form 7.6.3. Canonical circuit parameter values for some common converters http://ece-www.colorado.edu/~pwrelect/book/contents/TOC.html (2 of 11) [25/04/2002 16:42:25] http://ece-www.colorado.edu/~pwrelect/book/contents/TOC.html (3 of 11) [25/04/2002 16:42:25]

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