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E-raamat: Power Electronic Systems: Walsh Analysis with MATLAB(R)

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  • Formaat: 297 pages
  • Ilmumisaeg: 19-Dec-2017
  • Kirjastus: CRC Press Inc
  • Keel: eng
  • ISBN-13: 9781482215977
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Power Electronic Systems: Walsh Analysis with MATLAB(R)Suurem pilt
  • Formaat: 297 pages
  • Ilmumisaeg: 19-Dec-2017
  • Kirjastus: CRC Press Inc
  • Keel: eng
  • ISBN-13: 9781482215977
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A Totally Different Outlook on Power Electronic System Analysis







Power Electronic Systems: Walsh Analysis with MATLAB®

builds a case for Walsh analysis as a powerful tool in the study of power electronic systems. It considers the application of Walsh functions in analyzing power electronic systems, and the advantages offered by Walsh domain analysis of power electronic systems.

Solves Power Electronic Systems in an Unconventional Way

This book successfully integrates power electronics as well as systems and control. Incorporating a complete orthonormal function set very much unlike the sinecosine functions, it introduces a blending between piecewise constant orthogonal functions and power electronic systems. It explores the background and evolution of power electronics, and discusses Walsh and related orthogonal basis functions. It develops the mathematical foundation of Walsh analysis, and first- and second-order system analyses by Walsh technique. It also describes the Walsh domain operational method and how it is applied to linear system analysis.







Introduces Theories Step by Step

While presenting the underlying principles of Walsh analysis, the authors incorporate many illustrative examples, and include a basic introduction to linear algebra and MATLAB® programs. They also examine different orthogonal piecewise constant basis functions like Haar, Walsh, slant, block pulse functions, and other related orthogonal functions along with their time scale evolution.

Analyzes pulsefed single input single output (SISO) first- and second-order systems

Considers stepwise and continuously pulse width modulated chopper systems

Describes a detailed analysis of controlled rectifier circuits

Addresses inverter circuits







Power Electronic Systems: Walsh Analysis with MATLAB®

is written for postgraduate students, researchers, and academicians in the area of power electronics as well as systems and control.

Arvustused

"One of the salient features of power electronic dynamics is the switching of the waveforms involved in the phenomenon. However, time domain analysis of power electronics often uses Fourier series to represent waveforms despite its smooth nature and its difficulties to compactly represent switching signals. This book uses Walsh Series, a switching orthogonal set of functions, to more effectively represent waveforms in power electronics. The book may be the only one in the market with this philosophy."J Jesus Rico-Melgoza, Universidad Michoacana de San Nicolas de Hidalgo, Morelia, Mexico

" a remarkable job of presenting the subject in a clear and coherent manner. My recommendation to anyone who is interested in the analysis any other system with such discontinuous phenomena: This book may guide you to the use of appropriate tools."Ganti Prasada Rao, Member, UNESCO-EOLSS Joint Committee

" an authoritative reference for researchers and engineering professionals with an interest in the area of power electronic systems, their optimization and practical applications." Radomir S. Stankovi, Dept. of Computer science, Faculty of Electronic Engineering, Ni, Serbia

" a refreshing approach based on Walsh analysis and presents an alternate approach to Fourier series approach that is usually followed. The material presented is quite systematic. Even if one does not have any prior knowledge on the topics, the book is still very much readable. It presents a detail bottom-to-top tutorial approach in each chapter, with adequate background material in first two chapters, which I am sure will make it quite easier for the students and practicing engineers to follow the concepts effortlessly."Radhakant Padhi, Indian Institute of Science, Bangalore

List of Principal Symbols
xi
Preface xiii
Authors xv
1 Introduction
1(10)
1.1 Evolution of Power Electronics
1(1)
1.2 Analysis of Power Electronic Circuits
2(5)
1.2.1 Fourier Series Technique
4(1)
1.2.2 Laplace Transform Method
4(1)
1.2.3 Existence Function Technique
5(1)
1.2.4 State Variable Method
5(1)
1.2.5 Averaging Technique
6(1)
1.2.6 z-Transform Analysis
6(1)
1.2.7 Other Methods of Analysis
6(1)
1.3 Search for a New Method of Analysis
7(4)
References
8(3)
2 An Alternative Class of Orthogonal Functions
11(36)
2.1 Orthogonal Functions and Their Properties
11(2)
2.2 Haar Functions
13(2)
2.3 Rademacher and Walsh Functions
15(7)
2.3.1 Representation of a Function Using Walsh Functions
21(1)
2.4 Block Pulse Functions and Their Applications
22(5)
2.4.1 Representation of a Function as a Linear Combination of BPFs
25(2)
2.5 Slant Functions
27(1)
2.6 Delayed Unit Step Functions
28(2)
2.7 General Hybrid Orthogonal Functions
30(1)
2.8 Sample-and-Hold Functions
30(2)
2.9 Triangular Functions
32(2)
2.10 Hybrid Function: A Combination of SHF and TF
34(2)
2.11 Applications of Walsh Functions
36(11)
References
40(7)
3 Walsh Domain Operational Method of System Analysis
47(42)
3.1 Introduction to Operational Matrices
47(15)
3.1.1 Operational Matrix for Integration
48(7)
3.1.1.1 Representation of Integration of a Function Using Operational Matrix for Integration
55(3)
3.1.2 Operational Matrix for Differentiation
58(1)
3.1.2.1 Representation of Differentiation of a Function Using Operational Matrix for Differentiation
59(3)
3.2 Time Scaling of Operational Matrices
62(3)
3.2.1 Time-Scaled Operational Matrix for Integration
63(2)
3.2.2 Time-Scaled Operational Matrix for Differentiation
65(1)
3.3 Philosophy of the Proposed Walsh Domain Operational Technique
65(4)
3.4 Analysis of a First-Order System with Step Input
69(3)
3.5 Analysis of a Second-Order System with Step Input
72(1)
3.6 Oscillatory Phenomenon in Walsh Domain System Analysis
73(13)
3.6.1 Oscillatory Phenomenon in a First-Order System
74(1)
3.6.2 Analytical Study of the Oscillatory Phenomenon
75(11)
3.7 Conclusion
86(3)
References
86(3)
4 Analysis of Pulse-Fed Single-Input Single-Output Systems
89(42)
4.1 Analysis of a First-Order System
90(4)
4.1.1 Single-Pulse Input
90(2)
4.1.2 Pulse-Pair Input
92(1)
4.1.3 Alternating Double-Pulse Input
92(2)
4.2 Analysis of a Second-Order System
94(3)
4.2.1 Single-Pulse Input
94(1)
4.2.2 Pulse-Pair Input
95(1)
4.2.3 Alternating Double-Pulse Input
95(2)
4.3 Pulse-Width Modulated Chopper System
97(30)
4.3.1 Case I: Stepwise PWM
97(1)
4.3.1.1 Walsh Function Representation of Significant Current Variables
97(3)
4.3.1.2 Determination of Normalized Average and rms Currents through Load and Semiconductor Components
100(3)
4.3.1.3 Determination of Exact Normalized Average and rms Current Equations Considering Switching Transients
103(4)
4.3.2 Case II: Continuous PWM
107(4)
4.3.2.1 Mathematical Operations
111(1)
4.3.2.2 Simulation of an Ideal Continuously Pulse-Width Modulated DC Chopper System
112(1)
4.3.2.3 Determination of Normalized Average and rms Currents through Load and Semiconductor Components
113(7)
4.3.2.4 Simulation of an Ideal Chopper-Fed DC Series Motor
120(7)
4.4 Conclusion
127(4)
References
128(3)
5 Analysis of Controlled Rectifier Circuits
131(34)
5.1 Representation of a Sine Wave by Walsh Functions
132(2)
5.2 Conventional Analysis of Half-Wave Controlled Rectifier
134(3)
5.3 Walsh Domain Analysis of Half-Wave Controlled Rectifier
137(8)
5.3.1 Computational Algorithm
140(5)
5.4 Walsh Domain Analysis of Full-Wave Controlled Rectifier
145(17)
5.4.1 Single-Phase Full-Wave Controlled Rectifier
146(1)
5.4.2 Representation of the Load Voltage by Walsh Functions
147(4)
5.4.3 Determination of Normalized Average and rms Currents
151(1)
5.4.3.1 Exact Equations for Phase-Controlled Rectifier
152(8)
5.4.4 Computational Algorithm
160(2)
5.5 Conclusion
162(3)
References
163(2)
6 Analysis of Inverter Circuits
165(16)
6.1 Voltage Control of a Single-Phase Inverter
166(9)
6.1.1 Single-Pulse Modulation
168(1)
6.1.1.1 Walsh Function Representation of Single-Pulse Modulation
169(3)
6.1.1.2 Computation of Normalized Average and rms Load Currents for Single--Pulse Modulation
172(3)
6.2 Analysis of an RL Load Fed from a Typical Three-Phase Inverter Line-to-Neutral Voltage
175(4)
6.3 Conclusion
179(2)
References
179(2)
Appendix A Introduction to Linear Algebra 181(10)
Appendix B Selected Matlab® Programs 191(84)
Index 275
Anish Deb obtained his BTech in 1974 (recipient of Calcutta University silver medal), MTech in 1976 (recipient of Calcutta University gold medal and P. N. Ghosh memorial gold medal), and PhD (Tech) in 1990 from the Department of Applied Physics, University of Calcutta, India. In 1978, he joined the Department of Applied Physics, University of Calcutta, as Lecturer in 1983. In 1990, he became Reader (associate professor) in the same department. He has been holding the post of Professor since 1998. His research interest includes automatic control in general and application of "alternative" orthogonal functions in power electronics and systems and control. He has authored one book entitled "Triangular orthogonal functions for the analysis of continuous time systems" and published more than 65 research papers in different national and international journals and conferences.







Suchismita Ghosh

obtained her BTech (2008) from the Calcutta Institute of Engineering and Management, West Bengal University of Technology, India, and MTech (2010) from the Department of Applied Physics, University of Calcutta, India. She is currently an assistant professor in the Department of Electrical Engineering, MCKV Institute of Engineering, West Bengal University of Technology, India. She has taught courses on power electronics, basic electrical engineering, control systems, and electrical machines. Her research area includes automatic control in general and application of "alternative" orthogonal functions in systems and control. She is presently involved in research with Anish Deb and has published five research papers in international journals and national conferences.
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