Elements of Power Electronics
Sorozatcím: The Oxford Series in Electrical and Computer Engineering;
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A termék adatai:
- Kiadó OUP USA
- Megjelenés dátuma 1997. november 27.
- ISBN 9780195117011
- Kötéstípus Keménykötés
- Terjedelem784 oldal
- Méret 243x197x40 mm
- Súly 1489 g
- Nyelv angol
- Illusztrációk halftones, numerous line drawings, tables 0
Kategóriák
Rövid leírás:
Power electronics is an enabling technology for almost all electrical applications. The field is growing rapidly because electrical devices need electronic circuits to process their energy. Elements of Power Electronic, the first book to discuss this subject in a conceptual framework, provides comprehensive coverage of power electronics at a level suitable for novices in the field. It aims to establish a fundamental engineering basis for power electronics analysis, design, and implementation. More than 160 examples and 350 chapter problems support the presented concepts. An extensive World Wide Web site http://power.ece.uiuc.edu/krein_text includes additional examples, laboratory materials, and author contact.
TöbbHosszú leírás:
Power electronics is an enabling technology for almost all electrical applications. The field is growing rapidly because electrical devices need electronic circuits to process their energy. Elements of Power Electronic, the first book to discuss this subject in a conceptual framework, provides comprehensive coverage of power electronics at a level suitable for novices in the field. It aims to establish a fundamental engineering basis for power electronics analysis, design, and implementation. More than 160 examples and 350 chapter problems support the presented concepts. An extensive World Wide Web site http://power.ece.uiuc.edu/krein_text includes additional examples, laboratory materials, and author contact.
TöbbTartalomjegyzék:
Background
The energy basis of electrical engineering
What is Power Electronics?
The need for electrical conversion
History
Goals and methods of electrical conversion
Recap
Problems
References
Organizaing and Analyzing Switches
Introduction
the switch matrix
the reality of Kirchoff's Voltage and Current Laws
The switch state matrix and switching functions
Overview of switching devices
Analyzing diode switch circuits
The significance of Fourier analysis
Review of Fourier Series
Power and average power in Fourier Series
Fourier Series representation of switching functions
Summary and recap
Problems
References
Converter Concepts
Introduction
Source conversion
Distortion
Regulation
Equivalent sources
Introduction to power filtering
Power filter examples
Power factor
Recap
Problems
References
DC-DC Converters
Introduction
Why not voltage dividers?
Linear methods and direct dc-dc converters
Linear regulators
The buck converter
The boost converter
Indirect dc-dc converters
The buck-boost converter
The boos-buck converter
The flyback converter
Other indirect converter
Forward converters
Basic transformer operation
General considerations in forward converters
Catch-winding forward converters
Ac link forward convecters
Boost-derived forward converters
Bidirectional converters
Dc-dc converter design examples
Recap
Problems
Reference
Diode-Capacitor Circuits and Rectifiers
Introduction
Rectifier overview
The classical rectifier - operation and analysis
The classical rectifier - regulation
Inductive filtering
Charge pumps
Ac-dc switching power converters
Introduction
Controlled bridge and midpoint rectifiers
The complementary midpoint rectifier
The multi-input bridge rectifier
Effects of line inductance
Recap
Problems
References
Inverters
Introduction
Inverter considerations
Voltage-sourced inverter control
Pulse-width modulation
Introduction
Creating PWM waveforms
Drawbacks of PWM
Multi-level PWM
Inverter input current under PWM
Pulse-width modulated rectifiers
Current-source inverters
A short introduction to converters for ac drives
Inverter design examples
Recap
Problems
References
Ac-Ac Converters
Introduction
Frequency matching conditions
Direct-switching frequency changers
Slow-switching frequency changers
The choice fswitch = fin + fout
Unifying the direct switching methods
The cycloconverter
Other nonlinear phase modulation methods
PWM ac-ac conversion
Dc link converters
Ac regulators
Integral cycle control
Recap
Problems
References
Introduction to Resonance in Converters
Introduction
Review of resonance
Characteristic equations
Step function excitation
Phasor analysis of series-resonant filters
Parallel resonance
Soft-switching techniques -introduction
Soft-switching principles
Basic configurations
Parallel capacitor as a dc-dc soft switching element
Soft switching in dc-dc converters
Description of quasi-resonance
ZCS transistor action
ZVS transistor action
Resonance used for control - forward convecters
Recap
Problems
References
Discontinuous Modes
Introduction
Dc-dc converters acting in discontinuous mode
The nature of discontinuous mode
Discontinuous mode relationships for dc-dc converters
Critical inductance
Critical capacitance
Rectifiers and other converters in discontinuous mode
Rectifiers
Ac regulators revisited
Recap
Problems
References
Real Sources and Loads
Introduction
Real loads
Wire inductance
Critical values and examples
Real sources and interfaces for them
Impedance behavior of sources
Dc source interfaces
Interfaces for ac sources
Recap
Problems
References
Capacitors and Resistors
Introduction
Capacitors - types and equivalent circuits
Major types
Equivalent circuit
Impedance behavior
Simple dielectric types and materials
Electrolytics
Double-layer capacitors
Effects of ESR
Wire resistance
Resistors
Recap
Problems
References
Magnetics concepts for power electronics
Introduction
Maxwell's equations
Materials and properties
Magnetic circuits
The circuit analogy
Inductance
Ideal and real transformers
The hysteresis loop and losses
Saturation as a design constraint
Saturation limits
General design considerations
Design examples
Core material and geometry
Design checks and capacity
Losses
Recap
Problems
References
Power Semi-Conductors in Converters
Intoduction
Switching device states
Static models
Switch energy losses and examples
General analysis of losses
Losses during commutation
Examples
Simple heat transfer models for power semiconductors
The PN Junction as a Power Device
PN junction diodes and alternatives
The thyristor family
Bipolar power transistors
field-effect transistors
Insulated gate bipolar transistors
Snubbers
Introduction
Lossy turn-off snubbers
Turn-on snubbers
Combined snubbers
Lossless snubbers
Dc-dc converter design example
Recap
Problems
References
Interfacing With Power Semiconductors
Introduction
Gate drives
Overview
Voltage-controlled gates
Current-controlled gates
Pulsed gate drives
Other thyristors
Isolation
P-channel applicatins and shoot through
Sensors for power electronic switches
Resistive sensing
Integrating sensing functions with the gate drive
Non-electrical sensing
Recap
Problems
References
Overview of Feedback Control for Converters
Introduction
The regulation and control problem
Introduction
Defining the regulation problem
The control problem
Review of feedsback control principles
Open loop and closed loop control
Block diagrams
System gain
Transient response
Stability
Converter models for feedback
Basic converterdynamics
Fast switching
Piecewise-linear models
Discrete-time models
Voltage-mode and current-mode control for dc-dc converters
Votage mode control
Current mode control
Large-signal issues in voltage-mode and current-mode control
Comparator-based controls for rectifier systems
Proportional and proportional-integral control applications
Recap
Problems
References
Approximate Methods for Control Design
Introduction
Averaging methods and models
Formulation of averaged models
Averaged circuit models
Small-signal analysis and linearization
The need for small-signal models
Obtaining models
Generalizing the process
Control and control design based on linearization
Transfer functions
Control design C Introduction
Compensation and filtering
Compensated feedback examples
Challenges for control design
Recap
Problems
References
Boundary Control
Introduction
Hysteresis control
Definition and basic behavior
Hysteresis control in dc-dc converters
Power factor corrector
Inverters
Design approaches
General boundary control
Behavior near a boundary
Possible behavior
Choosing a boundary
Other classes of boundaries
Recap
Problems
References
Trigonometric identities
Unit systems
Computer analysis of problems
Mathematica listings
MathCad listings
SPICE listings
Reference Materials
Fourier series of certain waveforms
Three-Phase Graph Paper
