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Power-Switching Converters
Medium and High Power
by Dorin O. Neacsu

Power-Switching Converters examines the characteristics and operating principles of these systems in terms of how to increase their efficiency and produce them at lower cost.

Features:

  • Provides a thorough examination of high- and medium-power conversion technologies
  • Considers industrial directions and demands on the modern power electronics engineer
  • Examines the problems and various solutions specific to a variety of applications
  • Explores the theory underlying device behavior along with the practical aspects

Contents

Introduction to Medium and High Power Switching Converters

  • Market of Medium- and High-Power Converters
  • Adjustable Speed Drives
  • Grid Interfaces or Distributed Generation
  • Multi-Converter Power Electronic Systems

High-Power Semiconductor Devices

  • A View of the Power Semiconductor Market
  • Power MOSFETs
  • Insular Gate Bipolar Transistors
  • Gate Turn-Off Thyristors
  • Advanced Power Devices Problems

Basic Three-Phase Inverters

  • High-Power Devices Operated as a Simple Switch
  • Inverter Leg with Inductive Load Operation
  • What is a PWM Algorithm?
  • Basic Three-Phase Voltage Source Inverter: Operation and Functions
  • Performance Indices: Definitions and Terms Used in Different Countries
  • Direct Calculation of Harmonic Spectrum from Inverter Waveforms
  • Preprogrammed PWM for Three-Phase Inverters
  • Modeling a Three-Phase Inverter with Switching Functions
  • Braking Leg in Power Converters for Motor Drives
  • DC Bus Capacitor within an AC/DC/AC Power Converter

Carrier-Based Pulse Width Modulation and Operation Limits

  • Carrier-Based Pulse Width Modulation Algorithms: Historical Importance
  • Carrier-Based PWM Algorithms with Improved Reference
  • PWM Used within Volt/Hertz Drives: Choice of Number of Pulses Based on the Desired Current Harmonic Factor
  • Implementation of Harmonic Reduction with Carrier PWM
  • Limits of Operation: Minimum Pulse-Width
  • Limits of Operation

Vectorial Pulse Width Modulation for Basic Three-Phase Inverters

  • Review of Space Vector Theory
  • Vectorial Analysis of the Three-Phase Inverter
  • SVM Theory: Derivation of the Time Intervals Associated to the Active and Zero States by Averaging
  • Adaptive SVM: DC Ripple Compensation
  • Link to Vector Control: Different Forms and Expressions of Time Intervals Equations in the (d,q) Coordinate System
  • Definition of the Switching Reference Function
  • Definition of the Switching Sequence
  • Comparison between Different Vectorial PWM
  • Overmodulation for SVM
  • Volt-Per-Hertz Control of PWM Inverters

Practical Aspects in Building Three-Phase Power Converters

  • Selection of the Power Devices in a Three-Phase Inverter
  • Protection
  • System Protection Management
  • Reduction of Common-Mode EMI through Inverter Techniques
  • Typical Building Structures of the Conventional Inverter Depending on the Power Level
  • Thermal Management

Implentation of Pulse Width Modulation Algorithms

  • Analog Pulse Width Modulation Controllers
  • Mixed-Mode Motor Controller ICs
  • Digital Structures with Counters: FPGA Implementation
  • Markets for General-Purpose and Dedicated Digital Processors
  • Software Implementation in Low-Cost Microcontrollers
  • Microcontrollers with Power Converter Interfaces
  • Motor Control Co-Processors
  • Using the Event Manager within Texas Instruments' DSPs

Practical Aspects in the Implementing Closed-Loop Current Control

  • Role and Schematics
  • Current Measurement: Synchronization with Pulse Width Modulation
  • Current Sampling Rate: Oversampling
  • Current Control in (a,b,c) Coordinates
  • Current Transforms (3->2): Software Calculation of Transforms
  • Current Control in (D,Q) Models: PI Calibration
  • Antiwind-Up Protection: Output Limitation and Range Definition

Resonant Three-Phase Converters

  • Reducing Switching Losses Through Resonance Vs. Advanced Pulse-Width Multiple Devices
  • Do We Still Get Advantages from Resonant High-Power Converters?
  • Zero Voltage Transition of IGBT Devices
  • Zero Current Transition of IGBT Devices
  • Possible Topologies of Quasi-Resonant Converters
  • Special PWM for Three-Phase Resonant Converters

Component-Minimized Three-Phase Power Converters

  • Solutions for Reduction of Number of Components
  • Generalized Vector Transform
  • Vectorial Analysis of the B4 Inverter
  • Definition of PWM Algorithms for the B4 Inverter
  • Influence of DC Voltage Variations and Method for their Compensation
  • Two-Leg Converter used in Feeding a Two-Phase IM

AC/DC Grid Interface on the Three-Phase Voltage Source Converter

  • Particularities, Control Objectives, and Active Power Control
  • PWM in the Control System
  • Closed Loop Current Control Methods
  • Grid Synchronization

Parallel and Interleaved Power Converters

  • Comparison between Converters Built of High-Power Devices and Solutions Based on Multiple Parallel Lower Power Devices
  • Hardware Constraints in Paralleling IGBTs
  • Gate Control Designs for Equal Current Sharing
  • Advantages and Disadvantages of Parallel Devices
  • Interleaved Operation of Power Converters
  • Circulating Currents
  • Selection of the PWM Algorithm
  • System Controller

Index

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Power-Switching Converters
Medium and High Power
by Dorin O. Neacsu

2006 384 pages $148.95 + shipping
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