Power Electronics Applied to Industrial Systems and Transports, Volume 2
eBook - ePub

Power Electronics Applied to Industrial Systems and Transports, Volume 2

Power Converters and their Control

  1. 336 pages
  2. English
  3. ePUB (mobile friendly)
  4. Available on iOS & Android
eBook - ePub

Power Electronics Applied to Industrial Systems and Transports, Volume 2

Power Converters and their Control

About this book

This book provides a comprehensive overview of power electronic converters (DC / DC, DC / AC, AC / DC and AC / AC) conventionally used in industrial and transportation applications, specifically for the supply of electric machines with variable speed drop off window. From the perspective of design and sizing, this book presents the different functions encountered in a modular way for power electronics.Power Converters and Their Control details less traditional topics such as matrix converters and multilevel converters. This book also features a case study design of an industrial controller, which is a synthesis (except the AC / AC direct conversion) of the study subjects, including sizing associated passive components. - Introducing essential notions in power electronics from both theoretical and technological perspectives - Detailed chapters focusing on power supplies for electrical machinery, including a case study of full dimensioning of an industrial variable-speed drive - Presented from a user's perspective to enable you to apply the theory of power electronics to practical applications

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Yes, you can access Power Electronics Applied to Industrial Systems and Transports, Volume 2 by Nicolas Patin in PDF and/or ePUB format, as well as other popular books in Tecnología e ingeniería & Ingeniería industrial. We have over one million books available in our catalogue for you to explore.
1

DC/DC Converters

Abstract

A direct current (DC) machine consists of two distinct elements:
– an armature containing a coil, located at the rotor;
– a field coil (or magnets fulfilling the same function) at the stator.
The presence of the field coil means that the armature coil operates within a magnetic flux of ψf. When a current ia is supplied to the armature, is enabled electromechanical energy conversion by creating a motor torque of the form:
si11_e
where k is a constant which is characteristic of the machine. Furthermore, we note that the flux ψf is:
– either a function of the current iexc circulating in the field coil, if this exists (more precisely, a linear function for a non-saturated machine: ψf = Kϕ.iexc);
– or a constant ψf = Ψf in the case of an inductor using permanent magnets.
Keywords
Bipolar and unipolar modulation
Current-reversible chopper
Four-quadrant chopper
Free wheel diode
Half-bridge
Insulated gate bipolar transistors (IGBTs)
Step-down and step-up choppers
Voltage-reversible chopper

1.1 DC motors

1.1.1 Electromechanical model

A direct current (DC) machine consists of two distinct elements:
– an armature containing a coil, located at the rotor;
– a field coil (or magnets fulfilling the same function) at the stator.
The presence of the field co...

Table of contents

  1. Cover image
  2. Title page
  3. Table of Contents
  4. Copyright
  5. Preface
  6. 1. DC/DC Converters
  7. 2. DC/AC Converters
  8. 3. AC/DC Converters
  9. 4. AC/AC Converters
  10. 5. Introduction to Multi-level Converters
  11. 6. Case Study – The Variable Speed Drive
  12. Appendix 1: Formulas for Electrical Engineering and Electromagnetism
  13. Appendix 2: Elements of Spectral Analysis
  14. Bibliography
  15. Index