Modern Permanent Magnet Electric Machines
eBook - ePub

Modern Permanent Magnet Electric Machines

Theory and Control

  1. 312 pages
  2. English
  3. ePUB (mobile friendly)
  4. Available on iOS & Android
eBook - ePub

Modern Permanent Magnet Electric Machines

Theory and Control

About this book

The late 1980s saw the beginning of the PM brushless machine era, with the invention of high-energy density permanent magnets (PM) and the development of power electronics. Although induction motors are now the most popular electric motors, the impact of PM brushless machines on electromechanical drives is significant. Today, PM machines come second to induction machines. Replacement of electromagnetic field excitation systems by PMs brings the following benefits:

  • No electrical energy is absorbed by the field excitation system and thus there are no excitation losses, causing substantial increase in efficiency

  • Higher power density (kW/kg) and/or torque density (Nm/kg) than electromagnetic excitation

  • Better dynamic performance than motors with electromagnetic excitation (higher magnetic flux density in the air gap)

  • Simplification of construction and maintenance

  • Less expensive for some types of machines

Modern Permanent Magnet Electric Machines: Theory and Control serves as a textbook for undergraduate power engineering students who want to supplement and expand their knowledge in the fundamentals of magnetism, soft magnetic materials, permanent magnets (PMs), calculation of magnetic circuits with PMs, modern PM brushed DC machines and their controls, modern PM brushless DC motors and drive control, and modern PM generators. The book can help students learn more about electrical machines and can serve as a prescribed text for teaching elective undergraduate courses such as modern permanent magnet electrical machines. Since the book is written in a simple scientific language and without redundant mathematics, it can also be used by practicing engineers and managers employed in electrical machinery or electromagnetic device industries.

Frequently asked questions

Yes, you can cancel anytime from the Subscription tab in your account settings on the Perlego website. Your subscription will stay active until the end of your current billing period. Learn how to cancel your subscription.
No, books cannot be downloaded as external files, such as PDFs, for use outside of Perlego. However, you can download books within the Perlego app for offline reading on mobile or tablet. Learn more here.
Perlego offers two plans: Essential and Complete
  • Essential is ideal for learners and professionals who enjoy exploring a wide range of subjects. Access the Essential Library with 800,000+ trusted titles and best-sellers across business, personal growth, and the humanities. Includes unlimited reading time and Standard Read Aloud voice.
  • Complete: Perfect for advanced learners and researchers needing full, unrestricted access. Unlock 1.4M+ books across hundreds of subjects, including academic and specialized titles. The Complete Plan also includes advanced features like Premium Read Aloud and Research Assistant.
Both plans are available with monthly, semester, or annual billing cycles.
We are an online textbook subscription service, where you can get access to an entire online library for less than the price of a single book per month. With over 1 million books across 1000+ topics, we’ve got you covered! Learn more here.
Look out for the read-aloud symbol on your next book to see if you can listen to it. The read-aloud tool reads text aloud for you, highlighting the text as it is being read. You can pause it, speed it up and slow it down. Learn more here.
Yes! You can use the Perlego app on both iOS or Android devices to read anytime, anywhere — even offline. Perfect for commutes or when you’re on the go.
Please note we cannot support devices running on iOS 13 and Android 7 or earlier. Learn more about using the app.
Yes, you can access Modern Permanent Magnet Electric Machines by Jacek F. Gieras,Jian-Xin Shen in PDF and/or ePUB format, as well as other popular books in Technology & Engineering & Electrical Engineering & Telecommunications. We have over one million books available in our catalogue for you to explore.

Table of contents

  1. Cover Page
  2. Half-Title Page
  3. Title Page
  4. Copyright Page
  5. Contents
  6. Preface
  7. 1 Fundamentals of Magnetism
  8. 2 Soft Magnetic Materials
  9. 3 Permanent Magnets
  10. 4 Calculation of Magnetic Circuits With PMs
  11. 5 PM Brush DC Machines and Their Control
  12. 6 PM Brushless DC Motors and Drive Control
  13. 7 PM Synchronous Motors and Drive Control
  14. 8 Axial and Transverse Flux Motors
  15. 9 High-Speed PM Brushless Machines
  16. Appendix A Conversion of units
  17. Appendix B Lenz's law
  18. Appendix C Right-handed cork-screw rule
  19. Appendix D The right-hand grip rule
  20. Appendix E Left-hand and right-hand rules
  21. Symbols and Abbreviations
  22. References
  23. Index