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Summary of Material on Electric Drives Covered on July 24, 2019

This material covers dynamic control strategies, encoder-less operation, electric motor drives, wind energy utilization, hybrid electric vehicles, AC machines, rotor circuits, torque calculation, operating principles, space vector representation, induction motor characteristics, and speed control. Reference book "First Course on Power Electronics" by Ned Mohan further elaborates on power processing units. Explore the world of electric drives with detailed insights and practical applications.

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Summary of Material on Electric Drives Covered on July 24, 2019

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  1. Summary of Material on Electric Drives Covered on July 24, 2019

  2. Seamless discussion of dynamic control and encoder-less operation

  3. What is an Electric-Motor Drive? • Harnessing of Wind Energy • Hybrid Electric Vehicles

  4. Power Processing Unit Reference Book: First Course on Power Electronics by Ned Mohan, published by MNPERE (See www.MNPERE.comfor details).

  5. Introduction to AC Machines • Primary AC motor drives • Induction motors • Permanent Magnet Brushless (Synchronous Motors)

  6. Sinusoidally-distributed Stator Windings

  7. Space Vector to Represent Sinusoidal Distributions At time ‘t’

  8. Space Vectors Representation of Combined Phase Currents and Voltages

  9. Physical interpretation of

  10. Balanced Sinusoidal Steady-State Excitation (Rotor Open-Circuited)

  11. Relation Between Space Vectors and Phasors

  12. Permanent-Magnet AC (PMAC) Drives

  13. Structure of Permanent-Magnet Synchronous Machines

  14. Principle of Operation

  15. Torque Calculation

  16. Similarity Between DC Motor and Brushless DC Motor

  17. Induction Motors:Balanced, Sinusoidal Steady State Operation

  18. Structure

  19. Electrically Open-circuited Rotor

  20. Short-circuiting the Rotor(Rs, Ls,leakage = 0) • Transformer Analogy

  21. Induced Voltages in Rotor

  22. Induced Currents in Rotor

  23. Rotor MMF

  24. Slip frequency (fslip) in the rotor circuit

  25. Electromagnetic Torque Production

  26. Torque – Speed Characteristics

  27. Generator Mode

  28. Rotor Leakage Inductance

  29. Per-Phase Equivalent Circuit

  30. Stator Winding Resistance and Leakage Inductance

  31. Characteristics at Rated Voltage and Rated Frequency

  32. Motor Currents, Efficiency, Power Factor As a Function of Load

  33. Induction Motor Speed Control

  34. Operating with

  35. Maintaining

  36. Adjusting Voltage

  37. Capability Below and Above Rated Speed

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