Module Objectives:
By the end of this module, you should be able to:
1. Determine traction motor requirements.
2. Categorize loss generation mechanisms in traction motors.
3. Explain how torque-speed characteristics affect the selection of core material in traction motors and categorize the electrical steel requirements for HEV traction motors.
4. Explain the importance of electrical steel characteristics in traction motors.
5. Recognize the effect of manufacturing process on core losses.
6. Identify design parameters of permanent magnets.
7. Explain the fundamentals of selecting permanent magnet material for traction applications.
8. Identify the operational principles of permanent magnet machines.
9. Clarify the advantages and challenges of permanent magnet traction motors.
10. Identify the operational principles of induction machines.
11. Clarify the advantages and challenges of induction traction motors.
12. Recognize the operational principles, advantages and challenges of switched reluctance motors.
Introduction:
Losses in Electric Machines:
Core Losses:
Losses in Permanent Magnets:
Core Materials:
Electrical Steel Requirements for HEV Traction Motors:
Effect of Manufacturing Process:
Permanent Magnets:
Permanent Magnet Synchronous Machines:
Classification of Permanent Magnet Machines:
Saliency in Permanent Magnet Machines:
Induction Machines:
Induction Machines Part 2:
