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Course

Electronics

Understanding Inductances in Electrical Machines

FREE

4-6 HOURS

NPTEL

 width=This course covers the comprehensive understanding of inductance in electrical machines, with a special focus on machines with a cylindrical rotor, cylindrical stator, and salient pole rotor. It delves into the complexities of determining the self-inductance of a single coil on the stator, considering the intricate air variations and changing flux density waveforms. For instance, the course introduces Blondel's two-reaction theory as a solution to these complexities. It further explores the concept of phase spread and the impact of a distributed stator wind on inductance. The course also discusses the relationship between the mechanical and electrical angle in a two-pole machine, the concept of flux linkage in the stator winding, and the impact of leakage flux on self-inductance. It concludes with the derivation of the expression for mutual inductance between two phases.

This course has been developed by Prof. Krishna Vasudevan from IIT Madras for NPTEL. It is now accessible through Ansys Innovation Space courtesy of the partnership between Ansys and NPTEL, under the CC BY-SA license. For more details, visit https://nptel.ac.in/courses/108106023.
  • Cost:
    FREE
  • Course Duration: 4-6 HOURS
  • Skill Level: Beginner
  • Skills Gained: Inductances in electrical machines, self and mutual inductance, impact of leakage flux

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