Inductances of Distributed Winding - II — Lesson 2

This lesson covers the relationship between the mechanical and electrical angle in a two-pole machine and the concept of flux linkage in the stator winding. The lesson also discusses the concept of leakage flux and its impact on the self-inductance. It further explains the impact of the number of machine poles on the electrical variation. It also covers the concept of a distributed winding in a 3 phase machine and MMF distribution for it. The lesson concludes with the explanation of the self-inductance and flux linkage of a distributed stator winding.

Video Highlights

00:11 - Introduction
02:10 - Discussion on the inductance flux linkage in the stator winding
05:16 - Explanation of the concept of leakage flux in machines
07:54 - Explanation of the concept of a distributed winding in a 3 phase machine
11:53 - Discussion on the MMF distribution with waveform
24:59 - Discussion on the Fourier series of the impulse function waveform
38:21 - Explanation of the flux linkage of an elementary coil
45:49 - Discussion on the flux linkage of the entire phase spread

Key Takeaways

- The self-inductance of a coil is derived from the relationship between the mechanical and electrical angle in a two-pole machine.
- The flux linkage in the stator winding is crucial in determining the self-inductance.
- Leakage flux can impact the self-inductance of a coil, and it occurs at various locations in the machine.
- The number of machine poles can affect the electrical variation, which in turn impacts the self-inductance.
- The self-inductance of a distributed stator winding can be determined by considering the number of turns and the flux linkage.