Inductances in Constant Air gap Machines — Lesson 1

This lesson covers the importance of inductance, the significance of the magnetic field in electrical machines and how it impacts the interaction between the electrical and mechanical sides. It further discusses the derivation of equivalent electrical networks, the role of resistance, and the representation of the magnetic field in the electrical network. The lesson also covers the expressions for inductances in the case of different varieties of machines focusing on constant air gap machine.

Video Highlights

00:11 - Introduction
02:30 - Discussion on the importance of inductances in deriving the equivalent electrical network
07:13 - Discussion on the energy-based approach used for magnetically non-linear systems
09:01 - Introduction to the structure of rotational electrical machines
11:32 - Explanation of how to find out the self-inductance of a coil in a cylindrical stator and a cylindrical rotor
28:07 - Discussion on how to find out the mutual inductance between the stator and the rotor
40:46 - Explanation of the different varieties of machines and how to derive expressions for self-inductance and mutual inductance

Key Takeaways

- Inductance plays a significant role in determining the nature of interaction between the electrical and mechanical side of a machine.
- The magnetic field in electrical machines is essential as it impacts the interaction between the electrical and mechanical sides.
- Equivalent electrical networks can be derived to understand the behavior of electrical machines.
- Resistance, inductances and the representation of the magnetic field in the electrical network are important aspects to consider in the analysis of electrical machines.