Modelling of Salient Pole Synchronous Machines - II — Lesson 2

This lesson covers the modeling of synchronized machines, specifically focusing on the derivation of various expressions for inductances in the salient rotor synchronized machine. It explains how to assemble these equations to form the voltage expressions or the voltage equations for the induction machine. The lesson also discusses the representation of the stator of the synchronized machine and the salient pole rotor. It further elaborates on the equations for the stator and the rotor windings. The lesson concludes with the transformation of these equations to the normal generator convention and the introduction of the concept of damper bars in the rotor.

Video Highlights

00:15 - Introduction
04:36 - Discussion on the operation of large power synchronized machines in the generator mode
06:24 - Explanation of the structure of the rotor pole phase in a salient pole machine and the concept of damper bars and damper cage
19:17 - Discussion on the transformation of the stator variables from the stator attached 3 phase reference to the sync reference frame
34:07 - Explanation of the generated electromagnetic torque and the concept of saliency torque
41:56 - Discussion on the transformation of the rotor variables to the stator number of turns and mutual inductance

Key Takeaways

- Synchronized machines are modeled using various expressions for inductances in the salient rotor synchronized machine.
- These equations are assembled to form the voltage expressions or the voltage equations for the induction machine.
- The stator of the synchronized machine and the salient pole rotor are represented symbolically.
- The equations for the stator and the rotor windings are derived and explained in detail.
- These equations are then transformed to the normal generator convention for further analysis.