Modelling of Salient Pole Synchronous Machines - III — Lesson 3

This lesson covers the rotor attached reference frame for the synchronous machine and the concept of the D and Q axis. The lesson also discusses the historical development of machine analysis fields and the application of machine equations for machine control. It further elaborates on the operational impedance matrix, the axis applied voltage, and the quadrature axis synchronous inductance. This lesson also covers steady state analysis of the synchronous machine and mechanical equations. The lesson concludes with the transformation of these equations into the normal ABC reference frame.

Video Highlights

00:12 - Introduction
02:00 - Discussion on the synchronous machine modeling in the synchronous reference frame
10:33 - Explanation of the electromagnetic torque in the synchronous machine
15:38 - Explanation of the machine equation with the inclusion of the damper windings
34:20 - Discussion on the mechanical equations
38:03 - Discussion on the steady state analysis of the synchronous machine
39:35 - Explanation of the transformation of the machine equations from the synchronous reference frame to the ABC reference frame
46:58 - Discussion on the per phase equivalent circuit in the stator reference frame

Key Takeaways

- The synchronous reference frame is also the rotor attached reference frame for the synchronous machine.
- The D and Q axis are crucial in the analysis of synchronous machines.
- The operational impedance matrix simplifies the representation of the D axis applied voltage and the quadrature axis synchronous inductance.
- The transformation of these equations into the normal ABC reference frame allows for a more straightforward analysis of the machine.