Power System Dynamics and Control — Summer 2025

Describe the significance of Park’s transformation.

What is the main purpose of the power system dynamics study?

Draw general functional block diagram of an excitation control system and explain the function of each block.

Define power system stabilizer.

Distinguish between steady state and transient stability of power system network

Explain general model for speed governor for steam turbine using block diagram.

Derive the swing equation of a single generator connected to infinite bus in per unit form.

State basic assumptions made in steady state analysis of an alternator

Draw the systematic diagram for 3phase synchronous machine.

Briefly describe the phenomenon of Sub-Synchronous Resonance. Describe any two techniques for SSR mitigation.

Describe the classification of load models used in power system.

Express in detail Transient Analysis of a Synchronous Machine

Describe in detail transmission line modeling by D-Qtransformation using α-β variables.

Write the preference of using per unit system for modeling of synchronous machine

Briefly explain the procedure of small signal analysis

Define the Classification of stability and Explain with neat diagrams about voltage stability

What is the reason for considering load as a constant impedance model?

Express the stator voltage equation in dq-axis.

Briefly explain Equivalent Circuits of Synchronous Machine with the determination of Parameters of Equivalent Circuits

Mention the common assumptions in transient analysis of a multi-machine system.

Draw the control characteristic and briefly explain the Static Var Compensator.

Briefly explain: Dynamic Braking.1

Demonstrate the application of Model 1.1.

Describe the steps for calculating initial conditions of a synchronous generator.

Illustrate the equal area criterion for single machine infinite bus system with the help of power angle curves. State the assumptions used in it.