JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Prerequisite

Computer Methods in Power Systems

Course objectives:

• To remember the dynamic characteristics of power system equipment,
• To recognize dynamic performance of power systems
• To illustrate the system stability and controls.

Course Outcomes

Upon the completion of the subject, the student will be able to

• Choose the fundamental dynamic behavior and controls of power systems to perform basic stability analysis.
• Comprehend concepts in modeling and simulating the dynamic phenomena of power systems Interpret results of system stability studies
• Analyze theory and practice of modeling main power system components, such as synchronous machines, excitation systems and governors

UNIT - I

Basic Concepts: Power system stability states of operation and system security - system dynamics - problems system model analysis of steady State stability and transient stability - simplified representation of Excitation control.

UNIT - II

Modeling of Synchronous Machine: Synchronous machine - park’s Transformation-analysis of steady state performance per - unit quantities-Equivalent circuits of synchronous machine- determination of parameters of equivalent circuits.

UNIT - III

Excitation System: Excitation system modeling-excitation systems block Diagram - system representation by state equations- Dynamics of a synchronous generator connected to infinite bus - system model Synchronous machine model-stator equations rotor equations - Synchronous machine model with field circuit - one equivalent damper winding on q axis (model 1.1) - calculation of Initial conditions.

UNIT - IV

Analysis of Single Machine System: Small signal analysis with block diagram - Representation Characteristic equation and application of Routh Hurwitz criterion- synchronizing and damping torque analysis-small signal model - State equations.

UNIT - V

Application of Power System Stabilizers: Basic concepts in applying PSS - Control signals - Structure and tuning of PSS - Washout circuit - Dynamic compensator analysis of single machine infinite bus system with and without PSS.

TEXT BOOKS:

• 1. K. R. PADIYAR,” Power system dynamics “- B.S. Publications.
• 2. P.M. Anderson and A. A. Fouad, “Power system control and stability”, IEEE Press

REFERENCE:

• 1. R. Ramanujam, “Power Systems Dynamics”- PHI Publications. M. TECH – I YEAR – II SEM. (EPE/EPS/ PSC&A)