## EE8003 - POWER SYSTEM STABILITY (Syllabus) 2017-regulation Anna University

EE8003

POWER SYSTEM STABILITY

LTPC

3003

OBJECTIVES:
• To understand the fundamental concepts of stability of power systems and its classification.
• To expose the students to dynamic behaviour of the power system for small and large disturbances.
• To understand and enhance the stability of power systems.

UNIT I

INTRODUCTION TO STABILITY

9

Fundamental concepts - Stability and energy of a system - Power System Stability: Definition, Causes, Nature and Effects of disturbances, Classification of stability, Modelling of electrical components - Basic assumptions made in stability studies- Modelling of Synchronous machine for stability studies(classical model) - Rotor dynamics and the swing equation.

UNIT II

SMALL-SIGNAL STABILITY

9

Basic concepts and definitions – State space representation, Physical Interpretation of small–signal stability, Eigen properties of the state matrix: Eigenvalues and eigenvectors, modal matrices, eigenvalue and stability, mode shape and participation factor. Small– signal stability analysis of a Single-Machine Infinite Bus (SMIB) Configuration with numerical example.

UNIT III

TRANSIENT STABILITY

9

Review of numerical integration methods: modified Euler and Fourth Order Runge-Kutta methods, Numerical stability,. Interfacing of Synchronous machine (classical machine) model to the transient stability algorithm (TSA) with partitioned – explicit approaches- Application of TSA to SMIB system.

UNIT IV

VOLTAGE STABILITY

9

Factors affecting voltage stability- Classification of Voltage stability-Transmission system characteristics- Generator characteristics- Load characteristics- Characteristics of reactive power compensating Devices- Voltage collapse.

UNIT V

ENHANCEMENT OF SMALL-SIGNAL STABILITY AND TRANSIENT STABILITY

9

Power System Stabilizer – Principle behind transient stability enhancement methods: high-speed fault clearing, regulated shunt compensation, dynamic braking, reactor switching, independent pole-operation of circuit-breakers, single-pole switching, fast- valving, high-speed excitation systems.

TOTAL: 45 PERIODS

OUTCOMES:
• Learners will attain knowledge about the stability of power system
• Learners will have knowledge on small-signal stability, transient stability and voltage stability.
• Learners will be able to understand the dynamic behaviour of synchronous generator for different disturbances.
• Learners will be able to understand the various methods to enhance the stability of a power system.

TEXT BOOKS:
1. Power system stability and control ,P. Kundur ; edited by Neal J. Balu, Mark G. Lauby, McGraw-Hill, 1994.
2. R.Ramnujam,” Power System Dynamics Analysis and Simulation, PHI Learning Private Limited, New Delhi, 2009
3. T.V. Cutsem and C.Vournas, “Voltage Stability of Electric Power Systems”, Kluwer publishers, 1998.

REFERENCES:
1. Peter W., Saucer, Pai M.A., “Power System Dynamics and Stability, Pearson Education (Singapore), 9th Edition, 2007.
2. EW. Kimbark., “Power System Stability”, John Wiley & Sons Limited, New Jersey, 2013.
3. SB. Crary., “Power System Stability”, John Wiley & Sons Limited, New Jersey, 1955.
4. K.N. Shubhanga,“Power System Analysis” Pearson, 2017.
5. Power systems dynamics: Stability and control / K.R. Padiyar, BS Publications, 2008
6. Power system control and Stability P.M. Anderson, A.A. Foud, Iowa State University Press, 1977.