PS4202 Power System Dynamics Syllabus:
PS4202 Power System Dynamics Syllabus – Anna University PG Syllabus Regulation 2021
COURSE OBJECTIVES:
To impart knowledge on mathematical modeling of a synchronous machine in detail.
To enable the students to develop the transfer function model for excitation and speed governing systems.
To offer an opportunity to innovate newer procedures and better methods for effective design.
To enable the students to model the single and multi-machine power systems with controllers for stability analysis
To provide knowledge on enhancing small signal stability concepts in power system
UNIT I SYNCHRONOUS MACHINE MODELLING
Physical description of a synchronous machine: armature and field structure – direct and quadrature axes- Mathematical Description: Basic equations of a synchronous machine: stator circuit equations, stator self, stator mutual and stator to rotor mutual inductances, dq0 Transformation: flux linkage and voltage equations for stator and rotor in dq0 coordinates, Physical interpretation of dq0 transformation, Per Unit Representations: power invariant form of Park‟s transformation; Equivalent Circuits for direct and quadrature axes, Steady-state Analysis: Voltage, current and flux-linkage phasor relationships, Computation of steady-state values.
UNIT II MODELLING OF EXCITATION AND SPEED GOVERNING SYSTEMS
Elements of an Excitation System: Types of Excitation System; Control and protective functions; Modeling of Excitation system components: Modeling of IEEE type ST1A (1992) excitation model, Turbine and Governing System Modeling: Classical transfer function of a hydraulic turbine (no derivation), Special characteristics of a hydraulic turbine, Electrical analogue of a hydraulic turbine, Governor for Hydraulic Turbine: Requirement for a transient droop, Block diagram of governor with transient droop compensation, Modeling of Single reheat tandem compounded type Steam Turbine.
UNIT III SMALL-SIGNAL STABILITY ANALYSIS WITHOUT CONTROLLERS
Classification of Stability, Concepts of Stability of Dynamic Systems: State-space representation, Eigen properties of the state matrix: Eigen values and eigenvectors for stability, Participation factor, Single-Machine Infinite Bus (SMIB) Configuration: Classical Machine Model stability analysis with numerical example, Effects of Field Circuit Dynamics: Block diagram representation with K-constants; expression for K-constants (no derivation), effect of field flux variation on system stability
UNIT VI SMALL-SIGNAL STABILITY ANALYSIS WITH CONTROLLERS
Effects of Excitation System: Thyristor Excitation System with AVR, Block diagram representation with Exciter and AVR, Effect of AVR on Synchronizing and Damping torque components, Power System Stabilizer: Block diagram representation with AVR and PSS, System state matrix including PSS Illustration of principle of PSS application with numerical example -Small Signal Stability of Multi machine systems: illustration of formation of system state matrix for a two-machine system with classical models for synchronous machines
UNIT V ENHANCEMENT OF SMALL SIGNAL STABILITY
Power System Stabilizer – Stabilizer based on shaft speed signal (delta omega) – Delta P-Omega stabilizer-Frequency-based stabilizers – Digital Stabilizer – Excitation control design – Exciter gain – Phase lead compensation – Stabilizing signal washout and stabilizer gain – Stabilizer limits, Selection of PSS location
TOTAL: 45 PERIODS
COURSE OUTCOMES:
Students will be able to
CO1 Analyze the mathematical modeling and inductance calculations in a synchronous machine.
CO2 Develop the transfer function model for excitation, speed governing and turbine systems.
CO3 Analyze the small signal stability of SMIB power systems.
CO4 Analyze the small signal stability of SMIB and Multi-machine power systems with damping controllers.
CO5 Describe feedback controllers for small signal stability enhancement in power systems.
REFERENCES:
1 Prabha Kundur, “Power System Stability and Control”, Tata McGraw-Hill, 2014.
2 R.Ramanujam,” Power System Dynamics: Analysis and Simulation, PHI Learning Private Limited, Second print, New Delhi, 2013.
3 J.Machowski, Bialek, Bumby, “Power System Dynamics and Stability”, John wiley and sons, 3rd edition, 2020.
4 Vijay Vittal, James D. McCalley, Paul, P.M Anderson and A.A Fouad, “Power System Control and Stability”, Iowa State University Press, Ames, Iowa, 3rd edition, 2019.
5 P. W. Sauer and M. A. Pai,” Power System Dynamics and Stability”, Stipes Publishing Co, 2007.