Course Details
Subject {L-T-P / C} : EE6203 : Power System Dynamics { 3-0-0 / 3}
Subject Nature : Theory
Coordinator : Prof. Sanjeeb Mohanty
Syllabus
Module1:
Mathematical Model: Mechanical torque, electrical torque, swing equation, power-angle curve of a synchronous machine, natural frequencies of oscillation, system of one machine with infinite bus, equal area criterion, classical model of multi machine system, shortcomings of classical model.
6 Hours
Module2:
Synchronous machine: park transformation, flux linkage equations, voltage equations, state-space equations, current formulation, per-unit conversion, normalization, torque and power, equivalent circuit, turbine generator dynamic model.
6 Hours
Module3:
Simulation of synchronous machine: steady state equation and phasor diagram, machine connected to infinite bus through transmission line, machine connected to infinite bus with local load at machine terminal, initial conditions for multimachine system, computer simulation of synchronous machines
6 Hours
Module4:
Linear model of synchronous machine: linearization of generator state-space model, linearization of load equation for single machine problem, linearization of flux linkage model, simplified linear model, block diagram, state-space representation of simplified model
6 Hours
Module 5:
Excitation system: simplified view of excitation control, control configuration, voltage regulator, exciter buildup, excitation system response, state-space description of excitation system, effect of excitation system on generator performance, effect of excitation of stability Speed governing: flyball governor, incremental equations of the turbine, speed-droop governor Steam-Turbine Prime Movers: power plant control modes, thermal generations, steam power plant model, steam turbines, control of steam turbine and generator Hydraulic Turbine Prime Movers: different types of hydraulic turbines, hydraulic system equations, hydraulic system transfer function, simplification, block diagram representation
6 Hours
Module 6:
Application of modern optimization methods to power system control problems. Application of Lyapunov function to transient stability problems.
5 Hours
Course Objectives
- Better understand the equations of motion, transient stability, small signal stability when synchronous machine is subjected to disturbance.
- Grasp the fundamentals of load frequency control in a single area system and Automatic Generation Control in a multi area power system.
- Appreciate the dynamics related to the different components of the excitation circuit of a synchronous machine.
- Get an insight into torsional oscillations, torsional resonance for a steam turbine coupled to a Turbo Alternator.
Course Outcomes
CO1: Insight into the small signal behaviour of Single Machine Infinite Bus (SMIB) System using state space model and transfer function approach. <br /> <br />CO2: Better understanding of the synchronizing torque and damping torque component when synchronous machine is subjected to minor and major disturbance. <br /> <br />CO3: Better appreciation of the dynamics related to the different components of the excitation circuit of a synchronous machine. <br /> <br />CO4: Controlling the frequency of a power system with the variation of the load using an isochronous governor and governor with speed droop characteristics. <br /> <br /> <br />CO5: Conceptual understanding of the Area Control Error (ACE) signal under steady state and dynamic conditions for a multi area power system with Automatic Generation Control (AGC). <br /> <br />CO6: Physical insight into the torsional oscillation, torsional resonance occurring for steam turbine coupled to a Turbo Alternator
Essential Reading
- P. Kundur, N. J. Balu and M.G. Lauby, Power System Stability and Control, McGraw Hill Inc., New York, 1994 , It is a good text book
- P. Sauer & M.A.Pai, Power System Dynamics and Stability, , Prentice Hall, 1999. , It is a decent text book
Supplementary Reading
- K. R. Padiyar, Power System Dynamics, Stability and Control, John Wiley, 1999. , Good for supplementary reading
- Paul M. Anderson, A. A. Fouad, Power System Control and Stability, Wiley-IEEE Press 2nd Edition, 2002. , Decent for supplementary reading