PEE206: POWER SYSTEM OPERATION & CONTROL

L	T	P	Cr
3	1	2	4.5

Course Objectives:

1.      To impart learning about the power system controls namely load-frequency and AVR control for both single-machine infinite bus system and multi-machine systems.

2.      To learn optimal system operation through optimal generation dispatch, unit commitment, hydro-thermal scheduling and pumped storage plant scheduling and their implementation through various classical methods.

Load Frequency Control: Introduction, Modelling of ALFC control loop, biased control, concept of multi-area control, tie line bias control, Mathematical models of various turbine-governor systems, stability analysis of single area and multi area systems, transient stability analysis of multi-machine system

 

AVR Control: Mathematical model of AVR control loop, modeling of various excitation systems, stability analysis of AVR systems, Lag-Lead compensation, cross coupling between AVR and ALFC control loops. Concept of AVR in multi-machine system, concept of reactive power and voltage dependency, voltage stability analysis of single machine infinite bus system.

 

Optimal generation dispatch: Input Output characteristics of a power generation units, Optimum generation allocation of thermal units with and without losses, Derivation of transmission loss formula, Reactive power dispatch, Environmental economic dispatch, optimal dispatch of hydro units

 

Hydro-Thermal Coordination: Advantages of coordination, Optimal scheduling of hydrothermal system, short term, long term and stochastic hydro-thermal scheduling, Combined working of Runoff river plant with steam plant, Multi-reservoir plant, Pumped storage hydro plants.

 

Unit Commitment: Optimal Unit commitment, Solution to unit commitment by dynamic programming, effect of start-up and shut down time/cost, Optimal unit commitment with security.

 

Laboratory Work:

Implementation of Load frequency control and AVR control in single area system, Optimal generation dispatch, Hydrothermal scheduling, Unit commitment.

 

Course Learning Outcomes (CLO):

On the completion of the course, the student will be able:

1.      To understand the power system controls namely load-frequency and AVR control for both single-machine infinite bus system and multi-machine systems,

2.      To formulate problems of the optimal system operation through optimal generation dispatch, unit commitment, hydro-thermal scheduling and pumped storage plant scheduling

3.      To implement the optimal power system operation problems through various classical methods.

4.      To analyse the results of optimal dispatch and scheduling

Recommended Books:

1.        Wood, A.J. and Wollenberg, B.F., Power Generation, Operation and Control, John Wiley and Sons (2003).

2.        Kothari, D.P., Dhillon J.S. Power system Optimisation, PHI (2011)

3.        Elgerd O.I., Electric Energy System Theory- An Introduction, McGraw-Hill, (1996)

4.        P. Kundur, “Power System Stability & Control” Tata McGraw Hill, (2007)

5.        M.E. El-Hawary, G.S. Christensen, “Optimal Economic Operation of Electric Power Systems”, Academic Press (1979)