Power System Operation & Control

Objective & Out come of learning.

To impart knowledge about the structure and control aspect of the power system operation. This includes SCADA, optimal economic operations, AGC control, excitation and reactive power control, system security and the elements of FACTS control. At the end of the course a student will be able to do operations at a Load dispatch centre or planning such operations.

1. Introduction:

Large scale power systems-their interconnections and operation ; load dispatch centre and control centre, introduction to centralized and decentralized controls ; various operational stages of power system ; power system security.

2. Economic Operation:

Problem of unit commitment, system constraints, incremental fuel cost, economic load scheduling with and without transmission losses, penalty factor, loss coefficient, incremental transmission loss ; optimal power flow problem ; optimal operation of hydro-thermal system.

3. Load Frequency Control :

Concept of load frequency control, speed governing systems and its representation, automatic control, modeling of single area and multiarea systems, tie line control, supervisory control ; automatic generation control including excitation system; optimum load frequency controller, PID controller.

4. Voltage Reactive Power Control Concept of voltage control, methods of voltage control, reactive power injection, control by tap changing transformer, series compensation, static VAR compensation, Excitation system & stabilizer, rate feedback controller, PIDcontroller.

5. State Estimation:

State estimation, linear and nonlinear models, detection and identification of measurement errors.

6. Flexible AC Transmission System :

Concept and objectives, basic FACTS controllers: