Decode of Power System Operation & Control 403141Download
Course Objectives:
This course aims to:
1. Study the different types of angle, voltage and frequency stability of the power system and methods
to improve the stability of the power system.
2. Impart knowledge about various advanced controllers such as FACTs controllers with its evolution,
principle of operation, circuit diagram and applications.
3. Introduce frequency control in a single area and two area system.
4. Understand the formulation of unit commitment and economic load dispatch.
5. Illustrate various ways of interchange of power between interconnected utilities.
Course Outcomes:
At the end of this course, students will be able to:
CO1: Summarize angle, voltage and frequency stability in the power system control (UN).
CO2: Illustrate various ways of interchange of power between interconnected utilities (AP).
CO3: Analyze stability and optimal load dispatch using different techniques (AN).
CO4: Select appropriate FACTS devices for stable operation of the system (EV).
CO5: Evaluate the stability of the system and suggest the methods to improve it (EV).
Unit 01 Power System Stability (Angle Control):
Introduction to stability, dynamics of synchronous machine, swing equation, power
angle equation and curve, types of power system stability (concepts of steady state,
transient, dynamic stability), equal area criterion, applications of equal area criterion
(sudden change in mechanical input, effect of clearing time on stability, critical
clearing angle, short circuit at one end of line, short circuit away from line ends and
reclosure ), methods to improve steady state and transient stability, numerical based
on equal area criteria.
08 hrs
Unit 02 Reactive Power Control:
The necessity of reactive power control, production and absorption of reactive power,
reactive power requirements for power factor control and voltage regulation and the
loading capability curve of a synchronous generator, types of FACTS controller.
Series compensation: reactor and capacitor, TCSC, SSSC.
Shunt compensation: reactor and capacitor, STATCOM, FC-TCR.
Series and shunt compensation: UPFC.
(FACTS devices: working principle, circuit diagram, VI characteristics, applications)
08 hrs
Unit 03 Automatic Generation Control (Frequency Control):
Introduction to the concept of AGC; complete block diagram representation of loadfrequency control of an isolated power system; steady state and dynamic response;
08 hrs
BE Electrical (2019 Course) 4
control area concept; two-area load-frequency control; Schematic and block diagram
of the alternator voltage regulator scheme.
Unit 04 Economic Load Dispatch and Unit Commitment (Cost Control):
● Part A: Economic load dispatch: Introduction, revision of cost curve,
incremental cost curve of thermal, method of Lagrange multiplier, exact
coordinate equation (penalty factor), economic scheduling of thermal plant
considering effect of transmission losses using Bmn coefficient.
(Numerical on method of Lagrange multiplier, penalty factor, Bmn coefficient)
● Part B: Unit commitment: Concept of unit commitment, constraints in unit
commitment – spinning reserve, thermal and hydro constraints, methods of unit
commitment – priority list and dynamic programming, Numerical on priority
list and dynamic programming method.
08 hrs
Unit 05 Energy Control: Interchange of power between interconnected utilities (numerical),
economic interchange evaluation, interchange evaluation with unit commitment, types
of interchange, capacity and diversity interchange, energy banking, emergency power
interchange, inadvertent power exchange, power pools.
06 hrs
Unit 06 Voltage Stability:
Basic concepts related to voltage stability: transmission system characteristics (PV
curve), generator characteristics (QV curve), and load characteristics.
Voltage collapse, classification of voltage stability, static and dynamic stability,
analysis techniques for dynamic voltage stability, voltage stability indexing.
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