Economic Operation of Power Systems: Introduction, system constraints,
optimal operation of power systems. Input output, heat rate and incremental rate curves of
thermal generating units. Economic distribution of load between generating units
within a plant. Economic distribution of load between power stations, transmission loss
equation. Introduction to unit commitment and dynamic programming.
Units: II
Power System Stability -I: Power angle equations and power angle curves under
steady state and transient conditions. Rotor dynamics and swing equation (solution of swing
equation not included), synchronizing power coefficient. Introduction to steady state and
dynamic stabilities, steady state stability limit.
Units: III
Power System Stability-II: Introduction to transient stability. Equal area criterion
and its application to transient stability studies under basic disturbances, critical clearing
angle and critical clearing time. Factors affecting stability and methods to improve
stability.
Units: IV
(i) Excitation Systems: Introduction of excitation systems of synchronous
machines, types of excitation systems, Elements of various excitation systems and their control
(functional block diagrams and their brief description)-DC excitation systems, AC excitation
systems, brushless excitation system. (ii) Interconnected Power Systems: Introduction to
isolated and interconnected powers systems. Reserve capacity of power stations, spinning and
maintenance resaves. Advantages and problems of interconnected power systems. Power
systems inter connection in India.
Units: V
(i) Tap Changing transformer, phase angle control and phase shifting transformer.
Series compensation of transmission lines, location and protection of series capacitors,
advantages and problems. (ii) Introduction to power system security. (iii) Introduction to
voltage stability.