Download Power System

EE119 Power System –II
L-T-P-Cr: 3 - 1 -0-4
Objective- To learn operation of power plant, economy of power system
Pre-requisite-Power System-1
Outcome: Student will be able to understand process of power generation, power flow, behaviour of
power system under different fault condition and stability of power system
Syllabus:
Unit 1. Power Plants: Hydro power Station: Site selection, Layout, Calculation of available Power,
Classification, Salient features, Pumped hydro plants.
Thermal Power Station: Site selection, layout, calculation of coal requirements, cooling water/ tower,
efficiency, co-ordination of hydro and thermal power stations. Nuclear power plant 8 Hours
Unit 2. Economy of Power System: Load Curves, Load duration Curves, Diversity Factor, Base and Peak
Load Stations, Cost allocation of Power station – Fixed cost, Operating Cost, Two Par Tariff and
Evaluation. 4 Hours
Unit 3. Load Flow Analysis: Different types of buses, Power flow equation, Classification buses,
Objective of load flow, problem formulation, Formation Y-bus matrix, Calculation of voltage by Gauss
and Gauss-Siedel Method, Covergence problem, Flow chart of load flow analysis for all kinds of buses. 8
Hours
Unit 4. Symmetrical three phase faults on synchronous machines: Short Circuit current and reactance
of Synchronous machines, Internal Voltage of Loaded Machines under transient conditions. 4 Hours
Unit 5. Symmetrical Components: Synthesis of unsymmetrical phases from their symmetrical
components, operators. The Symmetrical components of unsymmetrical phase, phase shift in
transformer bank, power in terms of symmetrical components; unsymmetrical series impedances;
Sequence impedances and sequence networks; sequence networks of unbalanced generators; Sequence
impedance of circuit elements positive and negative sequence networks; Zero sequence network. 6
Hours
Unit 6. Unsymmetrical Faults; Single line to ground fault, line to line fault, double line to ground fault on
unloaded generator and power systems, Interpretation of inter guidance sequence networks. 6 Hours
Unit 7. Power System Stability: Steady State power limit of cylindrical rotor and salient pole machines
without saturation, Maximum power transmitted to a transmitting network, series capacitor. Transient
stability Power Angle curve, Inertia clearance angle, equal swing equation, equal area criterion and its
application. 6 Hours
Suggested Readings:
1. Stevention, Elements of Power System Analysis; 3rd Edition McGraw Hill
2. C.L. Wadhwa, Electrical Power System, Wiley Eastern
3. Nagrath & Kothari, Modern Power System Analysis, Tata McGraw Hill
4. Soni, Gupta and Bhattnagar, A Course of Electrical Power; Dhanpat Rai & Sons
5. P Kundu, Power System Stability and Control, TMH