UNIT -1
1.Z-bus Algorithm
2.Reactance diagram**,Impedance diagram **
UNIT -2
1.Procedure ,Algorithm,Flow chart for load flow analysis for Gauss Seidel **,Newton Raphson method
UNIT -3
1.Problems to solve Fault current,Fault level **
2.Fault current by Z-bus algorithm
UNIT -4
1.Expression for LL,LLG,Fault current** of unloaded generator
2.3 phase symmetrical components
UNIT -5
1.Swing equation by Euler's,Runge Kutta Method
2.Critical clearing angle **
3.Transient Stability Analysis
**-Important Question ,Problem are expected to ask basis on these topic UNIT -2
1.Procedure ,Algorithm,Flow chart for load flow analysis for Gauss Seidel **,Newton Raphson method
UNIT -3
1.Problems to solve Fault current,Fault level **
2.Fault current by Z-bus algorithm
UNIT -4
1.Expression for LL,LLG,Fault current** of unloaded generator
2.3 phase symmetrical components
UNIT -5
1.Swing equation by Euler's,Runge Kutta Method
2.Critical clearing angle **
3.Transient Stability Analysis
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UNIT I POWER SYSTEM
Need for system planning and operational studies Power scenario in India Power system components, Representation Single line diagram per unit quantities p.u. impedance diagram p.u. reactance diagram, Network graph Theory Bus incidence matrices, Primitive parameters, Formation of bus admittance matrix Direct inspection method Transformation method. Singular
UNIT II
POWER FLOW ANALYSIS
Bus classification Formulation of Power Flow problem in polar coordinates solution using Gauss Seidel method Handling of Voltage controlled buses Solution by Newton Raphson method - Flow charts - Comparison of methods. Power flow Power Flow
UNIT III
SYMMETRICAL FAULT ANALYSIS
Assumptions in short circuit analysis Symmetrical short circuit analysis using Thevenin's theorem Bus Impedance matrix building algorithm (without mutual coupling) - Symmetrical fault analysis through bus impedance matrix Post fault bus voltages Fault level - Current limiting reactors.
UNIT IV
UNSYMMETRICAL FAULT ANALYSIS
Symmetrical components Sequence impedances Sequence networks Analysis of unsymmetrical faults at generator terminals: LG, LL and LLG unsymmetrical fault occurring at any point in a power system.
UNIT V
STABILITY ANALYSIS
Classification of power system stability - Rotor angle stability Power-Angle equation - Steady state stability Swing equation Solution of swing equation by step by step method Swing curve, Equal area criterion Critical clearing angle and time, Multi-machine stability analysis - modified Euler method.