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S8 - POWER SYSTEM ANALYSIS


Mgu University S8 Electrical & electronics engineering Syllabus
Module 1
Power System Model: Representation – Single Line Diagram – per unit system – per unit impedance diagram – network model formulation – bus admittance matrix – formation of Y bus and Z bus using singular transformation – symmetrical components – sequence impedance and networks
Module 2
Power Flow Studies: Load flow problem – Gauss Siedal method – Newton Raphson method – algorithm for load flow solution – handling of voltage controlled buses, off nominal transformer ratios and phase shifting transformers
Module 3
Economic Load Dispatch: System constraints – Economic dispatch neglecting losses – optimal load dispatch including transmission losses – physical interpretation of co ordination equations – exact transmission loss formulae – modified co ordination equation – automatic load dispatching
Module 4
Symmetrical and unsymmetrical short circuit analysis: Different types of faults in power systems – symmetrical fault analysis – selection of circuit breakers – use of reactors
Unsymmetrical faults – analysis of single line to ground, line to line and double line to ground faults in power system – analysis of unsymmetrical fault using Z bus.
Module 5
Stability Analysis: Swing equation – power angle equation and power angle curve – inertia constant – steady state stability – transient stability – equal area criterion – application – numerical solution of swing equation – critical clearing time and angle – effect of clearing time on stability –methods of improving system stability – modified Euler’s method – Rangakutta method – application to the solution of swing equation and computational algorithms
References
1. Power System Engineering: Nagrath and Kothari, TMH
2. Electrical Power Systems: C. L. Wadhwa, New Age Int’l
3. Power System Analysis: Bergen, Pearson Education Asia, LPE
4. Elements of Power System Analysis: William D. Stevenson
5. Power System Stability Vol. I: Kimbark E. W.