Engineering Tutorials

EEE-601 : POWER SYSTEM ANALYSIS

Unit-I

Representation of Power System Components:

Synchronous machines, Transformers,Transmission lines, One line diagram, Impedance and reactance diagram, per unit System

Symmetrical components:

Symmetrical Components of unbalanced phasors, power in terms of symmetrical components, sequence impedances and sequence networks.

Symmetrical fault analysis:

Transient in R-L series circuit, calculation of 3-phase short circuit current and reactance of synchronous machine, internal voltage of loaded machines under transient conditions

Unit-II

Unsymmetrical faults:

Analysis of single line to ground fault, line-to-line fault and Double Line to ground fault on an unloaded generators and power system network with and without fault impedance.

Formation of _Zbus using singular transformation and algorithm, computer method for short circuit calculations

Unit-III

Load Flows:

Introduction, bus classifications, nodal admittance matrix (YBUS ), development of load flow equations,

load flow solution using Gauss Siedel and Newton-Raphson method, approximation to N-R method, line flow equations and fast decoupled method

Unit-IV

Power System Stability:

Stability and Stability limit, Steady state stability study, derivation of Swing equation, transient stability studies by equal area criterion and step-by-step method. Factors affecting steady state and transient stability and methods of improvement

Unit-V

Traveling Waves:

Wave equation for uniform Transmission lines, velocity of propagation, surge impedance, reflection and transmission of traveling waves under different line loadings. Bewlay’s lattice diagram, protection of equipments and line against traveling waves

Text Books:

1. W.D. Stevenson, Jr. “ Elements of Power System Analysis”, Mc Graw Hill.

2. C.L. Wadhwa, “Electrical Power System”, New Age International.

3. Chakraborthy, Soni,Gupta & Bhatnagar, “Power System Engineering”, Dhanpat Rai & Co.

4. T.K Nagsarkar & M.S. Sukhija, “Power System Analysis” Oxford University Press,2007.

Reference Books:

5. L. P. Singh; “Advanced Power System Analysis & Dynamics”, New Age International

6. Hadi Sadat; “Power System Analysis”, Tata McGraw Hill.

7. D.Das, “ Electrical Power Systems” New Age International, 2006.

8. J.D. Glover, M.S. Sharma & T.J.Overbye, “Power System Analysis and Design” Thomson, 2008.

9. P.S.R. Murthy “ Power System Analysis” B.S. Publications,2007.

10. Stagg and El-Abiad, “Computer Methods in Power System Analysis” Tata Mc Graw Hill 11. Kothari & Nagrath, “Modern Power System Analysis” Tata Mc. Graw Hill.

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