Department of Electrical and Electronics Engineering

ADVANCED POWER SYSTEM ANALYSIS

 

REFERENCES:

  1. G W Stagg , A.H El. Abiad “Computer Methods in Power System Analysis”, McGraw Hill, 1968.

  2. P.Kundur, “Power System Stability and Control”, McGraw Hill, 1994.

  3. A.J.Wood and B.F.Wollenberg, “Power Generation Operation and Control”,

    John Wiley and sons, New York, 1996.

  4. W.F.Tinney and W.S.Meyer, “Solution of Large Sparse System by Ordered

    Triangular Factorization” IEEE Trans. on Automatic Control, Vol : AC-18,

    pp:333-346, Aug 1973.

  5. K.Zollenkopf, “Bi-Factorization : Basic Computational Algorithm and

    Programming Techniques ; pp:75-96 ; Book on “Large Sparse Set of Linear Systems” Editor: J.K.Rerd,Academic Press, 1971. 

 

Unit - 1
SOLUTION TECHNIQUE
Sparse Matrix techniques for large scale power systems: Optimal ordering schemes for preserving sparsity. Flexible packed storage scheme for storing matrix as compact arrays Factorization by Bifactorization and Gauss elimination methods; Repeat solution using Left and Right factors and L and U matrices.
Unit - 2
POWER FLOW ANALYSIS
Power flow equation in real and polar forms; Review of Newtons method for solution; Adjustment of P-V buses; Review of Fast Decoupled Power Flow method; Sensitivity factors for P-V bus adjustment; Net Interchange power control in Multi-area power flow analysis: ATC, Assessment of Available Transfer Capability (ATC) using Repeated Power Flow method; Continuation Power Flow method.
Unit - 3
OPTIMAL POWER FLOW
Problem statement; Solution of Optimal Power Flow (OPF) The gradient method, Newtons method, Linear Sensitivity Analysis; LP methods With real power variables only LP method with AC power flow variables and detailed cost functions; Security constrained Optimal Power Flow; Interior point algorithm; Bus Incremental costs.
Unit - 4
SHORT CIRCUIT ANALYSIS
Fault calculations using sequence networks for different types of faults. Bus impedance matrix (ZBUS) construction using Building Algorithm for lines with mutual coupling; Simple numerical problems. Computer method for fault analysis using ZBUS and sequence components. Derivation of equations for bus voltages, fault current and line currents, both in sequence and phase domain using Thevenins equivalent and ZBUS matrix for different faults.
Unit - 5
TRANSIENT STABILITY ANALYSIS
Introduction, Numerical Integration Methods: Euler and Fourth Order Runge-Kutta methods, Algorithm for simulation of SMIB and multi-machine system with classical synchronous machine model ; Factors influencing transient stability, Numerical stability and implicit Integration methods.