A novel method of look-ahead contingency ranking for saddle-node bifurcation

The objective of this paper is to present a powerful procedure for identifying severe single branch outage contingencies with respect to saddle-node bifurcation, given a power system operating point, a load demand forecast and a generation dispatch. A novel two-stage look-ahead ranking algorithm for saddle-node bifurcation are described. The first stage is based on a branch MVAr participation index and the second stage is based on sensitivity analysis. The distinguishing features are the ability: (i) to screen out the weak contingencies; and (ii) to directly estimate the strong contingency bifurcation values. The novel two-stage look-ahead ranking algorithm has been applied to a 3493 bus power system with promising results.

[1]  G. C. Ejebe,et al.  Fast contingency screening and evaluation for voltage security analysis , 1988 .

[2]  Fernando L. Alvarado,et al.  Sensitivity of the loading margin to voltage collapse with respect to arbitrary parameters , 1997 .

[3]  Alexander J. Flueck,et al.  Look-ahead voltage and load margin contingency selection functions for large-scale power systems , 1997 .

[4]  John Zaborszky,et al.  Fast Contingency Evaluation Using Concentric Relaxation , 1980, IEEE Transactions on Power Apparatus and Systems.

[5]  Robert Fischl,et al.  An inter-area transmission and voltage limitation (TVLIM) program , 1995 .

[6]  G. Ejebe,et al.  Automatic Contingency Selection , 1979, IEEE Transactions on Power Apparatus and Systems.

[7]  V. Brandwajn,et al.  Pre-screening of single contingencies causing network topology changes , 1991, IEEE Power Engineering Review.

[8]  V. Brandwajn,et al.  Efficient bounding method for linear contingency analysis , 1988 .

[9]  A. Bose,et al.  An adaptive pre-filter for the voltage contingency selection function , 1989, Conference Papers Power Industry Computer Application Conference.

[10]  F.D. Galiana,et al.  Bound Estimates of the Severity of Line Outages in Power System Contingency Analysis and Ranking , 1984, IEEE Transactions on Power Apparatus and Systems.

[11]  N. Hadjsaid,et al.  Fast contingency screening for voltage-reactive considerations in security analysis , 1993 .

[12]  V. Brandwajn,et al.  Complete Bounding Method for AC Contingency Screening , 1989, IEEE Power Engineering Review.