Efficient solution for equilibrium points in transient energy function analysis

Author

Irisarri, G.D. ; Ejebe, G.C. ; Waight, J.G. ; Tinney, W.F.

Author_Institution

Empros Syst. Int., Plymouth, MN, USA

Volume

9

Issue

2

fYear

1994

fDate

5/1/1994 12:00:00 AM

Firstpage

693

Lastpage

699

Abstract

A new method for the determination of stable and unstable equilibrium points in the transient energy function method of power system stability analysis is presented. Computation of the unstable equilibrium point is one of the fundamental steps in determination of the energy margin. The basis of the new method is its formulation as a power flow problem and the use of well known power flow algorithms for its solution. Sparse matrix methods are used to achieve the indicated speedups. The new method has shown robust behavior in all systems tested and performance improvements over previous methods. Results using test systems of up to 161 generators, 901 buses, and 2000 lines are given

Keywords

digital simulation; load flow; matrix algebra; power system analysis computing; power system stability; power system transients; CPU time; algorithms; energy margin; equilibrium points; performance; power flow problem; power system stability analysis; sparse matrix methods; transient energy function analysis; Admittance; Centralized control; EMP radiation effects; Load flow; Nonlinear equations; Robustness; Sparse matrices; Stability analysis; System testing; Transient analysis;

fLanguage

English

Journal_Title

Power Systems, IEEE Transactions on

Publisher

ieee

ISSN

0885-8950

Type

jour

DOI

10.1109/59.317673

Filename

317673