Stability boundary approximation of a power system using the real normal form of vector fields

S. Saha, A. A. Fouad, W. H. Kliemann, Vijay Vittal

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60 Citations (Scopus)

Abstract

This paper presents a method to approximate the stability boundary of the postfault stable equilibrium point of a power system using the real normal form of vector fields. We first explain the method of approximating the invariant manifolds of an equilibrium point via second order normal forms, and present an instructive example. The proposed method is then used to analyze an 11 generator test system. For two different fault scenarios and different loading conditions, we determine the controlling unstable equilibrium point, study the change of this UEP under increased loading, find the approximation to the stability boundary, and discuss the change of its shape. Finally, the behavior of system trajectories near the UEP and the stability boundary is described.

Original language English (US) 797-802 6 IEEE Transactions on Power Systems 12 2 https://doi.org/10.1109/59.589689 Published - 1997 Yes

Trajectories

ASJC Scopus subject areas

• Electrical and Electronic Engineering

Cite this

Stability boundary approximation of a power system using the real normal form of vector fields. / Saha, S.; Fouad, A. A.; Kliemann, W. H.; Vittal, Vijay.

In: IEEE Transactions on Power Systems, Vol. 12, No. 2, 1997, p. 797-802.

Research output: Contribution to journalArticle

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