Parameter space depiction of stability limits in the presence of singularities

Author

Ayasun, Saffet ; Nwankpa, Chika ; Kwatny, Harry G.

Author_Institution

Dept. of Electr. & Comput. Eng., Drexel Univ., Philadelphia, PA, USA

Volume

3

fYear

2001

fDate

6-9 May 2001

Firstpage

125

Abstract

This paper proposes an approximate method to locate the singular points of a differential-algebraic equation (DAE) power system model as a polynomial function of load changes in the parameter space. Singular points constitute important organizing elements of power system DAE models. Thus it is essential to develop computational methods to locate them. We present a polynomial curve fitting method to obtain singular points as a function of load changes. The proposed approach is implemented into Voltage Stability Toolbox (VST) and simulation results are presented for a 5-bus system

Keywords

bifurcation; curve fitting; differential equations; parameter space methods; polynomial approximation; power system dynamic stability; power system parameter estimation; power system simulation; Voltage Stability Toolbox; bifurcation; curve fitting; differential-algebraic equation; five-bus system; load changes; parameter space; polynomial function; power system model; simulation; singular points; stability limits; Bifurcation; Computational modeling; Differential equations; Polynomials; Power generation; Power system modeling; Power system simulation; Power system stability; State-space methods; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on

Conference_Location

Sydney, NSW

Print_ISBN

0-7803-6685-9

Type

conf

DOI

10.1109/ISCAS.2001.921262

Filename

921262