Title :
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
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;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.921262
