Robustness Evaluation of Static Voltage Stability through Structural Characteristics of Power Systems

Author

Zhou, Jun ; Ohsawa, Yasuharu

Author_Institution

Dept. of Electr. Eng., Kyoto Univ., Kyoto

fYear

2006

Firstpage

1

Lastpage

6

Abstract

In this paper, some interesting inequalities about nodal voltage variations are established, by working on what we call the Hermitian power equations of power systems. These inequalities give lower and/or upper bounds for nodal voltage variations by means of singular value evaluations related to structural characteristics of power systems, at operating equilibrium points and subject to nodal active/reactive power increments and/or structural perturbations. The results can be exploited in robustness evaluation of static voltage stability without load flow computations.

Keywords

Hermitian matrices; power system stability; reactive power; Hermitian power equations; active/reactive power; nodal voltage variations; operating equilibrium points; power systems; robustness evaluation; singular-value inequalities; static voltage stability; structural characteristics; structural perturbations; Equations; Load flow; Power engineering computing; Power system analysis computing; Power system modeling; Power system stability; Power systems; Reactive power; Robust stability; Voltage; Hermitian; perturbation; power equation; robustness; singular-value inequalities; static voltage stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Power System Technology, 2006. PowerCon 2006. International Conference on

Conference_Location

Chongqing

Print_ISBN

1-4244-0110-0

Electronic_ISBN

1-4244-0111-9

Type

conf

DOI

10.1109/ICPST.2006.321821

Filename

4116424