Title :
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
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;
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
DOI :
10.1109/ICPST.2006.321821
