Title :
Topological characteristic studies on power system small signal stability region
Author :
Jia, Hongjie ; Yu, Xiaodan ; Zhang, Pei
Author_Institution :
Sch. of Electr. Eng. & Autom., Tianjin Univ.
Abstract :
Topological characteristics of the power system small signal stability region are tentatively studied in this paper. First, some necessary background theories on nonlinear dynamic system and small signal stability region are briefly reviewed. Then, we present an example that there exists a hole (instability region) inside the small signal stability region. Theoretical study is performed to find the cause of this phenomenon based on bifurcation analysis. It is found that occurrence of the hole in the small signal stability region is caused by a 2-order degenerated Hopf bifurcation, while breaking of the hole is caused by concurrence of two Hopf bifurcations. Studies of this paper are helpful to understand the topological characteristics of the small signal stability region in power systems
Keywords :
bifurcation; nonlinear dynamical systems; power system dynamic stability; bifurcation analysis; degenerated Hopf bifurcation; nonlinear dynamic system; power system small signal stability region; Bifurcation; Eigenvalues and eigenfunctions; Load flow; National security; Power system analysis computing; Power system dynamics; Power system security; Power system stability; Power system transients; Stability analysis; Hopf bifurcation; Small signal stability region; bifurcation analysis; degeneration; power system stability;
Conference_Titel :
Power Engineering Society General Meeting, 2006. IEEE
Conference_Location :
Montreal, Que.
Print_ISBN :
1-4244-0493-2
DOI :
10.1109/PES.2006.1709022
