Title :
Analysis of nonlinear modal interaction in stressed power systems with SVCs
Author :
Barocio, E. ; Essina, A.R.
Author_Institution :
Dept. of Math., Univ. of Guadalajara, Jal, Mexico
Abstract :
This paper discusses the application of normal form theory to study nonlinear modal interaction in stressed power systems that include static VAr compensators (SVCs). A second-order representation of the power system is developed wherein static compensation and synchronous machines interact through the linear representation of the transmission system. Then, a modified normal form method is used to study nonlinear modal interaction between inertial modes and control modes. The proposed approach is general and may be extended to include other FACTS devices. A simplified 4-machine, 11-bus test system is used to study the effect of SVC voltage support on system damping.
Keywords :
damping; flexible AC transmission systems; oscillations; power system stability; power systems; static VAr compensators; synchronous machines; 4-machine 11-bus test system; FACTS devices; SVC voltage support; control modes; inertial modes; modified normal form method; nonlinear modal interaction; second-order representation; static VAr compensators; static compensation; stressed power systems; synchronous machines; system damping; system oscillations; transmission system; Nonlinear dynamical systems; Power system analysis computing; Power system dynamics; Power system modeling; Power system simulation; Power system transients; Static VAr compensators; Synchronous machines; System testing; Voltage;
Conference_Titel :
Power Engineering Society Winter Meeting, 2002. IEEE
Print_ISBN :
0-7803-7322-7
DOI :
10.1109/PESW.2002.985192
