Visualization of interarea oscillations using an extended subspace identification technique

Author

Ramos, J. ; Jimenez, R. ; Barocio, E.

Author_Institution

Dept. of Electr. Eng., CINVESTAV, Zapopan, Mexico

fYear

2013

fDate

22-24 Sept. 2013

Firstpage

1

Lastpage

6

Abstract

Online assessment and control of low-damping power system oscillations is a challenging problem. This paper discusses the use of subspace stochastic method to visualize and characterize the time evolution of power system electromechanical modes. Using normalized instantaneous amplitudes of modal components, two time-varying indexes to determine mode distribution maps are proposed and tested. The method is well suited to automation and can be incorporated to existing wide-area monitoring systems. Simulation studies on a 16-machine, 68-bus test system show the applicability of the proposed technique.

Keywords

electromechanical effects; power system control; power system identification; power system measurement; stochastic processes; 16-machine test system; 68-bus test system; extended subspace identification technique; interarea oscillation visualization; low-damping power system oscillation assessment; low-damping power system oscillation control; mode distribution map determination; normalized instantaneous amplitude; power system electromechanical mode; subspace stochastic method; time evolution characterization; time-varying index; wide-area monitoring system; Indexes; Matrix decomposition; Monitoring; Observability; Oscillators; Power systems; Vectors;

fLanguage

English

Publisher

ieee

Conference_Titel

North American Power Symposium (NAPS), 2013

Conference_Location

Manhattan, KS

Type

conf

DOI

10.1109/NAPS.2013.6666931

Filename

6666931