A study on decomposition and model reduction for wide area power system stability assessment

Author

Nihei, Nobuyuki ; Oyama, Tsutomu

Author_Institution

Div. of Electr. & Comput. Eng., Yokohama Nat. Univ., Japan

Volume

1

fYear

1999

fDate

31 Jan-4 Feb 1999

Firstpage

651

Abstract

In order to stabilize a wide area power system, it is very important to have a fast stability assessment method. In this paper, a decomposition and model reduction method for wide area power system stability assessment is discussed. The subsystem model reduction is performed using the characteristic of each oscillation mode. The oscillation modes which only related to the local oscillation are eliminated. With the reduced and decomposed model, it is possible to estimate the steady state stability quickly. Furthermore, since the proposed method is based on the decomposition of the system, it is possible to utilize a parallel processing technique to improve the calculation speed. In order to show the effectiveness of the method, steady state stability analysis was performed using the model power system

Keywords

oscillations; parallel processing; power system analysis computing; power system dynamic stability; reduced order systems; decomposition; fast stability assessment method; local oscillation; model power system; model reduction; oscillation mode; parallel processing technique; steady state stability analysis; steady state stability estimation; subsystem model reduction; wide area power system; wide area power system stability assessment; Eigenvalues and eigenfunctions; Equations; Frequency; Power engineering and energy; Power system analysis computing; Power system modeling; Power system stability; Reduced order systems; Stability analysis; Steady-state;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Engineering Society 1999 Winter Meeting, IEEE

Conference_Location

New York, NY

Print_ISBN

0-7803-4893-1

Type

conf

DOI

10.1109/PESW.1999.747532

Filename

747532