Influencing factors analysis of damping characteristics on low frequency oscillation

Author

Yun, Lei ; Liu, Dichen ; Wang, Rusong

Author_Institution

Sch. of Electr. Eng., Wuhan Univ., Wuhan, China

fYear

2011

fDate

11-13 May 2011

Firstpage

1

Lastpage

4

Abstract

As the scale of cross-regional power grid increases, low frequency oscillation has become an important factor that affects safe and stable operation of power grid. Based on the damping torque analysis of power system, the effects of commonly used generator models, load models and the various operation modes on small signal stability of power grid have been studied. A law describing the changes of system damping characteristics and frequency characteristics has been obtained according to the changes of related parameters based on the simulation of four-generator two-area system under the situations that the three proposed factors change respectively.

Keywords

oscillations; power grids; power system stability; cross-regional power grid; damping factors analysis; damping torque analysis; four-generator two-area system; generator models; low frequency oscillation; Analytical models; Damping; Generators; Load modeling; Oscillators; Power system stability; Stability analysis; damping characteristic; damping torque; influencing factors; law frequency oscillation;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Engineering, Energy and Electrical Drives (POWERENG), 2011 International Conference on

Conference_Location

Malaga

ISSN

2155-5516

Print_ISBN

978-1-4244-9845-1

Electronic_ISBN

2155-5516

Type

conf

DOI

10.1109/PowerEng.2011.6036522

Filename

6036522