State Grid Shandong Electric Power Research Institute

Qiao Fang

Shan Li

Dong Yang

Zhixuan Zhang

Wenxue Liu

Facai Xing

Dingyi Cheng

Kang Zhao

Hao Tian

Ning Zhou

Zhe Jiang

Huan Ma

Xudong Hao

The present disclosure provides a method and a system for quickly determining transient stability of a half-wavelength transmission system. The method includes: obtaining power and a power angle of a feeding-end generator of a half-wavelength transmission system; and determining transient power angle stability and a power angle instability mode of the half-wavelength transmission system by using a constructed index system, where two power angle instability modes, that is, an instability mode 1 and an instability mode 2, are specifically constructed for the half-wavelength transmission system based on an equal area method. Based on the equal area method, the present disclosure constructs two instability modes specific to the half-wavelength transmission system, so as to accurately describe transient power angle characteristics of the half-wavelength transmission system under a severe fault, and characteristics of the two instability modes are significantly different from those of an AC transmission mode.

Method and system for quickly determining transient stability of half-wavelength transmission system

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Shandong, China

Qiao Fang