Study on the mechanism of disturbance impact on power system transient stability based on trajectory eigenvalues

被引：0
作者：
Chen, Qian [1 ]
Shen, Chen [1 ]
Tang, Lei [1 ]
机构：
[1] State Key Lab of Control and Simulation of Power Systems and Generation Equipments, Dept. of Electrical Engineering, Tsinghua University, Haidian District, Beijing
来源：
Chen, Qian | 1600年 / Power System Technology Press卷 / 38期
基金：
中国国家自然科学基金;
关键词：
Oscillation mode; Power system; Trajectory eigenvalue; Transient stability; Ultra-high voltage;
D O I：
10.13335/j.1000-3673.pst.2014.09.023
中图分类号：
学科分类号：
摘要：
Routine scanning of the transient stability of the North China-Central China interconnected power system finds that under some circumstances the disturbances occurring far away from the Jin-Yu ultra-high voltage (UHV) transmission line may cause more severe power oscillations on the Jin-Yu UHV line than the same type of disturbances occurring close to it. From the perspective that the corresponding oscillation mode is excited, a kind of mechanism of disturbance impact on power system transient stability based on trajectory eigenvalues is proposed to explain the above phenomenon. The nature of trajectory eigenvalue analysis which is to linearize the nonlinear system at non-equilibrium step by step and represent the nonlinear system by a series of linear systems is originally elaborated by case studies of power systems. The proposed mechanism is also validated by the case study of the North China-Central China interconnected power system.
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收藏
页码：2461 / 2465
页数：4
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