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	基于轨迹特征根的扰动冲击机理探索
	陈乾 ; 沈沉 ; 汤蕾 ; CHEN Qian ; SHEN Chen ; TANG Lei
	2016-03-30 ; 2016-03-30
关键词	特高压 轨迹特征根 振荡模式 暂态稳定 电力系统 ultra-high voltage trajectory eigenvalue oscillation mode transient stability power system TM712
其他题名	Study on the Mechanism of Disturbance Impact on Power System Transient Stability Based on Trajectory Eigenvalues
中文摘要	运行人员在对华北-华中特高压电网的暂态稳定性例行扫描时,发现在某些情况下,晋豫特高压线路远端故障所引发的晋豫特高压联络线功率振荡远比近端故障所导致的振荡更剧烈。针对该现象,从扰动对振荡模式的激发程度这一角度出发,提出了一种基于轨迹特征根的扰动冲击机理。通过算例展现了轨迹特征根分析方法在非平衡点处逐段线性化,用一簇线性系统代替原非线性系统进行分析的本质,并在华北-华中特高压电网中验证了所提机理的正确性。; 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.
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://ir.lib.tsinghua.edu.cn/ir/item.do?handle=123456789/142732]
专题	清华大学
推荐引用方式 GB/T 7714	陈乾,沈沉,汤蕾,等. 基于轨迹特征根的扰动冲击机理探索[J],2016, 2016.
APA	陈乾,沈沉,汤蕾,CHEN Qian,SHEN Chen,&TANG Lei.(2016).基于轨迹特征根的扰动冲击机理探索..
MLA	陈乾,et al."基于轨迹特征根的扰动冲击机理探索".(2016).

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