The daily statistics of valid disturbances recorded in the historical data of the wide-area measurement system(WAMS) can reflect the stability level of a power grid. The formulas of the small signal analysis including power disturbance on the grid is given firstly; then the relationship between damping ratio and response of the oscillation magnitude of the tie-line active power is analyzed; and the relationship of the oscillation probability and damping ratio is obtained. Finally, a case study based on 10-m...
【基金】
国家自然科学基金项目(51207063)~~
【更新日期】
2015-08-05
【分类号】
TM712
【正文快照】
This work is supported by National Natural Science Foundation of China(No.51207063).0引言低频振荡是影响大型互联电网安全稳定运行的主要威胁之一,其机理分析和抑制措施等相关问题一直是电力系统研究的热点[1-7]。分析电力系统低频振荡主要方法包括特征值法和在线监测方
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