摘要
以扩展等面积原则(EEAC)为理论依据的暂态稳定分析,与李亚普诺夫方法完全不同,具有突出的优势,能够对系统的暂态稳定给出定量的指标.应用EEAC理论方法对2005年和2006年丰大运行方式下的暂态稳定裕度进行了定量分析.云南电网中由七甸-罗平和曲靖-罗平500 kV线路组成的输电断面上发生扰动时,南方电网的暂态稳定裕度进行了仿真研究.2006年七甸、罗平间架设500 kV第二回线后,系统的暂态稳定裕度得到了较大程度的提高.
Transient stability analysis by the theory of Extend Equal-Area Criterion is completely different from Lyapunov method. EEAC means can propose quantitative index for the system transient stability. In this paper, EEAC theory is applied to perform the quantitative analysis of transient stability of the year 2005 and 2006 in southern china power grid. Simulation study is carried out when faults occur on the cross-section of Qidian-Luoping and Qujing-Luoping 500 kV lines. Transient stability margin is enhanced when the second 500kV line between Qidian and Luoping is operated in 2006.
出处
《昆明理工大学学报（理工版）》
2007年第2期34-37,共4页
Journal of Kunming University of Science and Technology(Natural Science Edition)
基金
国家自然科学基金资助项目(项目编号:50347026
50467002)
云南省科技攻关项目(项目编号:2003GG10)
云南省自然科学基金项目(项目编号:2005F0005Z
2002E0025M
2004E0020M)
关键词
云南电网
暂态稳定裕度
输电断面
电力系统
Yunnan power grid
transient stability margin
transmission cross-section
power system
