发电机和负荷模型对暂态稳定性影响的概率分析  

PROBABILISTIC ANALYSIS ON INFLUENCES OF GENERATOR MODEL AND LOAD MODEL ON TRANSIENT STABILITY

作　　者：吴红斌[1] 丁明[1] 李生虎[1] 汤海雁[1] 

机构地区：[1]合肥工业大学电气与自动化工程学院,安徽省合肥市230009

出　　处：《电网技术》2004年第1期19-21,47,共4页Power System Technology

基　　金：国家自然科学基金(59977004);教育部博士点基金(20020359004);安徽省自然科学基金(0010442)。

摘　　要：详细分析了电力系统元件(如发电机、负荷)的数学模型,重点讨论了发电机模型和负荷模型及其之间相互关系对电力系统暂态稳定性的影响,并以两个系统为例,采用非序贯蒙特卡罗的概率分析算法,对发电机模型和负荷模型的影响进行了统计研究。文章指出,在电力系统的仿真计算中,采用不同的元件模型,其对电力系统暂态稳定性计算的影响是不同的。从概率分析的角度证明了在电力系统暂态稳定性分析计算中选择模型的重要性。The mathematical models of power system elements, such as generators and loads, are analyzed in detail. The influences of generator model and load model and the interrelation between them on the power system transient stability are emphatically discussed. Taking several power systems for example, the statistic research of the influences among various models is carried out by non-sequential Monte-Carlo sampling algorithm and the different influences of using different models of the elements in power system on the transient stability of power system are pointed out. From the viewpoint of probabilistic analysis the importance of choosing different models in the calculation of power system transient stability is proved.

关 键 词：发电机 负荷模型 暂态稳定性 概率分析 数学模型 电力系统 

分 类 号：TM712[电气工程—电力系统及自动化]