一种适用于电力系统中长期稳定仿真的汽轮机模型  

A kind of Steam Turbine Model for Mid-Long Term Stable Simulation of Power Systems

作　　者：张宇 杨玉磊 

机构地区：[1]徐州华润电力有限公司,江苏徐州221000 [2]江苏省电力公司检修分公司,江苏徐州221000

出　　处：《电气开关》2013年第6期36-39,共4页Electric Switchgear

摘　　要：目前电力系统稳定仿真广泛使用的汽轮机模型是IEEE1973年和1991年公布的标准模型,该模型能反映汽轮机一定的特点,在多机系统仿真使用方便,但不能满足中长期稳定仿真的需要。而电站仿真机使用的模型能详细反映汽轮机的特点,但微分方程太多,无法应用与多机仿真。使用电站仿真建模的方法,建立适用于电力系统中长期稳定仿真的汽轮机模型。使用Eurostag仿真软件,在单机无穷大系统上,做了负荷阶跃减小30%、双回线的其中一条线路短路跳开、调门开0.02、三个仿真实验,并将仿真结果和IEEE的汽轮机模型进行比较,证明了本模型的正确性。At present the electrical power system stable simulation wide spread useing steam turbine model is the standard model which the IEEE announced in 1973 and 1991. This model was composed by three inertia link, could reflects certain characteristic of the steam turbine, is easy operating in multi-machine system simulation, but could not meet midlong term stable simulation needs. Moreover, the model used in power plant simulation machine can reflect the steam turbine characteristic in detail, but the differential equations are too many to apply multi-machine simulations. This article uses the method of the power plant simulation modelling, establishes steam turbine model that is suitable in the electrical power system the mid-term and long-term stable simulation. Using Eurostag simulation software, we made four simulation experiment：the load step leaping to reduce 30% , one line of the double wire line short-circuiting and opening,the valve opening 0.02, and three-phase short-circuits on the exportation of generator on a single-machine to infinite-busbar sys- tem. After coMParison of results with the IEEE steam turbine model, the paper proved the accuracy of the new model.

关 键 词：中长期稳定仿真 汽轮机模型 EUROSTAG 

分 类 号：TM71[电气工程—电力系统及自动化]