| It is described the way to load modeling,load model structure,and model parameters identification in this paper.Subsequently,the effect of load model on dynamic simulation of actual power grid is researched.Based on actual grid,BPA is used as a tool to calculate the lines of the removal of time limit,and compare the various lines of the stability limit.The same fault for the fixed-line,dynamic simulation on power system is proceed repeatlly by just changing the load model.From all of the above,the effect of variety load models on system stability is to come.The load model parameters are an important factor that affects the power system simulation.Some load mdel has more than a dozen parameters.In this paper,composite load model as an example,the more sensitive parameters are derived.Then a new method-Probilistic Collocation Method is introduced in order to quantitatively analyze uncertainty of key parameter in load model and effect on transient stability. |
