Analysis and Experiment of Influencing Factors of Power Branch Parameters for Intelligent Dispatching

With the changes of meteorological environment and power operation, power branch parameter will produce fluctuation. In this paper, the influencing factors of branch parameters are introduced from temperature, ampacity, seasonal variation. Dynamic characteristic of resistance and operational characteristics of reactance is studied. Fully considering the trait of probability, the test case of impedance is designed based on the platform of experimental verification in CEPRI. The results shows that reactance is the fundamental factor in state estimation indicator.