Study on Frequency Dynamic of Power System Based on Continuum Model

摘要

Aiming at the complexity in the parameter distribution in continuum modeling of the power system, a new approach of distributing parameters of generator based on shortest route was proposed. The traditional discrete system was computed through the swing equation at first, and the routes from generator in disturbance to other generators were computed through the proposed method in the paper. Then, the shortest route was chosen to distribute the inertia parameter on average, and the distributed parameter of every shortest route was distributed by Gaussian smooth method. The accurate parameter distribution formula was given in the paper. And the standard data set of 10 generators and 39 nodes system of New England was computed through the proposed method. The results indicated that there are huge amount of routes form the disturbing source to other generators, which increased the difficulty of parameter distribution. The 9 shortest routes were chosen to distribute the parameter, which greatly reduced the difficulty of parameter distribution and made the analysis of power system more accurate.