FCM Clustering Method Based Research on the Fluctuation Phenomenon in Power Network

In recent years, the research on fluctuation phenomenon in power network has received more and more attention. In this paper, the authors give an example in the 22-node system of Chinese Electric Power Research Institute to research the fluctuation phenomenon in cascading overload events. The results show that under the condition of random initial failures the flow state of power network has important effects on the fluctuation indexes of relative physical quantities, and the fluctuation index changes along with the flow level of power network. Furthermore, FCM clustering method is applied in this paper to verify that principle, which provides the basis for further research on cascading overload phenomenon.