Evaluation of the Importance of Network Nodes Based on Weighted Network Model

Some important nodes in Power grid may have serious impacts on cascading faults. In this paper, using reactance of transmission line as the weight parameter, a new weighted power network model agglomeration is established with application of complex network theory. The important node evaluation indicator is proposed on the basis of the weighted power network model. Both distribution characteristics of network topology and electrical characteristics of the power grid are considered in this method. Simulation of EPRI-36 bus system shows the effectiveness of the method.