The study for protection strategy of cascading failure of interdependent network with the load

Random interdependent network model based on the typical scale-free network is taken as the research object in this paper. The protection idea of single network is introduced to the interdependent network, and four kinds of protection strategies are put forward for the cascading failure of interdependent network with load, and the four kinds of protection strategies is simulated and taken a comparative analysis under different values of the adjustable parameter and the tolerance parameter. The simulation results show that the four kinds of protection strategies are effective, and found that the protection strategy considering the degree of interdependent nodes is more effective than considering unilateral node degree, and compared to consider addition of the interdependent nodes degree, the protection strategy considering product of the dependent nodes degree is much better.