ISSN : 2349-3917
The reliability of power system has received increasing attentions, in this paper, we apply the epidemic propagation model with the reliability each location in social networks to analyze the spread of significant frequency changes over power network, these will be discussed the impacts of reliability on the spread of the frequency deviation over power network. Theory analysis and computer simulation show that reliability rate reshapes the critical threshold of spreading dynamics and brings a nonlinear impact on the final size of frequency oscillation.