LIU Tianhao,ZHU Yuanzhen,SUN Runjia,et al.Resilience-Enhanced Strategy for Cyber-Physical Power System Under Extreme Natural Disasters[J].Automation of Electric Power Systems,2021,45(3):40-48.
LIU Tianhao,ZHU Yuanzhen,SUN Runjia,et al.Resilience-Enhanced Strategy for Cyber-Physical Power System Under Extreme Natural Disasters[J].Automation of Electric Power Systems,2021,45(3):40-48. DOI: 10.7500/AEPS20200430020.
Resilience-Enhanced Strategy for Cyber-Physical Power System Under Extreme Natural Disasters
The ability of power systems to maintain and restore its functions under extreme disasters depends on their resilience. Considering the interaction between the cyber system and the power system
a resilience enhancement strategy for cyber-physical power system to cope with extreme natural disasters is proposed. Firstly
the defense framework of the cyber-physical power system for extreme natural disasters is established
and the decision control technology in the cyber-physical environment is demonstrated. On this basis
a preventive grid partition method is proposed
which is based on the fault probability and topological connectivity in the prediction and protection stage. Then
the adjustment method for active power of the branch is proposed to reduce the risk of power over limit and system instability caused by circuit breaking in the disaster prevention stage. For the post-disaster restoration
the collaborative restoration method for the cyber system and power system is proposed to restore the outage loads and fault lines. The simulation results of the modified New England test system show that the strategy can effectively reduce the disaster risk and accelerate the restoration of cyber-physical systems.
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