A Fault Risk Assessment Method for Security Control Systems Based on Control Strategy Influence

Résumé fourni par la source

The security control system is an important facility to ensure the safe operation of the power grid in the event of serious faults. The failure of its device will cause serious consequences to the operation and maintenance of the power grid. Based on the analysis of the structure and function chain of the security control system, this paper proposes a quantitative assessment method for fault risk based on the influence of control strategies. Construct a risk assessment indicator system from three perspectives: the proportion of control strategies, the substitutability of control strategies, and the degree of control loss. Finally, combined with a simulation case, the correctness and feasibility of the evaluation method were verified.

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