Resilience-Enhancing Model Considering Weather-Sensitive Constraints

Resilience strategies prove effective in mitigating extreme weather impacts. Nevertheless, conventional approaches often neglect the fluctuation in security constraints for electrical equipment during such conditions. This paper introduces a resilience-enhancing model for distribution networks, explicitly addressing the repercussions of ice disasters on voltage and power flow security limits. By scrutinizing the influencing mechanisms of corona and icing flashover on voltage security limits and evaluating current carrying capacity on power flow security limits, a dynamic weights-based model for voltage security limits and a weather correction coefficients-based model for power flow security limits are presented. Simulation results on the modified IEEE 69 and 123-node test system substantiate the validity of the proposed methodology.