Resilience Enhancement Dispatch Method for Distribution Systems Before, During and After Hurricanes

The resilience of distribution system requires to be enhanced to defense hurricanes. However, the existing studies only coordinate the proactive and restoration measure before and after hurricanes, neglecting the resilient operation during hurricanes. Thus, this paper proposes a novel three-stage resilient dispatch model to enhance the resilience of distribution systems. Before hurricanes, mobile emergency generators (MEGs) pre-positioning and proactive islanding schemes are optimized as preparedness measures. During hurricanes, faults isolation by remote-controlled switches (RCSs) and wind power cut-off is considered to improve the survivability of loads. After hurricanes, MEGs re-allocation and faults isolation by manual switches (MSs) are co-optimized to boost the restoration of distribution system. Considering uncertainties of wind power cut-off and line faults, the proposed method is established in a three-stage stochastic dispatching model. Finally, the effectiveness of the novel resilient dispatch model against hurricanes is verified in modified IEEE 33-bus distribution system.