Abstract:To address the challenges posed by the frequent occurrence of typhoons, which threaten the reliability and stability of distribution networks, a resilient-oriented expansion planning method for distribution networks considering typhoon impacts under uncertainties is proposed. First, considering the vulnerability of the distribution network during typhoon events, a fault scenario set for power lines is constructed. Second, for regular scenarios, a scenario clustering method is employed to generate typical scenarios that capture the fluctuations in power generation and load demand. Subsequently, with the objective of minimizing total planning costs and outage losses caused by typhoons during the planning period, constraints such as investment budget, power flow, load shedding at nodes, and operational variable limits are integrated into the model. Based on stochastic optimization, a distribution network expansion planning model is developed, incorporating resilience requirements under uncertainty. The model is formulated as a mixed-integer linear programming (MILP) problem, which can be effectively solved using commercial solvers. Simulation results demonstrate that the method significantly enhances the load supply capacity and disaster resistance of the distribution system during the planning period, providing technical support for planning resilient distribution networks.