Abstract:
In order to improve the comprehensive benefit of allocating resources in distribution network, a multi-resource and multi-objective planning method for distribution network considering resilience improvement was proposed. Firstly, a multi-objective two-stage stochastic programming model was established considering the operation mode and coordination method of multi-resources in various situations. Decisions were made on line reinforcement, energy storage systems(ESS) placement, and tie breaker placement in the first phase, and in the second phase, operating, reliability, and loss-of-load costs in normal, fault, and emergency situations were reduced to the lowest to achieve a compromise between investment cost and comprehensive goals. Secondly, the threshold method was used to quantify the uncertainty of line damage under extreme events to generate typical scenarios of line damage, and the mixed integer second-order cone programming was used to solve the problem. Finally, the effectiveness of the proposed planning method was verified on the improved IEEE33 node example. The results show that the multi-resource planning method oriented to the economy, reliability and resilience of the distribution network can effectively reduce the comprehensive cost of the distribution network and maximize investment returns.