基于智能储能软开关的多馈线共享储能鲁棒性规划

It is limited for the spatial adjustment ability of an energy storage system(ESS)with fixed location access,posing challenges in dealing with the lack of flexibility on other feeders of distributed network. To overcome this limitation,the ESS can be connected to the DC port of the soft open point(SOP),forming a multi-feeder-sharing ESS based on the soft open point integrated with ESS(E-SOP),which can flexibly transfer the power of ESS between different feeders. Consequently,a multi-objective two-layer robust planning configuration model is established for multi-feeder-sharing ESS. The polyhedral uncertainty interval is adopted in the proposed model to describe the power fluctuation range of stochastic sources and loads. The planning layer determines the configuration scheme for multi-feeder-sharing ESS,while the operational layer achieves comprehensive objectives,which includes the considerations of renewable energy consumption,network loss reduction,power support and voltage management,and the optimal operation method is determined under the worst scenario. Subsequently,the dual method and column and constraint generation algorithm(C&CG) are used to solve the model. Finally,the IEEE 33-bus system is used for example analysis and comparative verification,and the results show that multi-feeder-sharing energy storage can effectively improve the energy storage utilization rate and the operational flexibility of the distribution network.