含SOP的有源配电网多时段故障恢复方法研究OA

With the increasing penetration of power electronic devices and distributed generation(DG)in distribution networks,existing fault recovery schemes fail to fully utilize the short-term overload capability of soft open points(SOPs)and the ramping support of DGs,leading to insufficient resource utilization.To address this issue,this paper proposes a multi-period fault recovery method for active distribution networks,incorporating SOP short-term overload capability and DG ramping capability.First,the operating principle of SOPs is described,and its mathematical model with short-term overload capability is formulated.Then,the post-fault ramping behavior of DGs is analyzed,and a corresponding mathematical model for DG participation in fault recovery is developed.Based on these models,a multi-period fault recovery optimization framework is established,in which the dynamic coordination between SOPs and DGs is explicitly characterized,and a corresponding recovery procedure is developed.Case studies on the IEEE 33-node system verify that the proposed method can significantly enhance fault recovery capability of distribution networks,proving its effectiveness.