计及安全边界和智能软开关协同配置的配电网分布式光伏准入容量优化

智能软开关(SOP)为促进配电网高渗透率光伏消纳提供了新的思路,为此将农网安全边界纳入配电网规划模型进行分布式光伏(DPV)准入容量优化研究.推导并分析考虑农网网损的改进安全边界模型,并提出其线性表达式;阐述SOP原理并建立应用于配电网规划的SOP数学模型;以DPV准入容量最大为目标,提出考虑改进安全边界和主动管理策略...

Hosting capacity optimization of distributed photovoltaic in distribution network considering security boundary and coordinate configuration of SOP

SOP(Soft Open Point) provides new ideas for the consumption of high penetration of photovoltaic in distribution network, so the security boundary of rural network is incorporated into the planning model of distribution network to optimize and research the hosting capacity of DPV(Distributed PhotoVoltaic). The improved security boundary model considering the loss of the rural network is derived and analyzed, and its linear expression is proposed. The SOP principle is explained and the mathematical model is built for distribution network planning. Then, taking the maximum of DPV hosting capacity as the objective, the active-reactive power coordinated optimal model of DPV and SOP considering the improved security boundary and active management measures is proposed. Meanwhile, SOP and other parts in this model are linearized by introducing linear approximation, so the original model is transformed into a mixed integer linear programming model, and GAMS is used to solve the optimal problem. Finally, case studies are carried out on a 51-bus rural network to illustrate the effectiveness and correctness of the proposed model and method, and the impacts of security boundary, active management measures and SOP capacity on the maximum hosting capacity of DPV are analyzed.