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  

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

作　　者：姚天宇 李勇[1] 乔学博 韩宇 矫舒美 曹一家[1] YAO Tianyu;LI Yong;QIAO Xuebo;HAN Yu;JIAO Shumei;CAO Yijia(College of Electrical and Information Engineering,Hunan University,Changsha 410082,China;Jiangsu Xudian Construction Group Co.,Ltd.,Xuzhou 210009,China)

机构地区：[1]湖南大学电气与信息工程学院,湖南长沙410082 [2]江苏徐电建设集团有限公司,江苏徐州210009

出　　处：《电力自动化设备》2022年第4期63-70,共8页Electric Power Automation Equipment

基　　金：国家重点研发计划政府间国际科技创新合作重点项目(2018YFE0125300);国家自然科学基金资助项目(52061130217);湖湘高层次人才聚集工程项目(2019RS1016);长沙市杰出创新青年计划(KQ2009037);湖南省研究生科研创新项目(CX20200429)。

摘　　要：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的DPV与SOP有功-无功协同优化配置模型;引入线性化近似将SOP模型等进行线性化,将原模型转化为混合整数线性规划模型,并采用GAMS进行优化求解。最后,基于某农网51节点算例验证所提模型和方法的有效性和正确性,并分析安全边界、主动管理措施、SOP容量对DPV最大准入容量的影响。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.

关 键 词：高渗透率光伏 分布式电源 农网 安全边界 线性化 准入容量 智能软开关 

分 类 号：TM615[电气工程—电力系统及自动化] TM715