Quick Hosting Capacity Evaluation Based on Distributed Dispatching for Smart Distribution Network Planning with Distributed Generation  

作　　者：Bing Sun Ruipeng Jing Leijiao Ge Yuan Zeng Shimeng Dong Luyang Hou 

机构地区：[1]the School of Electrical and Information Engineering,Tianjin University,Tianjin 300072,China [2]State Grid Corporation of China,Beijing,China [3]the School of Computer Science(National Pilot Software Engineering School),Beijing University of Posts and Telecommunications,Beijing,China

出　　处：《Journal of Modern Power Systems and Clean Energy》2024年第1期128-140,共13页现代电力系统与清洁能源学报（英文）

基　　金：supported in part by the State Grid Scientific and Technological Projects of China(No.SGTYHT/21-JS-223);in part by the National Natural Science Foundation of China(No.52277118),in part by the Tianjin Science and Technology Planning Project(No.22ZLGCGX00050);in part by the 67th Postdoctoral Fund and Independent Innovation Fund of Tianjin University in 2021.

摘　　要：The smart distribution network(SDN)is integrat ing increasing distributed generation(DG)and energy storage(ES).Hosting capacity evaluation is important for SDN plan ning with DG.DG and ES are usually invested by users or a third party,and they may form friendly microgrids(MGs)and operate independently.Traditional centralized dispatching meth od no longer suits for hosting capacity evaluation of SDN.A quick hosting capacity evaluation method based on distributed optimal dispatching is proposed.Firstly,a multi-objective DG hosting capacity evaluation model is established,and the host ing capacity for DG is determined by the optimal DG planning schemes.The steady-state security region method is applied to speed up the solving process of the DG hosting capacity evalua tion model.Then,the optimal dispatching models are estab lished for MG and SDN respectively to realize the operating simulation.Under the distributed dispatching strategy,the dual-side optimal operation of SDN-MGs can be realized by several iterations of power exchange requirement.Finally,an SDN with four MGs is conducted considering multiple flexible resources.It shows that the DG hosting capacity of SDN oversteps the sum of the maximum active power demand and the rated branch capacity.Besides,the annual DG electricity oversteps the maximum active power demand value.

关 键 词：Smart distribution network(SDN) MICROGRID hosting capacity multi-objective optimization distributed opti mal dispatching flexible resource 

分 类 号：TM615[电气工程—电力系统及自动化]