考虑紧急备用与光伏出力不确定性的微电网分布式储能规划方法  

A Planning Method of Distributed Energy Storage of Microgrid Considering Emergency Power Reserves and Uncertainty of PV Output Power

作　　者：吴彬锋 傅颖 陈扬哲 刘子卓 江道灼[3] 朱乃璇 徐伟丰 WU Binfeng;FU Ying;CHEN Yangzhe;LIU Zizhuo;JIANG Daozhuo;ZHU Naixuan;XU Weifeng(State Grid Zhejiang Lishui Power Supply Company,Lishui Zhejiang 323000,China;State Grid Zhejiang Songyang Power Supply Company,Lishui Zhejiang 323400,China;College of Electrical Engineering,Zhejiang University,Hangzhou 310027,China)

机构地区：[1]国网浙江省电力有限公司丽水供电公司,浙江丽水323000 [2]国网浙江松阳县供电有限公司,浙江丽水323400 [3]浙江大学电气工程学院,杭州310027

出　　处：《浙江电力》2021年第9期32-40,共9页Zhejiang Electric Power

基　　金：国网浙江省电力有限公司丽水供电公司科技项目(5211LS1900BT)。

摘　　要：微电网作为消纳可再生能源的重要途径,面临着可再生能源出力不确定性带来的挑战。针对该问题,提出了紧急备用约束下的微电网分布式储能系统的规划方法,建立了结合分布式储能运行特征的微电网潮流模型,以鲁棒优化分析光伏出力波动性的最差工况,并采用列与约束生成算法结合大M法求解该模型,将原问题分解为混合整数二阶锥规划主问题和子问题并交替求解。通过求解研究算例,验证了所提优化分布式储能配置方法和运行调度策略的可行性,并在充分满足系统紧急功率备用的情况下,降低了微电网系统的综合成本。As a key avenue of renewable energy consumption,microgrid,is facing challenges from the output power uncertainty of renewable energies.To solve the problem,this paper proposes a planning method of distributed energy storage of microgrid.The method handles the uncertainty of PV output power and combines emergency reserve constraints.A microgrid power flow model based on operation characteristics of distributed energy storage was built,and the worst operating condition of PV output fluctuations was analyzed by robust optimization.Besides,the column-and-constraint generation(C&CG)algorithm combining with Big M method is adopted to decompose the original problem as a master problem and sub-problems to be solved by mixed-integer second-order cone programming(MISOCP).By solving the research example,the paper verifies the feasibility of the distributed energy storage configuration method and operation dispatching strategy.The method can not only meet the demand of emergency power reserves but also reduce the comprehensive cost of microgrid.

关 键 词：微电网 分布式储能 混合整数二阶锥规划 两阶段鲁棒优化 列与约束生成算法 

分 类 号：TM715[电气工程—电力系统及自动化]