一种基于区内电池共享模式的主动配电网-孤岛微网协同经济调度策略  

A cooperative economic dispatch of active distribution network and island microgrid with intra area battery sharing

作　　者：陈彪 俞伟 方旭峰 李豪鑫 曹磊[3] 潘俊[4] CHEN Biao;YU Wei;FANG Xufeng;LI Haoxin;CAO Lei;PAN Jun(State Grid Zhejiang Hangzhou Fuyang Power Supply Co.,Ltd.,Hangzhou 311499,Zhejiang,China;Hangzhou Power Equipment Manufacturing Co.Ltd.Fuyang Rongda Complete Electrical Manufacturing Branch,Hangzhou 311403,Zhejiang,China;State Grid Electric Power Research Institute Wuhan Nari Co.Ltd.,Wuhan 430074,Hubei,China;Wuhan Institute of Shipbuilding Technology,Wuhan 430050,Hubei,China)

机构地区：[1]国网浙江杭州市富阳区供电有限公司,浙江杭州311499 [2]杭州电力设备制造有限公司富阳容大成套电气制造分公司,浙江杭州311403 [3]国网电力科学研究院武汉南瑞有限责任公司,湖北武汉430074 [4]武汉船舶职业技术学院,湖北武汉430050

出　　处：《储能科学与技术》2021年第6期2181-2190,共10页Energy Storage Science and Technology

基　　金：杭州电力设备制造有限公司科技项目(WNJ201-0256);国家电网公司科技项目(WNJ191-0332)。

摘　　要：我国偏远地区通常采用主动配电网和孤岛微网相结合的方式供电。然而,当储能电池规模较小时,难以消解可再生能源出力随机性、波动性和反调峰特性影响,而规模较大时又影响经济性。另外,传统配网环网柜受五防联锁保护和备用间隔稀少等问题限制,无法为移动储能提供快速接入条件。近些年带支线快速插接功能新型开关设备为移动式储能的利用提供了物理基础。为此,本文提出一种基于区内电池共享模式的主动网-孤岛微网协同经济调度策略。首先,提出使用卡车转移区内电池、实现储能分时复用的构想,利用新型节点柜的快速插接功能,建立了车-储动态关联的时空转移模型。在此基础上,将调度周期扩展为48小时,并引入分布鲁棒优化评估可再生能源发电的不确定性,构建了主动配电网-微电网协同最优潮流模型。最后,基于IEEE 14节点的配电网和典型微网的算例表明,所提策略能够显著降低电网的运行成本,提高可再生能源和储能的利用率。本文为配电网和孤岛微网的经济运行提供了一个崭新的视角。Active distribution networks and isolated micro-grids are typically combined to supply the electricity in remote areas of China.However,it is difficult to eliminate the influence of renewable generation's randomness,volatility,and anti-peak shaving characteristics when using a small-scale battery.At the same time,a large-scale battery will have an impact on the economy.In addition,traditional distribution ring network cabinets are limited by problems such as five-proof interlock protection and sparse standby intervals,which could not provide rapid access to mobile energy storage.In recent years,new switchgear with branch line fast plug-in function has provided the physical basis for the utilization of mobile energy storage.As a result, based on the regional battery sharing mode, this paper proposes a coordinatedeconomic dispatch strategy for active distribution networks and islanded microgrids. Firstly,the truck is proposed to transfer batteries to realize energy storage sharing. The new nodecabinet's fast plug-in function establishes a time-shifting model with dynamic vehicle-storagecorrelation constraints. An active distribution network-microgrid collaborative optimal tidalmodel is built on this basis by extending the dispatching cycle to 48 h and assessing theuncertainty of renewable energy generation using the distribution robust optimization method.Finally, simulation results based on an IEEE 14-node distribution network and typicalmicrogrids show that the proposed strategy could significantly reduce power grid operationcosts while improving rates of renewable energy and energy storage system. As a result, thispaper offers a fresh look at the economics of the distribution network and islanded microgrid.

关 键 词：区内电池共享 分布鲁棒 主动配电网 孤岛微网 节点柜 

分 类 号：V242.3[航空宇航科学与技术—飞行器设计]