摘要
共享储能已经成为缓解可再生能源大规模并网带来的一系列问题的有效途径,但现有共享储能机制未充分考虑用户对于储能的互补性和替代性需求,严重影响用户购买意愿。此外,当前共享机制也未考虑储能的电量约束、充放电功率约束和荷电状态的影响,不利于运营商的投标策略设计,使其面临经济损失风险。因此,该文设计基于组合拍卖的广义共享储能运营机制。首先,考虑基站备用储能、空调、电动汽车充电站等资源具有储能特性而运行行为迥异的特性,利用广义储能模型对其进行统一聚合封装,降低多种需求侧资源的调度难度;其次,对储能使用权进行划分,设计广义储能功率使用权和容量使用权两种交易品种,并为卖方设计计及储能荷电状态的投标曲线,为买方设计不同时段、不同品种耦合需求的组合形式,以满足用户对储能的多种需求,提高用户满意度;然后,基于组合拍卖理论,设计包含投标、竞胜标决定、资源定价与资金结算等环节的共享储能运营机制,以实现广义共享储能资源的高效利用和社会福利的公平分配;最后,算例仿真结果表明,所述运营机制可满足用户灵活性需求,降低储能服务成本。
Shared energy storage has become an effective way to solve large-scale grid-connected renewable energy,but the existing shared energy storage mechanisms have not considered the complementarity and substitution of users for energy storage’s needs,which seriously affects the purchase intention of users.In addition,the current mechanisms have not considered constraints of energy storage capacity,charging and discharging power and state of charge’s impacts,which is not conducive to the design of bidding strategy,so that operators face the risk of economic loss.Therefore,this paper designs a generalized shared energy storage operation mechanism based on combinatorial auction.First,considering that resources such as base station backup energy storage,air conditioning,and electric vehicle charging stations have energy storage characteristics and different operating behaviors,the generalized energy storage model is used to uniformly aggregate and package them,which reduces the difficulty of scheduling multiple demand-side resources.Next,the right to use energy storage is designed and divided into two types:the right to use energy storage power and the right to use energy storage capacity.Then,it also designs a bidding curve for the seller that takes into account the state of charge of energy storage,along with a combination of different periods and variety coupling needs for the buyer to meet the diverse needs of users for energy storage and improve user satisfaction.Based on the combinatorial auction theory,a shared energy storage operation mechanism is designed,which includes bidding,decision,resource pricing and fund settlement to realize the efficient use of generalized shared energy storage resources and fair distribution of social welfare.Finally,the simulation results show that the operation mechanism can meet the flexibility needs of users and reduce the cost of energy storage services.
作者
高赐威
林固静
宋梦
张紫涛
陈涛
张伟时
周佳妮
GAO Ciwei;LIN Gujing;SONG Meng;ZHANG Zitao;CHEN Tao;ZHANG Weishi;ZHOU Jiani(School of Electrical Engineering,Southeast University,Nanjing 210018,Jiangsu Province,China;Anhui Power Exchange Center Co.,Ltd.,Hefei 230022,Anhui Province,China)
出处
《中国电机工程学报》
EI
CSCD
北大核心
2024年第16期6307-6319,I0004,共14页
PROCEEDINGS OF THE CHINESE SOCIETY FOR ELECTRICAL ENGINEERING
基金
国家自然科学基金项目(52007030)
江苏省科协青年科技人才托举工程(TJ-2022-042)。
关键词
共享储能
广义储能
运营机制
组合拍卖
shared energy storage
generalized energy storage
operation mechanism
combinatorial auction
