Due to the popularization of distributed energy resources（DERs）,the aggregated prosumer effect excels a general energy storage system characteristic.Virtual energy storage system（VESS） concept is proposed hereby that mimics an actual storage unit and incorporates the same charging（consumer） and discharging（producer）modes.It is possible to provide ancillary services via VESS by exploiting the flexibility and thus much research has been proposed on the optimization of the VESS scheduling.In general,the charging and discharging efficiencies of VESS are different and there can be only one status at a time slot.To achieve the optimal schedule while considering the constraints above,binary terms should be introduced into the optimization problem which end up with a nonconvex problem.In this paper,a complimentary mathematical proof is given for the convexification of this mixed-integer linear programming（MILP） problem so that the linear programming（LP） method can be applied instead if the objective function is linear.The proposed proof is validated through a case study and the simulation results show the effectiveness of the proposed method.
类型: 期刊论文
作者: Peng HOU,Junjie HU,Guangya YANG
来源: Journal of Modern Power Systems and Clean Energy 2019年06期
年度: 2019
分类: 工程科技Ⅱ辑
专业: 动力工程,电力工业
单位: Center of Electrical Engineering,Technical University of Denmark,State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,North China Electric Power University
基金: supported by Energy Technology Development and Demonstration Program (No. EUDP171:(12551)),National Natural Science Foundation of China (No. 51877078)
分类号: TK02;TM73
页码: 1735-1739
总页数: 5
文件大小: 933K
下载量: 3
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