考虑不确定性和含换电站的直流微电网优化研究  

Optimization of DC microgrid Considering Uncertainty and Battery Swap Station

作　　者：汪洋[1] 陈凤云 肖文 陈武晖[1] WANG Yang;CHEN Fengyun;XIAO Wen;CHEN Wuhui(College of Electrical and Information Engineering,Jiangsu University,Zhenjiang 212013,China)

机构地区：[1]江苏大学电气信息工程学院,江苏镇江212013

出　　处：《智慧电力》2020年第7期46-51,共6页Smart Power

基　　金：国家自然科学基金资助项目(51977098);江苏省重点研发计划(BE2016727)。

摘　　要：为了提高直流微电网的经济效益和缓解电动汽车行驶里程有限、充电时间长所带来的问题,提出了一种含分布式能源和电池交换站的直流微电网孤岛运行优化模型。建立了以直流微电网日运行成本、污染治理成本和电池交换站日运行成本及其约束为目标的经济调度模型,同时考虑了可再生能源如风力发电、光伏发电等存在输出功率不稳定的严重问题,利用鲁棒优化对其不确定性进行建模,利用CPLEX软件求解该混合整数规划问题。最后通过算例验证了所提出的优化模型可以降低含电池交换站的孤岛直流微电网的运行成本,提高风力和光伏的利用率。In order to improve the economic performance of DC microgrid and tackle the problems of limited driving range and long charging time of electric vehicles,an island operation optimization model of DC microgrid with battery swap station(BSS)is proposed.An economic dispatching model is established with daily operation cost of DC microgrid,pollution control cost and daily operation cost and constraint of battery switching station as the targets. Uncertainties of renewable energy generation including wind energy and solar energy are taken into account,and robust programming is used to model and hedge against uncertainties. The problem is modeled as a mixed integer linear programming,whose global optimal solution can be obtained by CPLEX platform. Finally,an case study is conducted to verify that the optimization model proposed in this paper can reduce the operation cost of isolated dc micro-grid including battery swap station and improve the utilization rate of wind power and photovoltaic output power.

关 键 词：直流微电网 电池交换站 分布式电源 鲁棒优化 经济调度 

分 类 号：TM732[电气工程—电力系统及自动化]