摘要
发展微电网是合理利用可再生能源的重要途径,储能系统在协调微电网中多类型能源并实现高效的协同优化过程中发挥了重要的作用。本文构建了同时考虑分布式储能系统(distributed energy storage systems,DESSs)和集中式储能系统(centralized energy storage system,CESS)的微电网负荷优化调度模型,该模型同时考虑了微电网的经济成本和稳定性,旨在降低微电网经济成本的同时增加微电网的稳定性。同时,提出的调度模型考虑了需求响应的影响。实验表明,与只有单一DESSs的微电网相比,同时含有DESSs和CESS的微电网可以进一步地降低微电网的经济成本,并提高微电网的稳定性。而微电网通过参与需求响应能够实现更低的经济成本和更高的稳定性。此外,研究发现经济成本和稳定性权重因子对微电网调度的影响,权重因子的选取是微电网经济性和稳定性之间的权衡,提出了兼顾微电网经济性与稳定性的最优解的求解方法。本文的研究对于具有DESSs和CESS的微电网的经济稳定运行具有重要的现实意义。
The development of microgrid is an important way for rational utilization of renewable energy.Energy storage system(ESS)plays an important role in the process of coordinating multiple energy sources and achieving efficient collaborative optimization of microgrid.An optimal load dispatch model is constructed for microgrid,in which both distributed and centralized energy storage systems are considered.And demand response(DR)are considered in the proposed model.The proposed optimal load dispatch model comprehensively considers the economic cost and stability of the microgrid,thereby ensuring the stability of the microgrid while reducing the economic cost of the microgrid at same time.The proposed optimization problem is formulated as a mixed integer linear programming(MILP)problem,which is solved efficiently using commercial solver CPLEX.In the experimental part,the impacts of different ESSs and DR on the economic cost and stability of the microgrid load dispatch process are discussed.The results show that the microgrid with distributed energy storage systems and centralized energy storage system can effectively reduce the economic cost of the microgrid and improve the stability of the microgrid.And the results reveal that the implementation of DR can further reduce the economic cost and improve the stability of microgrid.In addition,the experiment deeply explores the impact of the economic cost and stability weight factors on the objective function.The results show that the selection of the weight factors is a trade-off between the economy and stability of the microgrid,the best compromise between economic cost and stability is calculated in this paper.The research in this paper has important practical significance for the economic and stable operation of microgrid with distributed and centralized energy storage systems.
作者
殷辉
陆信辉
周开乐
YIN Hui;LU Xin-hui;ZHOU Kai-le(School of Management,Hefei University of Technology,Hefei 230009,China;Key Laboratory of Process Optimization and Intelligent Decision-making,Ministry of Education,Hefei 230009,China;Anhui Key Laboratory of Philosophy and Social Sciences of Energy and Environment Smart Management and Green Low Carbon Development,Hefei University of Technology,Hefei 230009,China)
出处
《中国管理科学》
CSSCI
CSCD
北大核心
2023年第2期118-128,共11页
Chinese Journal of Management Science
基金
国家自然科学基金资助项目(72242103,71822104,72271071,72201084)
安徽省自然科学基金资助项目(2008085UD05)
中央高校基本科研业务费专项资金资助项目(JZ2022HGPB0305)。
关键词
微电网
负荷优化调度
分布式储能系统
集中式储能系统
需求响应
microgrid
optimal load dispatch
distributed energy storage systems
centralized energy storage system
demand response
