引用本文:张晋铭,欧阳森,吴晗,辛曦,黄祎.计及配电网可靠性和运行经济性的电网侧储能优化配置[J].电力自动化设备,2024,44(7):62-68,85
ZHANG Jinming,OUYANG Sen,WU Han,XIN Xi,HUANG Yi.Optimal configuration of grid-side energy storage considering reliability and operation economy of distribution network[J].Electric Power Automation Equipment,2024,44(7):62-68,85
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计及配电网可靠性和运行经济性的电网侧储能优化配置
张晋铭, 欧阳森, 吴晗, 辛曦, 黄祎
华南理工大学 电力学院,广东 广州 510640
摘要:
针对储能提升系统可靠性和降低运行经济性的问题,提出一种综合考虑配电网可靠性和运行经济性的两阶段储能优化配置方法。在单一主电源供电可靠性模型的基础上,分别建立含储能系统单点接入、多点接入结构下的供电可靠性模型:阶段1以储能系统单点接入拓扑下的模型为规划对象,建立多目标规划运行双层模型,上层以储能容量投资成本、系统安全成本、统一时间尺度下的运行成本之和最小为优化目标,下层以综合运行成本之和最小为优化目标,同时考虑网络损耗、电能质量、负荷波动这3种运行成本,应用Gurobi工具包求解得到储能的规划运行方案;阶段2考虑新增供电线缆改造后的储能多点接入拓扑下的模型,以可靠性提升效益最大为优化目标,得到新增线缆规划方案。以修改的IEEE 33节点系统为算例,从不同的场景验证所提方法的有效性,并分析不同的停电风险价格对规划结果的影响。
关键词:  储能系统  可靠性  运行经济性  优化配置  两阶段优化  双层规划  配电网
DOI:10.16081/j.epae.202312044
分类号:TM715
基金项目:国家自然科学基金资助项目(52177085)
Optimal configuration of grid-side energy storage considering reliability and operation economy of distribution network
ZHANG Jinming, OUYANG Sen, WU Han, XIN Xi, HUANG Yi
School of Electric Power, South China University of Technology, Guangzhou 510640, China
Abstract:
Aiming at the problem that energy storage improves system reliability and reduces operation economy, a two-stage optimization configuration method of energy storage is proposed, which comprehensively considers the reliability and operation economy of distribution network. Based on the power supply reliability model of a single main power supply, the power supply reliability models of energy storage with single point access structure and multi-point access structure are established respectively. In the first stage, taking the model of energy system with the single point access structure as the planning object, a two-layer model of multi-objective planning and operation is established. The upper layer takes the minimum sum of energy storage capacity investment cost, system safety cost and operation cost under a unified time scale as the optimization goal, and the lower layer takes the minimum sum of comprehensive operating costs as the optimization goal, taking into account the three operation costs of network loss, power quality and load fluctuation. And the planned operation scheme of energy storage is solved by using the Gruobi toolkit. In the second stage, considering the model of energy storage multi-point access topology after the transformation of new power supply cables is considered and the new cable planning scheme is obtained with the goal of maximizing the efficiency of reliability improvement. Taking the modified IEEE 33-bus system as an example, the effectiveness of the proposed method is verified under different scenarios, and the influence of different power outage risk prices on the planning results is analyzed.
Key words:  energy storage system  reliability  operation economy  optimal configuration  two-stage optimization  bi-level planning  distribution network

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