考虑需求侧管理和DG渗透率的主动配电网网架双层规划研究  

Bilevel planning of active distribution networks considering demandside management and DG penetration

作　　者：李雪[1] 单炜璐 杜大军[1] 费敏锐[1] Xue LI;Weilu SHAN;Dajun DU;Minrui FEI(Shanghai Key Laboratory of Power Station Automation Technology,School of Mechatronic Engineering and Automation,Shanghai University,Shanghai 200072,China)

机构地区：[1]上海大学机电工程与自动化学院上海市电站自动化技术重点实验室,上海200072

出　　处：《中国科学：信息科学》2018年第10期1333-1347,共15页Scientia Sinica(Informationis)

基　　金：国家自然科学基金(批准号:61773253;61633016);上海市科学技术委员会(批准号:15JC1401900;15220710400)资助项目

摘　　要：大规模分布式电源(distributed generations, DGs)并网,使得传统配电网向主动配电网发展,这对主动管理模式下配电网网架规划提出了新的挑战.本文考虑需求侧管理,建立了含DGs的主动配电网网架双层规划模型.上层规划模型以年网络综合费用最小为目标,并且考虑DG渗透率以及风力发电机和光伏发电机装机容量占比不同对配电网网架规划的影响,建立了配电网网架规划模型;下层模型在上层网架规划的基础上,计及风力、光伏发电以及负荷的不确定性,并对DGs的出力和可中断负荷中断量进行优化;通过上下层联动,分别采用改进单亲遗传算法和原对偶内点法对双层规划模型进行优化求解.以29节点配电网为例,仿真结果表明考虑需求侧管理能够得到更优的网架方案,减少年网络综合费用、改善系统节点电压分布,并且通过调节DG渗透率和风机光机容量占比可以进一步优化网架方案,使网架规划成本达到更小.The integration of large-scale distributed generations （DGs） in power grids has enabled the movement of the traditional distribution network toward the active distribution network. However; this transition poses new challenges to the planning of distribution network frameworks under active management mode. The proposed work addressed these challenges by proposing a bilevel planning model of active distribution network frameworks with DGs that considers demand-side management. In the bilevel model; considering the influence of DG penetration level and the installed capacity of wind turbine generator and photovoltaic generator on the planning of distribution network; the upper distribution network planning model is established by taking lowest annual comprehensive cost as the upper-level objective. Then; the lower level model optimized DG curtailment and interruptible load shedding by accounting for the uncertainty of load and the intermittent DG output of wind farms and photovoltaic generators. The above models were solved through an improved pertheno-genetic algorithm and prime-dual interior point method. Finally; case studies were conducted on a 29-bus distribution network. Simulation results showed that by considering demand-side management; the network framework scheme and node voltage of the distribution network improved and the annual comprehensive cost decreased. By adjusting the DG penetration and installment capacity proportion of the wind turbine generator ; the network planning scheme can be further optimized to minimize the annual comprehensive cost.

关 键 词：主动配电网 分布式发电 网架规划 双层规划 需求侧管理 DG渗透率 

分 类 号：TM715[电气工程—电力系统及自动化]