引用本文: | 肖异瑶,熊 宁,周晨曦,等.计及分布式电源的乡村地区变电站动态升压规划[J].电力系统保护与控制,2021,49(7):86-93.[点击复制] |
XIAO Yiyao,XIONG Ning,ZHOU Chenxi,et al.Booster planning considering dynamic development of load and distributed generator for substations in low-load density areas[J].Power System Protection and Control,2021,49(7):86-93[点击复制] |
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摘要: |
针对当前低密度负荷地区分布式电源(DG)渗透率不断提高、规划期内变电站电压等级过渡缺乏技术支撑的问题,提出了一种乡村地区有源配电网变电站升压改造规划模型。首先,针对35 kV变电站提前退役升压等情况,提出了35 kV变电站在原有站址升压改造或者在新址新建等场景的全寿命周期成本折算等年值的度量方法。其次,以规划期整体全寿命周期成本最优为目标,建立了一种计及DG渗透率的乡村地区变电站升压改造规划模型。再次,为考虑变电站新建或升压后其供电范围变化,提出了基于加权Voronoi图算法和遗传算法相结合的有源配电网低密度地区变电站动态升压规划求解方法,得到中间年各变电站新建与升压时序。最后,通过算例验证了所提方法的有效性和实用性。 |
关键词: 分布式电源 动态升压规划 全寿命周期成本 加权Voronoi图 配电网 遗传算法 |
DOI:DOI: 10.19783/j.cnki.pspc.200871 |
投稿时间:2020-07-21修订日期:2020-08-14 |
基金项目:国家自然科学基金资助项目(51807116) |
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Booster planning considering dynamic development of load and distributed generator for substations in low-load density areas |
XIAO Yiyao1,XIONG Ning2,ZHOU Chenxi3,ZHONG Shiyuan2,SHU Jiao2 |
(1. School of Electric Power Engineering, South China University of Technology, Guangzhou 510000, China;
2. Economics and Technology Research Institute of State Grid Jiangxi Electric Power Co., Ltd., Nanchang 330096, China;
3. Key Laboratory of Smart Grid (Tianjin University), Ministry of Education, Tianjin 300072, China) |
Abstract: |
There is a lack of method support for the transition of substation voltage level in the planning period in the circumstance where the Distributed Generation (DG) permeability continues to increase in rural areas. Thus a dynamic boost planning model and method for substations in low-load areas of an active distribution network are proposed. First, we take the situation of 35 kV substation decommissioning and voltage boost ahead of schedule. A measurement method is proposed to take the equivalent annual value of the whole life cycle cost conversion of the of 35 kV substation to be boosted in the existing site and the scene of the voltage boost. Secondly, aiming at the optimal overall life-cycle cost in the planning period, a mathematical model of rural substation booster planning with DG permeability is established. Thirdly, considering the variation of the power supply area after the substation is built or boosted, a dynamic boost planning method for rural substations of an active distribution network is proposed, and the time sequence of new substations and boost is obtained, based on a weighted Voronoi graph algorithm and a genetic algorithm. Finally, an example is given to verify the effectiveness and practicability of the method.
This work is supported by the National Natural Science Foundation of China (No. 51807116). |
Key words: distributed generation substation boost planning full life cycle cost weighted Voronoi diagram distribution network genetic algorithm |