基于配网运行裕度的光伏最佳接入容量评估  

Evaluation on Optimal Photovoltaic Integration Capacity Based on Operation Margin of Distribution Network

作　　者：鞠冠章 李顺昕 赵敏 景锐鹏 JU Guanzhang;LI Shunxin;ZHAO Min;JING Ruipeng(State Grid Jibei Electric Power Company Limited,Beijing 100054,China;Economic and Technological Research Institute,State Grid Jibei Electric Power Company Limited,Beijing 100038,China;Key Laboratory of Smart Grid of Ministry of Education,Tianjin University,Tianjin 300072,China)

机构地区：[1]国网冀北电力有限公司,北京100054 [2]国网冀北电力有限公司经济技术研究院,北京100038 [3]天津大学智能电网教育部重点实验室,天津300072

出　　处：《电力系统及其自动化学报》2023年第11期66-73,共8页Proceedings of the CSU-EPSA

基　　金：冀北电力公司科技项目(SGJBJY00GPJS2200027)。

摘　　要：合理的光伏安装方案有利于降低配电系统的供电成本和提高能源利用率,因此需要根据供电经济性指标确定配网中分布式光伏的最佳接入容量。提出一种基于配网运行裕度的光伏最佳接入容量评估方法。该方法利用配网运行裕度信息,把高维的光伏多节点并网优化问题降至1维的光伏总接入容量优化,且利用分布式调度实现了不同主体的协同运行。通过对改进的IEEE 33节点系统开展算例分析发现,根据所提方法确定的光伏最佳接入容量超过了配网最大负荷与线路容量之和,为高比例分布式光伏接入配电网奠定了理论基础。Since a reasonable photovoltaic(PV)installation scheme is conducive to reducing the power supply cost of distribution system and improving the energy utilization rate,it is necessary to determine the optimal integration capaci⁃ty of distributed PV in distribution network according to the power supply economic indicator.In this paper,an evalua⁃tion method for the optimal PV integration capacity based on the operation margin of distribution network is proposed.The operation margin information is used to reduce the problem of high-dimensional PV multi-bus integration optimiza⁃tion to 1-dimensional total PV integration capacity optimization.In addition,a distributed dispatching strategy is used to realize the coordinated operation of different agents.An improved IEEE 33-bus system is taken as a numerical exam⁃ple,and it is found that the optimal PV integration capacity determined by the proposed method exceeds the sum of the maximum load and line capacity of distribution network,laying a theoretical foundation for the integration of high-pro⁃portion distributed PV to distribution network.

关 键 词：分布式光伏 单位电能供电成本 最佳接入容量 运行裕度 初始分配方法 分布式调度 

分 类 号：TM93[电气工程—电力电子与电力传动]