平抑负荷峰谷差的配电网协同控制技术研究  

Research on Collaborative Control Technology of Distribution Network to Reduce Load Peak-valley Difference

作　　者：贾东梨[1] 杨晓雨 叶学顺 JIA Dongli;YANG Xiaoyu;YE Xueshun(China Electric Power Research Institute Co.,Ltd.,Beijing 100192,China)

机构地区：[1]中国电力科学研究院,北京100192

出　　处：《山东电力技术》2025年第4期49-57,共9页Shandong Electric Power

基　　金：国家电网有限公司总部科技项目“适应海量分布式能源接入的新型农村电网经济低碳调控关键技术研究与开发”(1400-202155508A-0-5-ZN)。

摘　　要：风能等新能源发电具有不确定性和波动性,大规模接入电网后呈现出反调峰特性,如何在实现可再生能源消纳的同时充分挖掘配电网各台区的调节潜力平抑负荷峰谷差成为亟须解决的问题。首先提出了配电网各台区可调度容量的量化方法,充分挖掘台区内以储能为代表的灵活性资源调节能力,最大化台区可向其他台区或配电网的支援功率;之后以电网总负荷峰谷差最小和运行成本最小为目标函数,将各台区视为整体,统筹考虑各台区可调度容量的灵活转移,建立考虑储能等可调节设备的平抑负荷峰谷差的配电网协同控制模型,并将模型中的非线性部分转化为二阶锥形式,以获得全局最优解;最后,基于我国某县域配电网的实际数据进行仿真验证,证明了所提模型计算各台区可调度容量及平抑负荷峰谷差的准确性及有效性。Renewable energy sources such as wind power exhibit uncertainty and variability,and shows the characteristics of anti-peak regulation after large-scale access to the grid.How to realize the absorption of renewable energy and fully tap the regulation potential of each station area of the distribution network to smooth the load peak valley difference has become an urgent problem to be solved.In this paper,the quantification method of dispatchable capacity of each station area of distribution network is proposed to fully tap the flexible resource adjustment ability represented by energy storage in the station area and maximize the support power of the station area to other stations or distribution network.Then,taking the minimum peak-valley difference and the minimum operating cost of the total load as the objective function,each station area is regarded as a whole,and the flexible transfer of the dispatchable capacity of each station area is considered as a whole.A collaborative control model of the distribution network is established to smooth the peak-valley difference of the load considering the adjustable equipment such as energy storage,and the nonlinear part of the model is transformed into a second-order cone form to obtain the global optimal solution.Finally,based on the actual data of a county distribution network in China,the simulation proves the accuracy and effectiveness of the proposed model in calculating the dispatchable capacity and reducing load peak-valley difference.

关 键 词：调峰 安全经济运行 可调度容量 负荷峰谷差 

分 类 号：TM73[电气工程—电力系统及自动化]