考虑线路边际价值和用户时空信息的输电定价方法  

Transmission pricing method considering the marginal values of lines and spatial‑temporal information of users

作　　者：施磊 单兰晴 栗向鑫 许庆宇 刘学[3] SHI Lei;SHAN Lanqing;LI Xiangxin;XU Qingyu;LIU Xue(North China Branch of State Grid Corporation of China,Beijing 100053,China;Energy Internet Research Institute,Tsinghua University,Beijing 100084,China;State Key Laboratory of Power System Operation and Control,Department of Electrical Engineering,Tsinghua University,Beijing 100084,China)

机构地区：[1]国家电网有限公司华北分部,北京100053 [2]清华大学能源互联网创新研究院,北京100084 [3]清华大学电机系新型电力系统运行与控制全国重点实验室,北京100084

出　　处：《电力科学与技术学报》2023年第6期1-11,共11页Journal of Electric Power Science And Technology

基　　金：国家自然科学基金(92047302);国家电网有限公司科技项目(SGNC0000CWJS2100229)。

摘　　要：输配电价改革是实现“管住中间、放开两头”电力体制改革的重要任务。科学合理的输配电价形成机制,对营造公平有序的电力市场环境以及促进电力资源的优化配置具有重要意义。为此,提出考虑线路边际价值和用户时空信息的输电定价方法。首先,将线路成本拆分为反映线路边际价值的扩容成本和剩余成本两部分进行回收;其次,扩容成本不含主观假设而是基于经济学原理客观得到,通过计算节点边际电价机制下电力现货市场出清阻塞盈余求解;然后,剩余成本通过分布因子法和邮票法以各节点对输电线路的使用程度进行分摊;最后,基于3节点系统和IEEE 30节点系统对所提出的输电定价方法进行有效性验证。The reform of transmission and distribution(T&D)pricing is a crucial task in achieving the"control the middle,unleash both ends"electricity system reform.A scientifically and reasonably formed transmission and distribution pricing mechanism is of significant importance in creating a fair and orderly electricity market environment and promoting the optimal allocation of electricity resources.In this regard,a transmission pricing method that takes into account the marginal value of lines and spatial-temporal information of users is proposed.Firstly,the cost of the transmission lines is decomposed into two parts:expansion cost reflecting the marginal value of the lines and residual cost,both of which are recovered.Secondly,the expansion cost is devoid of subjective assumptions and is objectively derived based on economic principles.It is determined through the computation of congestion surplus revenue in the electricity spot market clearing under the marginal electricity pricing mechanism at nodes.Next,the residual cost is allocated according to the usage of the transmission lines at each node using the distribution factor method and postage stamp method.Finally,the proposed transmission pricing method is validated for effectiveness using both a 3-node system and the IEEE 30-node system.

关 键 词：电力市场 输电定价方法 线路边际价值 节点边际电价 

分 类 号：TM863[电气工程—高电压与绝缘技术]