实时市场中电价多解的判定机理  

Judgment Mechanism of Multiple Solutions for Electricity Price in Real-time Market

作　　者：刘畅[1,2] 冯冬涵[1,2] 方陈[3] LIU Chang;FENG Donghan;FANG Chen(School of Electronic Information and Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Key Laboratory of Control of Power Transmission and Conversion,Ministry of Education,Shanghai Jiao Tong University,Shanghai 200240,China;Electric Power Research Institute of State Grid Shanghai Municipal Electric Power Company,Shanghai 200437,China)

机构地区：[1]上海交通大学电子信息与电气工程学院,上海市200240 [2]电力传输与功率变换控制教育部重点实验室,上海交通大学,上海市200240 [3]国网上海市电力公司电力科学研究院,上海市200437

出　　处：《电力系统自动化》2020年第1期43-52,共10页Automation of Electric Power Systems

基　　金：国家自然科学基金项目(51677115);上海市浦江人才计划(17PJD018);上海交通大学晨星优秀青年学者奖励计划资助~~

摘　　要：电价多解情况的出现将为实时市场的出清带来困难,有必要从理论上对其发生条件进行研究,并建立高效判定方法以提高实时定价效率。文中对节点电价多解情况的判定机理进行了深入分析和研究,基于市场出清问题的物理特性和数学特征,提出了退化、对偶问题多解与节点电价多解三者之间明确而严格的数学关系,基于所获判定机理建立了电价多解情况的完整有效判定流程,最终利用算例进行了判定方法对比以及有效性与适应性验证。The emergence of multiple solutions for electricity price will bring difficulties to the clearing of the real-time market. It is necessary to theoretically study the occurrence conditions of happening and establish high efficient judgment method to improve real-time pricing efficiency. In this paper, the judgment mechanism of multiple solutions for electricity price is deeply analyzed and studied. Based on the physical and mathematical characteristics of market clearing problems, a clear and strict relationship between degeneracy, dual problem and multiple solutions of nodal electricity price is proposed. According to the obtained judgment mechanism, a complete and effective judgment process of the multiple solutions for electricity price is established. Finally, the comparison of the judgment methods and the validity and adaptability verification are carried out by the case study.

关 键 词：节点电价 退化 对偶问题多解 电价多解 判定流程 

分 类 号：TM73[电气工程—电力系统及自动化]