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实时市场中电价多解的判定机理
作者:
作者单位:

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

作者简介:

刘畅(1995—),男,硕士研究生,主要研究方向:电力市场。E-mail:liuchang301@sjtu.edu.cn
冯冬涵(1981—),男,通信作者,教授,博士生导师,主要研究方向:电力市场。E-mail:seed@sjtu.edu.cn
方陈(1983—),男,博士,高级工程师,博士生导师,主要研究方向:能源互联网多能互补规划与运行、分布式能源、储能、电动汽车、微电网规划与运行等。E-mail:fangc02@139.com

通讯作者:

基金项目:

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。


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

1.School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;2.Key Laboratory of Control of Power Transmission and Conversion, Ministry of Education,Shanghai Jiao Tong University, Shanghai 200240, China;3.Electric Power Research Institute of State Grid Shanghai Municipal Electric Power Company, Shanghai 200437, China

Fund Project:

This work is supported by National Natural Science Foundation of China (No. 51677115), Shanghai Pujiang Program (No. 17PJD018) and Morningstar Excellent Young Faculty Program of the Shanghai Jiao Tong University.

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    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。

    Abstract:

    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.

    表 1 机组/负荷基本参数Table 1 Basic parameters of units/loads
    表 3 调整后的机组/负荷基本参数Table 3 Basic parameters of units/loads after adjusted
    表 2 最优单纯形表Table 2 Optimal simplex tableau
    图1 电价多解情况示例Fig.1 Examples of multiple price solutions
    图2 退化、对偶问题多解与节点电价多解关系Fig.2 Relationships among degeneracy, multiplesolutions of coupling problems and node electricity price
    图3 节点电价多解完整判定流程图Fig.3 Flow chart of complete judgment process of multiple solutions of electricity price for node
    图4 三节点系统Fig.4 Network topology of 3-node system
    图5 两节点系统的网络拓扑和基本信息Fig.5 Network topology and basic information
    表 5 各场景参数设置Table 5 Parameter settings of each scenario
    表 6 各场景电价多解情况Table 6 Multiple solutions of electricity price foreach scenario
    表 4 线路容量约束Table 4 Constraints of line capacity
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引用本文

刘畅,冯冬涵,方陈.实时市场中电价多解的判定机理[J].电力系统自动化,2020,44(1):43-52. DOI:10.7500/AEPS20190123011.
LIU Chang,FENG Donghan,FANG Chen.Judgment Mechanism of Multiple Solutions for Electricity Price in Real-time Market[J].Automation of Electric Power Systems,2020,44(1):43-52. DOI:10.7500/AEPS20190123011.

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历史
  • 收稿日期:2019-01-23
  • 最后修改日期:2019-07-25
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  • 在线发布日期: 2020-01-04
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