摘要
电力市场环境下是否应由发电公司自主确定机组的检修计划仍存争议。相比计划经济体制下以系统可靠性为单一优化目标的检修计划,由发电公司安排各自的检修计划只保证对系统运行的可行性而不保证最优性,可能给系统运行带来风险。重点研究了中长期合同竞价市场环境下发电公司自主安排检修计划对系统运行的影响。借助综合机组竞价和检修策略的博弈论方法模拟检修行为,评估系统运行的可靠性和经济性。相比垂直管理模式下的检修方案,中长期合同竞价市场下的机组检修行为可能恶化系统运行的可靠性和经济性。另外,需要警惕发电公司故意延长检修时长抬高电网购电价格的问题,并关注竞争电量和竞价上限不合理设置时小容量机组检修导致的高市场出清电价的可能性。
The question of whether power generation companies should determine unit maintenance scheduling (UMS) remains controversial.Compared with the method under planned economy,in which system reliability alone is optimized,the maintenance plan declared by power companies may introduce risks to system operation since it guarantees only feasibility but not optimality.This paper focuses on the impact of self-determined UMS on system operation in the medium-to long-term contract bidding market.A method based on the game theory of unit bidding and maintenance strategy is proposed to simulate the maintenance behavior of units.Based on the results,the reliability and economic performance of the method are evaluated.The performance is better than that under vertical management mode.In addition,the method addresses the problem of power companies deliberately extending maintenance time in an attempt to raise the electricity price.We also found that a surge in electricity price occurs when only a small proportion of units are maintained,which is related to the unreasonable setting of competitive energy and auction cap.
作者
林弋莎
鲁宗相
乔颖
马明
LIN Yisha;LU Zongxiang;QIAO Ying;MA Ming(State Key Lab of Control and Simulation of Power Systems and Generation Equipment,Department of Electrical Engineering,Tsinghua University,Haidian District,Beijing 100084,China;State Grid Gansu Electric Power Company,Lanzhou 730070,Gansu Province,China)
出处
《全球能源互联网》
2020年第3期272-279,共8页
Journal of Global Energy Interconnection
基金
甘肃省青年科技基金计划项目(18JR3RA011)
甘肃省重大专项(17ZD2GA010)
国网甘肃省电力公司科技项目(52272716000K)。
关键词
中长期合同竞价市场
机组检修
博弈论
系统运行
medium-to long-term contract bidding market
unit maintenance scheduling
game theory
system operation
作者简介
林弋莎(1996),女,博士研究生,主要研究方向为新能源、多能互补,E-mail:lys_ncepu@126.com。;通信作者:鲁宗相(1974),男,博士,副教授,主要研究方向为电力系统可靠性、风电/太阳能发电并网分析与控制、分布式电源及微电网、能源与电力宏观规划。E-mail:luzongxiang98@tsinghua.edu.cn。;乔颖(1981),女,博士,副教授,主要研究方向为新能源、分布式发电、电力系统安全与控制,E-mail:qiaoying@tsinghua.edu.cn。;马明(1983),男,工程师,主要研究方向为电力系统运行及新能源发电,E-mail:mingwq@qq.com。
