文章摘要
张粒子,刘方,许通,等.多运营主体梯级水电站参与的日前市场出清模型[J].电力系统自动化,2018,42(16):104-110. DOI: 10.7500/AEPS20180104005.
ZHANG Lizi,LIU Fang,XU Tong, et al.Clearing Model for Day-ahead Market with Participation of Multi-operator Cascade Hydropower Stations[J].Automation of Electric Power Systems,2018,42(16):104-110. DOI: 10.7500/AEPS20180104005.
多运营主体梯级水电站参与的日前市场出清模型
Clearing Model for Day-ahead Market with Participation of Multi-operator Cascade Hydropower Stations
DOI:10.7500/AEPS20180104005
关键词: 梯级水电站  日前市场  市场出清模型  水力耦合关系  水流时滞
KeyWords: cascade hydropower station  day-ahead market  market clearing model  hydraulic coupling relationship  flow delay
上网日期:2018-07-16
基金项目:国家自然科学基金资助项目(51277071);中央高校基本科研业务费专项资金资助项目(2017XS033);国家能源局科技项目“西南水电智能调度及合理消纳机制研究”
作者单位E-mail
张粒子 华北电力大学电气与电子工程学院, 北京市 102206  
刘方 华北电力大学电气与电子工程学院, 北京市 102206 liufang_NCEPU@163.com 
许通 华北电力大学电气与电子工程学院, 北京市 102206  
蔡华祥 昆明电力交易中心有限责任公司, 云南省昆明市 650011  
蒋燕 云南电力调度控制中心, 云南省昆明市 650011  
徐宏 云南电网有限责任公司玉溪供电局, 云南省玉溪市 653100  
摘要:
      中国普遍存在梯级水电上、下游电站隶属不同运营主体的现象,各电站独立参与现货市场竞价时,调节性能欠佳的下游电站可发电量由上游电站中标电量决定,面临中标电量与实发电量匹配失衡的问题,导致交易结果难以执行,不利于市场稳定和水电资源利用。为此,文中研究了多运营主体流域梯级水电站参与的日前市场出清模型,下游电站作为价格接受者,需申报电量,其电量通过上、下游电站水力耦合关系,表示为关于上游电站申报电量的线性函数,嵌入日前出清优化模型,实现上、下游电站联合出清。重点探讨上、下游电站之间水流时滞对下游电站运行的影响,并在日前市场出清中予以考虑。最后,以包含6家发电商和8家购电商的系统为例,模拟日前市场竞价场景,结果表明:该出清模型能有效缓解下游电站独立参与电力市场面临的发电量匹配失衡问题。
Abstract:
      The phenomenon that upstream and downstream stations of cascade hydropower subordinate to different operators is widespread in China. When independently participating in spot market bidding, downstream stations with poor regulation, whose power generation is determined by upstream power stations, will face the problem of imbalance between bidding quantity and real quantity, resulting in difficulty of executing the transaction result, and which is detrimental to market stability and water resources utilization. Therefore, a day-ahead market clearing model with multi-operator cascade hydropower stations participating is proposed, in which, the downstream station is a price-taker with no need for declaring the power generation, and its bidding quantity is represented as a linear function about upstream station's bidding quantity. According to hydraulic coupling relationship of upstream and downstream stations, the linear function is embedded into the day-ahead clearing optimal model to realize joint clearing of upstream and downstream stations. The effect of water flow delay between upstream and downstream stations to downstream stations is mainly discussed and considered in the day-ahead market clearing process. Finally, taking a system with 6 generators and 8 electricity purchasers as an example, the bidding scenario of day-ahead power market is simulated. The result indicates that the imbalance of power generation faced by downstream station participating in power market independently can be alleviated by the proposed clearing model.
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