高比例水电电力市场日前现货出清方法  

Day-ahead Clearing Method for High-proportion Hydropower Electricity Market

作　　者：张扬 申建建[1] 赵启浩 谢蒙飞 贾泽斌 ZHANG Yang;SHEN Jianjian*;ZHAO Qihao;XIE Mengfei;JIA Zebin(Institute of Hydropower&Hydroinformatics,Dalian University of Technology,Dalian 116024,China;Kunming Power Exchange Center Co.,Ltd.,Kunming 650011,China)

机构地区：[1]大连理工大学水电与水信息研究所,辽宁大连116024 [2]昆明电力交易中心有限责任公司,云南昆明650011

出　　处：《人民珠江》2023年第11期41-51,共11页Pearl River

基　　金：国家自然科学基金(52079014)。

摘　　要：如何处理梯级水电时空水力、电力紧耦合等复杂特性,解决竞争性弃水、发电能力不足等问题,是高比例水电日前现货市场出清中的关键问题。结合云南实际工程,提出高比例水电电力市场日前现货出清方法,以事后水力校核环节替代出清模型中的水力约束,根据弃水、欠发问题产生原因,构建了包括梯级电站日电量约束、弃水约束在内的条件约束集及相应触发条件;引入、更新相关边界控制约束,迭代解决出清过程中的弃能、上下游匹配失衡问题,实现模型的高效求解;设计了结算补偿策略以弥补弃水处理对其他电站的利益损失。以云南电网实际发电数据进行模拟计算,结果表明该方法能够有效解决发电量匹配失衡、竞争性弃水问题,且实现了较高的求解效率。How to handle the complex characteristics of cascade hydropower and solve the competitive spillage and power shortage problem is one of the key issues in the clearing of the high-proportion hydropower day-ahead spot electricity market.Therefore,combined with the project in Yunnan,this paper proposes a day-ahead clearing method for the high-proportion hydropower electricity market.In this method,the hydraulic constraints in the clearing model are replaced by the post-hydraulic check.Combined with the essential causes of competitive spillage and power shortage problems,the paper constructs a conditional constraint set including cascaded hydropower linkage constraints and spillage control constraints,and corresponding trigger conditions respectively.Moreover,the constraint boundaries are dynamically updated to gradually reduce competitive spillage and power shortage in the iterative solution procedure.A settlement compensation strategy is finally designed to provide corresponding benefits for plants involved in solving the spillage.The proposed method is validated by a real-world hydropower-dominated provincial system ranking second in China.The results show that competitive spillage and power shortage can be avoided or reduced substantially.It is demonstrated that this method meets the requirements of practicability and timeliness for day-ahead spot clearing of hydropower-dominated provincial power systems.

关 键 词：现货市场 高比例水电系统 弃水 出清 梯级水电 

分 类 号：TV211.14[水利工程—水文学及水资源]