摘要
“双碳”目标引导下的清洁型电网建设,将面临大规模风光电消纳的严峻挑战。为此,以梯级水电为调节电源进行“风光波动平抑+电网负荷跟踪”,该文构建风光水联盟与区域电网联合运行的4阶段优化调度模型。第1阶段,入网前风光波动平抑。构建梯级水电平抑风光波动均方差最小和平抑费用最小优化模型。第2阶段,入网后电网负荷跟踪。构建区域电网与风光水联盟主从博弈调度模型。区域电网以风光水出力跟踪负荷误差最小和综合成本最低为目标,制定出清电价;风光水联盟制定联盟报价及售电计划,最大化联盟效益。第3阶段,联盟成员利润分配。构建纳什议价利润分配模型,实现内部补偿电价优化及成员利润提升。第4阶段,波动调节功率在各级电站优化分配。采用库恩–塔克条件(Karush-Kuhn-Tucker,KKT)等方法求解。结果表明所提方法能有效提高电网新能源消纳占比和联盟成员利润,降低火电占比。
The construction of clean grid under the guidance of“carbon peak and carbon neutrality”goal will face the severe challenge of large-scale wind power consumption.To this end,cascade hydropower is used as the regulating power source to carry out“wind-wave smoothing+grid load tracking”,and a four-stage optimal scheduling model for the joint operation of“wind-solar-water”alliance and regional power grid is constructed.The first stage:wind-solar power fluctuation smoothing before entering the grid.An optimization model is established to minimize the mean square error of the wind-solar power fluctuation and the suppression cost of the cascade hydropower regulation.The second stage:grid load tracking.A master-slave game optimal scheduling model for regional power grid and“wind-solar-water”alliance is constructed.As the leader,the regional power grid formulates the clearing price to minimize the load tracking error of“wind-solar-water”output and the comprehensive cost;and“wind-solar-water”alliance formulates quotation and electricity sales plan,to achieve the maximum benefits of the alliance.The third stage:profit distribution of alliance members.Nash bargaining profit distribution model is constructed to optimize the internal compensation price and improve the profit of members.The fourth stage:optimize the distribution of the fluctuation regulating power at all levels of hydropower stations.Methods such as KKT transformation are used to solve the four-stage models.The results show that the proposed method can effectively improve the proportion of new energy consumption in regional power grid and the profits of alliance members,and reduce the thermal power proportion.
作者
李咸善
杨拯
李飞
程杉
LI Xianshan;YANG Zheng;LI Fei;CHENG Shan(Hubei Provincial Key Laboratory of Operation and Control of Cascade Hydropower Stations(China Three Gorges University),Yichang 443002,Hubei Province,China)
出处
《中国电机工程学报》
EI
CSCD
北大核心
2023年第6期2234-2247,共14页
Proceedings of the CSEE
基金
国家自然科学基金项目(51607105)
湖北省技术创新重大项目(2017AAA132)。
关键词
新能源消纳
梯级水电站
绿证考核
主从博弈
KKT条件
纳什议价
new energy consumption
cascade hydropower stations
green certificate assessment
master-slave game
KKT conditions
Nash bargaining
作者简介
李咸善(1964),男,博士,教授,博士生导师,主要从事新能源微电网运行与控制,新能源与梯级水电站联合运行优化调度,水电站仿真与控制等方面的研究工作,lixianshan@ctgu.edu.cn;通信作者:杨拯(1997),男,硕士研究生,研究方向为新能源与梯级水电联合运行优化调度,202008580021226@ctgu.edu.cn。
