基于NSGA-Ⅱ算法的硗碛水电站多目标调度研究  

Research on the Multi-objective Dispatching of Qiao-qi Hydropower Station Based on NSGA-Ⅱ Algorithm

作　　者：谢云东 章四龙 王红瑞[1] 付尔康 王丰 XIE Yun-dong;ZHNAG Si-long;WANG Hong-rui;FU Er-kang;WANG Feng(College of Water Sciences,Beijing Normal University 100088,China;Sichuan Huaneng Bao-xing River Hydropower Corporation Limited,Ya’an 625000,China)

机构地区：[1]北京师范大学水科学研究院,北京100875 [2]四川华能宝兴河水电有限责任公司,四川雅安625000

出　　处：《中国农村水利水电》2022年第3期207-211,共5页China Rural Water and Hydropower

基　　金：国家重点研发计划资助项目(2018YFC0407900);国家自然科学基金资助项目(51879010)。

摘　　要：为探索硗碛水电站发电与生态效益的矛盾关系,按照不同时间尺度的生态流量下泄方式,建立硗碛水电站年发电量与平均生态流量最大为目标的水库多目标优化调度模型。该模型以MATLAB的platEMO开源工具箱为基础平台,分别运行了基于年尺度与月尺度流量过程的Tennant法生成的生态放水模式,分析了两种模式下发电效益。结果发现:当生态流量为20%~30%多年平均流量的情况下,生态流量与年发电量的两种目标的Pareto最优面呈近似线性趋势;与实际生态流量相同的下泄情况下,得到最优发电量8.36亿kWh,较当年实际发电量增加0.21亿kWh;基于年尺度的生态放水模式较基于月尺度流量过程生态放水的模式更具有发电效益。In order to explore the contradictory relationship between power generation and ecological benefits of Qiao-qi Hydropower Station,this paper establishes a reservoir multi-objective optimization operation model with the goal of maximizing the annual power generation and average ecological flow of Qiao-qi Hydropower Station according to the ecological flow discharge methods of different time scales. The model is based on the platEMOopen source toolbox of MATLAB,and runs the ecological water release model generated by the Tennant method based on the annual and monthly flow processes,and analyzes the benefits of power generation in the two modes. The results indicate that when the ecological flow is 20%~30% of the average flow for many years,the Pareto surface of the two goals of ecological flow and annual power generation shows an approximately linear trend;the optimal power generation is obtained under the same leakage as the actual ecological flow. The amount of electricity is 836 million kWh,which increases by 21 million kWh compared to the actual power generation of the year;the ecological water release model based on the annual scale has more power generation benefits than the ecological water release model based on the monthly flow process.

关 键 词：生态调度 NSGA-Ⅱ 优化调度 硗碛水库 生态需水 

分 类 号：TV697.1[水利工程—水利水电工程]