金溪流域梯级电站短期发电计划编制  

Short-term generation planning of cascade hydropower station in Jinxi River Basin

作　　者：王超杰 郭绘娟 刘志佳 WANG Chaojie;GUO Huijuan;LIU Zhijia(Fujian Huadian Jinhu Electric Power Co.Ltd.,Sanming,Fujian 353300,China;College of Energy and Electrical Engineering,Hohai University,Nanjing,Jiangsu 211100,China;Huadianfu New Energy Co.Ltd.,Chitan Hydraulic Power Plant,Sanming,Fujian 354400,China)

机构地区：[1]福建华电金湖电力有限公司,福建三明353300 [2]河海大学能源与电气学院,江苏南京211100 [3]华电福新能源股份有限公司池潭水力发电厂,福建三明354400

出　　处：《排灌机械工程学报》2021年第2期132-138,共7页Journal of Drainage and Irrigation Machinery Engineering

摘　　要：为了更好地解决非线性、非凸、多约束、复杂时空耦合等导致的梯级水电站调度问题,降低耗水率,提高整个梯级水电站群的经济效益和运行水平,以金溪流域为研究对象,充分考虑了电网需求、机组安全等约束条件,融合逐步优化动态规划算法与智能算法,实现日发电计划的精细化编制,并与实际运行情况进行对比.分析结果可以看出,采用优化算法(POA)进行优化调度后,水电站发电量有了一定幅度的提高,电量增加幅度在2.7%~3.4%.研究了梯级电站的厂内负荷分配与机组组合的问题.基于系统工程理论与优化算法,建立了满足水电网电力输电安全约束、设备安全管理等多目标的机组开停机和负荷调节优化模型,以耗水率最小为目标将负荷分解到电站各机组,计算各时段机组出力过程.在实际运行中,电站超出日发电计划出力,在偏差考核范围内尽量满发,通过算例验证了模型的可行性和合理性.In order to solve the cascade hydropower station scheduling problems caused by nonlinear,non-convex,multi-constrained,and complex time-space coupling,reduce the water consumption rate,and improve the economic benefits and operation level of the entire cascade hydropower station group,the Jinxi River Basin was taken as the research object,the constraints such as power grid requirements and unit safety were fully considered,dynamic planning algorithms and intelligent algorithms were integrated and gradually optimized to achieve the refined preparation of the daily power generation plan.Compared with the actual operation results,it can be seen that after the optimization algorithm is used for optimal dispatching,the hydropower station generates electricity.The amount of electricity has been increased to a certain extent,and the increase of electricity is about 2.7%to 3.4%.Based on the system engineering theory and optimization algorithms,the in-plant load distribution and unit combination problems of cascade hydropower stations were studied.Based on system engineering theory and optimization algorithms,an optimization model of unit start-up and shutdown and load adjustment to meet the multi-objective constraints of hydropower transmission safety and equipment safety management was established.The target was the minimum water rate.The load was decomposed to each unit of the power station,and the unit power output process was calculated.In actual operation,the power station exceeds the daily power generation output,and it is fully used within the deviation assessment range.The feasibility and rationality of the model are verified by the above example.

关 键 词：梯级水电站群 优化运行 短期 POA算法 厂内经济运行 动态规划算法 

分 类 号：S277.9[农业科学—农业水土工程]