摘要
为更全面准确地评价不同水电站或同一水电站不同年份的优化调度工作,在原有考核指标的基础上,补充提出了节水增发程度指标,讨论了优化模型与径流预报信息对节水增发工作的价值,并以甲、乙两水电站为例分析了指标的有效性及两水电站的随机模型价值(V_(SS))和完全信息价值(E_(VPI))。算例分析表明,节水增发程度指标能有效评估水电站优化提升空间及水电站优化程度;通过评价水电站随机模型价值(V_(SS))和完全信息价值(E_(VPI)),可确定优化模型及径流预报信息对提升水电站发电量的最大贡献裕度,有利于提升水电站增发工作效率。
For achieving more comprehensive and accurate evaluation in the optimization work of different hydropower stations or the same hydropower stations in different years,this paper proposed an supplementary index named degree of optimization based on the existing assessment index,discussed the value that the optimization model and the runoff forecast information acted to the work of water saving and power generating increase,and analyzed the effectiveness of the index and V_(SS) and E_(VPI) by taking two plants for an example.The example analysis shows that the index of degree of optimization can evaluate the optimization space and the degree of optimization availably,and evaluating V_(SS) and E_(VPI) of plants can confirm the maximum contribution margin of the optimized model and the runoff forecast information promoting the power generation of the plant,which is beneficial to improve the efficiency of the work of water saving and power generating increase.
出处
《水电能源科学》
北大核心
2017年第10期157-159,103,共4页
Water Resources and Power
基金
国家自然科学基金项目(51379081)
国家电网公司科技项目(DKJS-13-00220)
关键词
节水增发空间
节水增发程度
VSS
EVPI
评估方法
space of water saving and power generating increase
optimization rate
VSS
EVPI
evaluation method
