摘要
水能计算是水电站运行调度与管理的核心,尤其是在水电站实际优化调度中,为寻求最合理的调度运行方案,水能计算要求更加准确。针对目前水能计算通常采用直接计算方法偏差很大且往往导致不合理决策的问题,以出力系数由定值转化为受调度决策变量影响的动态值为目标,在分析出力系数影响因素的基础上,根据水电站历史运行资料建立模型函数以模拟水电站单机出力系数,进而给出水电站综合出力系数的计算方法,并以龙江水电站为例进行了运算,结果表明该方法计算的出力系数趋势稳定,性能可靠,精度较高。
Hydropower calculation is a core work in operation and management of hydropower station. Especially in the optimal operation calculation, it requires more precision in order to find the best scheduling scheme. For the common direct calculation method which has large deviation and often lead to irrational decision making, this research converts the constant efficiency coefficient value into a dynamic one. Based on the analysis of factors for influencing power output coefficient, historical operation data is used to establish mathematical model of single unit’s output coefficient. Finally the calculation method of comprehensive output coefficient is obtained. Taking Longjiang hydropower station in Yunnan Province for an example, the results show that the trend of output coefficient obtained by the simulation model is reliable and it has higher precision.
出处
《水电能源科学》
北大核心
2014年第2期64-67,共4页
Water Resources and Power
基金
水文水资源与水利工程科学国家重点实验室基本科研业务费专项资金项目(L201115)
关键词
水电站
出力系数
水能计算
调度模拟
龙江水电站
hydropower station
power output coefficient
hydropower calculation
regulation process simulation
Longjiang Hydropower Station
