摘要
水电站短期优化调度运用在出力推求发电流量时常采用迭代方法,而不恰当的迭代初始值会导致迭代计算次数大幅增加、计算效率低及迭代不收敛等问题。针对这些问题,本文通过对多个水电站实验数据的分析研究,提出了一种在实际工况条件下的机组发电流量隐函数形式。基于发电流量计算影响因素拟提出水电站机组发电流量迭代动态初始解函数式,将该函数计算值作为发电流量迭代计算的初始值。实例应用表明,该方法能够较地好提高计算效率,且方法简单有效,为水电站在短期优化调度中机组发电流量迭代计算提供了新方法。
In the short-term optimal dispatching of hydropower stations,the iterative method is often used to calculate the generation discharge from the output,and the improper initial value of iteration will lead to the problems of greatly increasing the number of iterations,low calculation efficiency and non-convergence of iteration.In order to solve the above problems,based on the analysis and research of experimental data of several hydropower stations,this paper puts forward an implicit function form of generating discharge under actual conditions.Based on the influencing factors of generating discharge calculation,the iterative dynamic initial solution function of generating discharge of hydropower stations is fitted,and the calculated value of this function is taken as the initial value of iterative calculation of generating discharge.The example application shows that the method can improve the calculation efficiency,and the method is simple and effective,which provides a new method for the iterative calculation of generation discharge of generator in short-term optimal dispatching of hydropower stations.
作者
胡志鹏
吴莹
HU Zhipeng;WU Ying(PowerChina Chengdu Engineering Co.,LTD,Chengdu,Sichuan,610072)
出处
《四川水力发电》
2021年第3期124-129,共6页
Sichuan Hydropower
关键词
水电站短期优化调度
发电流量
迭代计算
动态初始解
short-term optimal dispatching of hydropower stations
generation discharge
iterative calculation
dynamic initial solution
