关键词: 初期蓄水, 逐月排频法, 典型蓄水期法, 逐月-整体排频法, 小中甸水利枢纽工程

Abstract: The reservoir initial storage period refers to the entire period from starting impounding to reaching normal operating level, successful initial water storage is a prerequisite for the successful operation of a reservoir. The reservoir initial storage is generally calculated by using the typical year method and long series method. Influenced by the incomplete random distributed runoff in a year, the calculation result of typical year method has big deviation, while long series method requires too much calculation. Considering these problems and based on the two conventional methods, this article presents two new methods - typical water storage method and month-by-month frequency calculation plus integral frequency calculation method. The two new methods were applied in a case. After comparing the calculation results of the two methods, the later method can reduce calculation and improve accuracy which is recommended to be used in similar projects.

Key words: initial storage, monthly frequency method, typical water storage method, month-by- month frequency calculation plus integral frequency calculation method, Xiaozhongdian water conservancy project