径流电站流量计算误差分析

受水文资料限制,径流电站流量计算大部分采用简化算法,存在一定误差。文中通过对山西省南庄、润城和静乐三个长系列水文站实测资料统计,分析了月平均流量历时曲线转换为日平均流量历时曲线的修正系数。并经分析认为,以丰、平、枯三个代表年日平均流量代替多年日平均流量存在偏小的可能。

Error Analysis of Discharge Calculations in Run-of-river Hydropower

Because of shortage of gauging data, discharge calculations in most run-of-river hydropower stations have errors by simplified method. This paper analyses the correction factor converting monthly discharge duration curve to daily discharge duration curve, by three long-term series gauging station data, Nanzhuang, Runcheng and Jingle in Shanxi province. This paper also suggests that it may be smaller substituting wet year, average year and dry year daily data for long term daily data.