Study on Optimal Operation Mode of Drainage Pumping Stations in Small or Medium Irrigation District

According to drainage pumping stations' characteristics in small or medium pumping irrigation areas,the paper takes the minimum total energy consumption of start-up units of drainage pumping stations and the minimum energy consumption rate as object functions.By means of the maximum start-up units efficiency of a pumping station and dynamic programming,the paper discusses the optimal operation mode of Shuhe-Dagang drainage area,which is a complete and closed system in Gushan irrigation district in Jingjiang city,under particular drainage design standards.The management level of small or medium drainage areas is improved.The paper offers a reference to reducing energy waste.