Aiming at the new requirements of controlling the minimum discharge flow in hydropower stations during AGC operation

the actual situation that hydropower stations commonly implement remote centralized control is fully taken into consideration

and the major factors that need to be considered in designing a hydropower station with the function for ensuring ecological discharge are analyzed. The importance of each factor is evaluated and the approximate processing is optimized. At last

a new strategy of designing the ecological flow protection is proposed based on the computer monitoring system of hydropower stations. The strategy is proved to advance the design and implementation of AGC function in hydropower stations considering the new requirements of environmental protection

and shows a good performance when being applied to Houziyan hydropower station located in Dadu River Basin