The invention discloses a
hydropower station peak regulation
discharge amplitude prediction method based on
water level amplitude variation control. The method comprises the following steps: simulating a non-constant flow process in a river channel by adopting a one-dimensional Saint-Venant equation set; solving the
water level of each
station along the downstream river channel of the
hydropower station at each moment, and calculating the
water level amplitude of each station along the downstream river channel of the
hydropower station; establishing a function relationship between the peak regulation
discharge amplitude of the hydropower station and the water level amplitude of the downstream navigable river reach; and substituting the water level variable amplitude of the downstream navigable reach required by shipping into the function relationship to obtain the peak regulation
discharge amplitude of the hydropower station meeting the water level variable
amplitude control requirement of the downstream navigable reach. According to the method, through one-dimensional non-constant flow
simulation calculation, the correlation between the peak-load discharge amplitude of the hydropower station and the water level amplitude of the downstream navigable reach is established in advance, and then the water level
amplitude control requirement of the downstream navigable reach is directly converted into the peak-load discharge amplitude of the hydropower station, so that clear constraint conditions are provided for dispatching of the hydropower station; the target of real-time and flexible dispatching of the hydropower station is achieved.