Method and device for optimizing regulation of reservoir sediment discharging based on asynchronous propagation characteristic between flood peak and sediment peak

A device for optimizing regulation of reservoir sediment discharging based on an asynchronous propagation characteristic between a flood peak and a sediment peak, comprising:

• a collecting module, which collects hydrologic features and measured topographic data of tail area of a reservoir;
• a relation curve determining module, which determines a relation curve between a dam front water depth and a reservoir capacity based on the measured topographic data;
• a reservoir lag time length determining module, which determines a time length by which a sediment peak entering in the reservoir is propagated to the front of a dam and a time length by which the sediment peak lags behind a flood peak at the front of the dam of the reservoir based on the relation curve between the dam front water depth and the reservoir capacity as well as the hydrologic features;
• a man-made flood wave propagation time length determining module, which determines a relation curve between a sediment peak attenuation rate corresponding to the hydrologic features and a sediment concentration of the sediment peak entering in the reservoir, and determine a time length by which the sediment peak subjected to a man-made flood wave is propagated to the front of the dam;
• a responding module, which acquires a real-time sediment concentration of the sediment peak entering in the reservoir in response to an optimizing regulation instruction, and generate the man-made flood wave based on the time length by which the sediment peak entering in the reservoir is propagated to the front of the dam and the relation curve between the sediment peak attenuation rate and the sediment concentration of the sediment peak entering in the reservoir;
• a lag time length determining module, which determines a lag time length based on the time length by which the sediment peak lags behind the flood peak at the front of the dam of the reservoir, the time length by which the sediment peak subjected to the man-made flood wave is propagated to the front of the dam, and the sediment peak attenuation rate;
• and
• a discharging module, which discharges the man-made flood wave at a time that is after passing of the flood peak by the lag time length.

An electronic device, which comprises a processor and a memory, wherein the memory stores non-transitory computer readable instructions, and the non-transitory computer readable instructions, when executed by the processor, implement a method for optimizing regulation of reservoir sediment discharging based on an asynchronous propagation characteristic between a flood peak and a sediment peak, comprising:

• collecting, by a collecting module, hydrologic features and measured topographic data of tail area of a reservoir;
• determining, by a relation curve determining module, a relation curve between a dam front water depth and a reservoir capacity based on the measured topographic data;
• determining, by a reservoir lag time length determining module, a time length by which a sediment peak entering in a reservoir is propagated to front of a dam and a time length by which the sediment peak lags behind the flood peak at the front of the dam of the reservoir based on the relation curve between the dam front water depth and the reservoir capacity as well as the hydrologic features;
• determining, by a man-made flood wave propagation time length determining module, a relation curve between a sediment peak attenuation rate corresponding to the hydrologic features and a sediment concentration of the sediment peak entering in the reservoir, and a time length by which the sediment peak subjected to a man-made flood wave is propagated to the front of the dam;
• acquiring, by a responding module, a real-time sediment concentration of the sediment peak entering in the reservoir in response to an optimizing regulation instruction, and generating the man-made flood wave based on the time length by which the sediment peak entering in the reservoir is propagated to the front of the dam and the relation curve between the sediment peak attenuation rate and the sediment concentration of the sediment peak entering in the reservoir;
• determining, by a lag time length determining module, a lag time length based on the time length by which the sediment peak lags behind the flood peak at the front of the dam of the reservoir, the time length by which the sediment peak subjected to the man-made flood wave is propagated to the front of the dam, and the sediment peak attenuation rate;
• and
• discharging, by a discharging module, the man-made flood wave at a time that is after passing of the flood peak by the lag time length.