The invention relates to a
hydropower station optimized operation control method and
system. The
hydropower station optimized operation control method comprises the steps that a curve of a water head, the guide vane opening angle and the unit output is obtained, and the water head corresponds to a
hydropower station unit, and a constant flow model or a
constant load model is built according to the curve of the water head, the guide vane opening angle and the unit output; the constant flow model or the
constant load model is solved so as to obtain a unit work control scheme; and operation of a hydropower station is controlled according to the control scheme. According to the hydropower station optimized operation control method, the actual curve of the water head, the guide vane opening angle and the unit output is obtained through in-situ experimental operation, and the mathematic model is built according to the curve, so that the obtained control scheme can meet the in-situ unit characteristics better; accordingly, the error is reduced, optimized operation of the hydropower station is achieved, and the guide vane opening angle, the unit output and other data can be used through data in existing unit
automation control systems; and the cost is low, and the
software cost and the hardware cost do not need to be additionally increased.