In order to meet the requirements of AGC and primary frequency regulation in the power grid,the power regulation mode is widely used in the speed control system of hydroelectric units.For the power regulation mode used in hydroturbine governor,it is difficult to achieve good control effects under various working conditions when the head and opening change.Therefore,the power feedforward control method has been proposed and applied to improve the control effect of the water turbine regulation system.The feedforward control is an open-loop control.In order to improve the accuracy of feedforward control,this paper proposes an automatic correction method for the power feedforward control of hydroelectric units.Simulation calculations and on-site applications have proven that this control method is fast,has small overshoot,and has high steady-state adjustment accuracy,which effectively improves the control response characteristics of hydroelectric power regulation.
维普
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