Adaptive Control Method of Governor's Water Head Opening and Active Power Correlation Curve

Abstract

The invention provides a self-adaptive control method for a water head opening degree and an active power coupling curve of a speed regulator. The method comprises the following steps of setting original data of the water head opening degree and the active power coupling curve; initializing the system; recording a current water head h, a unit active power p and a guide vane opening degree y automatically by an electric control system of the speed regulator when the condition that the active power of an unit reaches a power given value and keeps stable operation is detected in the process thatthe units are operated in a grid-connected mode; correcting the water head opening degree and the active power coupling curve table. The method is suitable for a hydroelectric generating set with an electric-controlled speed regulator by using the water head opening degree and the active power coupling curve, and the problems that in the units grid-connected operation process, the adjusting performance of active power of the unit is poor due to the fact that the set water head opening degree and the active power coupling curve of the speed regulator is not reasonable and the like are solved.

Description

technical field [0001] The invention belongs to the field of automatic control of hydropower stations, and in particular relates to an adaptive control method for a water head opening of a governor and an active power association curve. Background technique [0002] At present, during the operation of the hydro-generator set, the associated curve of the governor's water head opening and active power is set according to the data provided by the main engine manufacturer, and the data provided by the main engine manufacturer is a theory obtained through comprehensive calculation after model tests. The data is often inconsistent with the actual operation of the real machine, and the association curve of water head opening and active power after setting on site cannot be corrected and adapted in real time according to the actual operation. If the set water head opening and active power association curve is distorted, it will have an adverse effect on the active power regulation p...

AI Technical Summary

Problems solved by technology

The present invention is applicable to the hydropower generating set that uses the water head opening and active power association curve for governor electrical control, and aims to solve the problem that the water head opening and active power association curve of the governor are not set properly during the grid-connected operation process. Reasonably caused problems such as poor active power regulation performance of the unit

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