FIELD: physics.
SUBSTANCE: group of inventions relates to stabilization of speed (N) of rotation of hydraulic machine, having S-shaped relationship between rotation speed and torque, and installation for conversion of hydraulic energy into electrical. Method is implemented by control system with feedback loop having controller (C(s)) for calculation of orientation (Y) attached to guide vanes. Method includes stages, which at each iteration include: calculating a set of internal states associated with the operating point of the machine in accordance with a set of internal states, establishing a linearised transfer function, which is the machine rotation speed depending on the orientation of the guide vanes, calculation of characteristic parameters of regulator depending on characteristic parameters of linearized transfer function, at which control system is stable, measurement of speed (N), comparison of measured speed (N) with specified speed (NC) and control by means of regulator (C(s)) to reduce difference (ΔN) between (N) and (NC).
EFFECT: group of inventions is aimed at stabilization and synchronization of rotation speed at start-up with frequency of power system for possibility of connection with it.
10 cl, 3 dwg
