Generator power system stabilizer control parameter stability domain determination method

The invention discloses a method for determining a stability domain of control parameters of a generator power system stabilizer. The method comprises the following steps: S1, acquiring parameters of a generator, excitation, a power system stabilizer (PSS) and a grid-connected power system; s2, determining a system state variable x, a control variable and an intermediate variable u according to the parameters, and initializing a generator, excitation, a power system stabilizer (PSS) and a grid-connected power system according to a system steady-state calculation result; s3, obtaining an operation power system model; s4, extracting a small disturbance stability analysis model; s5, constructing and initializing a system control parameter space; s6, searching and evaluating the track stability of each running point in the specified direction; and S7, adjusting a control parameter search direction, and determining a control parameter stability domain boundary set. According to the method for determining the stabi