Method and system for constructing power oscillation attack detector cooperating with power terminal

The invention discloses a construction method and system of a power terminal collaborative power oscillation attack detector, and the construction method comprises the steps: introducing an attack signal into a first system state equation after the power oscillation attack signal is established, and obtaining a second system state equation; obtaining a system response equation and a system output signal of the target power system through the virtual output equation and the second system state equation; constructing a first transfer function of the initial detector; obtaining a residual signal generated by an initial detector according to the system output signal and the first transfer function; and under the condition that the first sub-residual signal is not zero, the second sub-residual signal is not zero and the third sub-residual signal is zero, the first transfer function is optimized by taking residual signal maximization as a target, and a second transfer function of the target detector is obtained. By