A Power System Transient Stability Assessment Method Based on Short-term Disturbed Trajectories
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[0045] The power system transient stability evaluation method based on short-term disturbed trajectory of the present invention, it comprises the following steps:
[0046]1) Determination of input features and output results of convolutional neural network:
[0047] ① Obtain disturbed trajectories of voltage amplitude, active power, rotational speed and power angle of a large number of generators through offline simulation, select four electrical quantity trajectories within 0.2s after the fault clearing time, sampling interval T=0.01s, each trajectory has a total of With 20 sampling points, the sampling sequences of the four short-term disturbed combined trajectories obtained by simulation constitute the input sample matrix set of the convolutional neural network, and the sampling sequences of the four electrical quantities of each generator are used as the input sample matrix set of each input sample matrix. column, the dimension of each sample matrix is 20×4n (n is the nu...
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