A Modeling Method for Power System Transient Stability Assessment
A technology of transient stability evaluation and modeling method, which is applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., and can solve the problems that the dynamic characteristic evolution information of the intermediate process is not applied and affects the reliability of the final evaluation result, etc.
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[0179] Taking the New England 10-machine 39-node system as an example to illustrate the effectiveness of the power system transient stability rapid assessment modeling method proposed in the present invention. The number of generators in the power system is m=10, the reference frequency is 60Hz, the sampling period Δt=0.0167s, and the simulation software uses PSASP.
[0180] 1) Set single-phase short-circuit, two-phase short-circuit, two-phase-to-ground short-circuit and three-phase short-circuit in sequence on the line, select the trajectory data within 9 cycles after the fault is removed, that is, n=9, and generate s=4104 kinds of work In this case, the trajectories of all generator rotor angle faults are removed, and the initial acquisition data model is obtained.
[0181] 2) Calculate the corresponding generator relative rotor angle relative rotor angular velocity and the relative rotor angular acceleration where i=1,2,...,10; j=1,2,...,9; k=1,2,...,4104.
[0182] 3...
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