Method for positioning oscillation disturbance source in power system
A power system and disturbance source technology, applied in the direction of reducing/preventing power oscillation, fault location, etc., can solve the problem of control measures relying on relevant plans and power grid dispatching operators, etc., to prevent further expansion of accidents, prevent misjudgment, and improve dynamic The effect of stable levels
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[0024] The discrimination method provided by the present invention is as follows:
[0025] (1) Introduction to the Judgment Principle of Oscillation Time of Multiple Measurement Points
[0026] Use the oscillation waveform recognition technology based on power data to determine whether the measurement point has started to vibrate, and record the corresponding start-up time.
[0027] (1.1) Oscillation Confirmation Conditions
[0028] 1. The oscillation period T satisfies: Tmin≤T≤Tmax, where Tmin and Tmax are usually set in the range of [0.4, 10] seconds;
[0029] 2.P max -P min ≥P set
[0030] (1.2) Counting methods of equal amplitude, increasing amplitude and decreasing amplitude oscillation
[0031] If it is judged to be an amplitude oscillation, the start-of-vibration discrimination counter will be +2;
[0032] It is judged as damping oscillation, if Then start the vibration discrimination counter -2, otherwise
[0033] Vibration discrimination counter - 1;
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