Wide area measurement system adaptive time-delay compensation method
A wide-area measurement system and time-delay compensation technology, which is applied in the field of time-delay adaptive prediction and compensation of wide-area measurement systems, to achieve the effects of avoiding the increase of prediction compensation errors, accurate prediction and compensation, and a simple and reliable method
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 In order to verify the effectiveness of the prediction compensation method in the present invention, the WAMS delay of Zhejiang power grid was measured and calculated statistically; the time length of prediction compensation was determined by the statistical results, and the angular velocity in the measurement signal of the PMU substation was selected. (or unit frequency) signal and tie line power signal are predicted and compensated.
 According to the first step of the present invention, the time delay data from each PMU substation to the WAMS main station is obtained by the time delay analysis and prediction compensation device installed in the PMU substation, and the average value μ of the time delay is calculated. delay and mean square error σ delay , and further obtain the time length of prediction compensation ΔT predict .
 The data is preprocessed by the data preprocessing method in the second step, and the angular velocity (or unit frequency) s...
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