Zastosowanie przekształceń czasowo-częstotliwościowych do analizy zjawisk falowych w sieciach elektroenergetycznych

Artykuł zawiera analizę i ocenę skutków przepięć w sieciach elektroenergetycznych

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In this paper the results of application of time-frequency of the measured overvoltages were presented on the basis of short-time Fourier transform and continuous wavelet transform. the analysis makes it possible to extract the information regarding its spectrum variance in time domain from the noise. the results gained from the application of the above analysis give the grounds of the identification of overvoltages on the basis of the frequency patterns.