For e.g. If i take sine wave input (it may have some small disturbance), after creating the fault @0.5s,that waveform will be more distorted than normal,that particular time i need to measure precisecly.
To measure time for sudden change in waveform
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Hi friends,
I am doing the fault location using wavelets. For that, am having two waveforms (aerial mode voltage(Va) & ground voltage (Vo)).
If, am creating fault,@0.5s, I need to find out the disturbance time of both waveforms, bcos both waveforms will take some time to respond.
Thanks!!!
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Wayne King
2012년 3월 26일
For this, you will want to use either the continuous wavelet transform (cwt or cwtft), or a nondecimated wavelet transform (ndwt, or swt).
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Wayne King
2012년 3월 26일
Then feel free to use any of those methods, see the documentation for examples. You should be able to localize the disturbances at small (fine) scales.
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