Waveform library for characterizing an AC power line spectrum
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United States of America Patent
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Nov 28, 1995
Grant Date -
N/A
app pub date -
Sep 9, 1992
filing date -
Sep 9, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus and method for characterizing an alternating current power line which uses a library of waveforms and associated spectra of digitally sampled alternating current power system voltage or current waveforms. The library of waveforms is built as new waveforms are measured from the alternating current power line. A measured waveform that is not found in the library will be converted to frequency-domain representation, using a Discrete Fourier Transform, that will then be stored in the library. When the library becomes full, the frequency domain representation of the new waveform will be stored in place of the least used waveform currently stored in the library.
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