Vibration monitoring and diagnosing system for wind power generator
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United States of America
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Feb 25, 2020
Grant Date -
Dec 21, 2017
app pub date -
Jun 9, 2017
filing date -
Jun 9, 2017
priority date (Note) -
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Abstract
Disclosed herein is a vibration monitoring and diagnosing system for monitoring conditions of a wind power generator and diagnosing a defective portion thereof using vibration characteristics obtained from acceleration sensors mounted to the wind power generator. A vibration-based defect detecting method may include: collecting vibration data of the wind power generator using the plurality of sensors; extracting a first characteristic value of a time domain based on the vibration data; extracting characteristic values in one or more frequency bands for a location of each sensor in a frequency domain or an envelope frequency domain if the first characteristic value is greater than a preset alarm setting value; and determining that a defect is present when at least one characteristic value of the characteristic values is greater than a preset normal value.
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