Supervision of controller instability in a wind turbine
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United States of America Patent
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Mar 6, 2018
Issued Date -
N/A
app pub date -
Dec 20, 2011
filing date -
Dec 23, 2010
priority date (Note) -
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Abstract
A wind turbine including a controller configured to periodically enter an Eigen frequency detection mode in which the controller gain is incremented in a controlled manner to detect the Eigen frequencies. During normal operations, the controller output may be monitored to detect the Eigen frequency which, if detected, may allow damage control operations to be undertaken.
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