Control method and system for wind turbine
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United States of America Patent
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May 22, 2018
Issued Date -
N/A
app pub date -
Jun 8, 2015
filing date -
Jun 11, 2014
priority date (Note) -
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Abstract
A control method and a control system for a wind turbine are disclosed. The control method comprises measuring wind turbine blade pitch angles; obtaining a wind turbine rotor acceleration value; determining whether a blade pitch runaway fault condition is occurring; and during the blade pitch runaway fault condition, adjusting a pitch angle command based at least in part on the rotor acceleration value, a pitch angle of at least one faulted blade and a pitch angle of a healthy blade; and controlling wind turbine blades based at least in part on the adjusted pitch angle command.
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