Operating a wind turbine being connected to a utility grid both via a HVDC power connection and via an umbilical AC cable with a network bridge controller performing a power and a voltage control
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United States of America Patent
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Jun 12, 2018
Issued Date -
Jan 12, 2017
app pub date -
Jun 14, 2016
filing date -
Jul 7, 2015
priority date (Note) -
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Abstract
A method is provided for controlling the operation of a wind turbine includes (a) receiving an active power reference signal; (b) determining, based on the active power reference signal and an active power feedback signal, a first voltage control signal and a power controller frequency signal; (c) receiving a power reference signal; (d) determining, based on the power reference signal and the power feedback signal, a power offset frequency signal; (e) determining, based on the power controller frequency signal, a second voltage control signal; (f) determining, based on the power offset frequency signal, an angle signal indicative for an actual angle of a rotating dq reference frame; and (g) controlling the operation of a power converter based on the first voltage control signal, the second voltage control signal, and the angle signal.
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