Variable speed wind turbine having an exciter machine and a power converter not connected to the grid
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United States of America Patent
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Sep 16, 2008
Issued Date -
N/A
app pub date -
Jun 30, 2006
filing date -
Mar 17, 2006
priority date (Note) -
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Abstract
A variable speed wind turbine having a doubly fed induction generator (DFIG), includes an exciter machine mechanically coupled to the DFIG and a power converter placed between a rotor of the DFIG and the exciter machine. Thus, the power converter is not directly connected to the grid avoiding the introduction of undesired harmonic distortion and achieving a better power quality fed into the utility grid. Moreover, the variable speed wind turbine includes a power control and a pitch regulation.
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