Direct power and stator flux vector control of a generator for wind energy conversion system
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United States of America Patent
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Mar 12, 2013
Issued Date -
N/A
app pub date -
Oct 14, 2011
filing date -
Aug 29, 2008
priority date (Note) -
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Abstract
A method for controlling a variable speed wind turbine generator is disclosed. The generator is connected to a power converter comprising switches. The generator comprises a stator and a set of terminals connected to the stator and to the switches of the power converter. The method comprises: determining a stator flux reference value corresponding to a generator power of a desired magnitude, determining an estimated stator flux value corresponding to an actual generator power, determining a difference between the determined stator flux reference value and the estimated stator flux value, and operating said switches in correspondence to the determined stator flux reference value and the estimated stator flux value to adapt at least one stator electrical quantity to obtain said desired generator power magnitude.
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