WIND-TURBINE CONTROL METHODS FOR IMPROVING POWER PRODUCTION
Method of operation of a variable speed wind turbine (11) having control means for its regulation tracking a power vs. generator speed curve (31) comprising a nominal zone (39) where the power is kept constant at a nominal value, a first sub-nominal zone (33) where the generator speed is kept consta...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | Method of operation of a variable speed wind turbine (11) having control means for its regulation tracking a power vs. generator speed curve (31) comprising a nominal zone (39) where the power is kept constant at a nominal value, a first sub-nominal zone (33) where the generator speed is kept constant at its coupling value, a second sub-nominal zone (35) where both generator speed and power are allowed to increase/decrease in line with wind speed and a third sub-nominal zone (37) between the second sub-nominal zone (35) and the nominal zone (39) that comprises a first vertical segment (41) at a generator speed n r2 higher than the generator nominal speed n r1 and a second vertical segment (43) at the generator nominal speed n r1 connecting with the nominal zone (39), each of both segments (41, 43) to be followed in function of the wind speed changes for optimizing the energy production. |
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