Gamesa Innovation & Technology, S.l.

Juan Carlos Garcia Andujar

Francisco Jimenez Buendia

Jose Maria Lopez Rubio

Ignacio Romero Sanz

Mario Jimenez De Lago

Angel Martin Da Silva

Jose María Lopez Rubio

Jose Ma Lopez Rubio

Ignacio Romero-Sanz

The present invention is directed to a method of reducing a mechanical load on the occurrence of voltage dip in the wind turbines. The wind turbine generator controller and the converter control unit work in combination to control the oscillation generated due to voltage dip in the wind turbine. The method applies a ramp in power recovery to allow the enhanced DTD damp oscillations before the peak in torque happens. The method involves the step of: delivering a maximum active power value by the converter control unit to the wind turbine generator controller. Next step is setting a saturation value for the set points to enhance the drive train limits. In the next step, ramping is applied to the power set points of the wind turbine generator. And finally an enhanced drive train damping s applied to the ramped value of the power in order to reduce the mechanical load in the wind turbine and to damp the oscillation in the wind turbine generator.

Smart power management during voltage dip in wind turbines

A control system to improve the production of a variable speed wind turbine comprising control devices for a standard regulation tracking a power vs. generator speed curve that also uses an alternative regulation for optimizing the energy production along determinate time periods Tfor compensating previous energy losses at a higher power Pthan the power determined by the standard regulation, the alternative regulation being based on a continuous calculation of the accumulated lost energy ALE as the energy lost with respect to the maximum allowed energy production according to the standard regulation and the fixation of the higher power Pand a setting of the duration of the time periods Tbeing compatible with wind turbine electrical or mechanical limitations. A wind turbine controlled by the method.

Control system and method to improve the electrical energy production of a variable speed wind turbine by alternative regulation

Method of operation of a variable speed wind turbine () having control means for its regulation tracking a power vs. generator speed curve () comprising a nominal zone () where the power is kept constant at a nominal value, a first sub-nominal zone () where the generator speed is kept constant at its coupling value, a second sub-nominal zone () where both generator speed and power are allowed to increase/decrease in line with wind speed and a third sub-nominal zone () between the second sub-nominal zone () and the nominal zone () that comprises a first vertical segment () at a generator speed nhigher than the generator nominal speed nand a second vertical segment () at the generator nominal speed nconnecting with the nominal zone (), each of both segments () to be followed in function of the wind speed changes for optimizing the energy production.

Wind turbine control methods for improving the production of energy

Growing community of inventors

Madrid, Spain

Juan Carlos Garcia Andujar