Gamesa Innovation & Technology, S.l.

Ignacio Romero Sanz

Mario Jimenez De Lago

Jose Maria Lopez Rubio

Juan Carlos Garcia Andujar

Jesus Javier Guerrero Carrion

Borja Molera Llorente

Felipe Palou Larrañaga

Jose Raul Nova Ramos

Angel Martin Da Silva

Gideon Nagy

Jose Ma Lopez Rubio

A method for the operation of a variable-speed wind turbine having pitch and torque control means that includes additional steps for providing to the torque control means, in case of an environmental situation where the air density &#x3c1; is greater than a predetermined value &#x3c1;, i.e. a situation combining low temperature and low height, a reduced nominal generator speed &#x3a9;, instead of the rated nominal generator speed &#x3a9;, which is determined dynamically as a function of at least the air pressure Pr, the temperature T and the wind speed V, for decreasing the wind turbine loading. The invention also refers to a control system arranged for performing said regulation.

Wind turbine control methods and systems for cold climate and low altitude conditions

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

The invention relates to an aerodynamic profile for the root of a wind turbine blade having a double leading edge, including a leading edge (), a trailing edge () and suction and pressure sides () between the leading edge () and the trailing edge (). The profile (') has a relative thickness in the 30%-50% range in at least one section () of the root region (). In addition, the convex portion () of the pressure side () is configured such that the curvature thereof decreases from a value Cat the leading edge () to a value Cat a first point Pand subsequently increases to a value Cat a second point P, after which it decreases to a value 0 at the end of the convex portion ().

Double leading edge airfoil for wind turbine blade root

Growing community of inventors

Madrid, Spain

Ignacio Romero Sanz