Wind turbine and method for ice removal in wind turbines

Abstract

A wind turbine is disclosed which comprises a control system configured to execute at least one ice removal routine which comprises a heating stage of at least one of the blades (3), and a mechanical removal ice stage. A wind turbine removing ice method is also disclosed which comprises a stage wherein the presence of ice is detected on at least one of the blades and, once said presence of ice is detected, comprises a stage wherein at least one ice removal routine is activated which comprises, in turn, a heating stage of at least one of the blades and a mechanical removing ice stage on at least said blade.

Description

OBJECT OF THE INVENTION[0001]The present invention belongs to the field of energy generation by means of wind turbines. In particular, the present invention relates to a wind turbine having the capacity of removing ice deposited on its blades and a removing ice deposited in the wind turbine blades method.BACKGROUND OF THE INVENTION[0002]The deposition of ice or other type of unwanted material on the wind turbine blades causes inadequate operation in terms of production and loads. This is due to the variation in the aerodynamic and mass characteristics of the blades, partly due to the modification of the geometry of the aerodynamic profiles. This variation in aerodynamic profiles can even cause aerodynamic loss in certain parts of the blade. Said variation can result in an increase in wind turbine loads and vibrations.[0003]The prior art proposes different solutions to try to solve the previously described problem.[0004]Therefore, there are systems for removing and / or preventing ice ...

AI Technical Summary

Benefits of technology

The present invention relates to a wind turbine with a heating system for removing ice from its blades. The technical effect of the invention is to provide a wind turbine that can effectively remove ice from its blades with less energy consumption and without requiring significant modifications in the structural design of the blades. The heating system can be connected to the control system of the wind turbine and can include at least one heating element disposed in each blade. The heating stage can be carried out first, followed by a mechanical ice removal stage, which can accelerate the removal of ice that may remain adhered to the outer blade surface after the heating stage.

Problems solved by technology

The deposition of ice or other type of unwanted material on the wind turbine blades causes inadequate operation in terms of production and loads.

This variation in aerodynamic profiles can even cause aerodynamic loss in certain parts of the blade.

Said variation can result in an increase in wind turbine loads and vibrations.

The main drawback of said system is that it requires the inclusion of technically complex elements and an adaptation of the structural blade design (or at least verification of its adequacy) for integration thereof.

However, said control method for ice removal is only effective with low-density ice.

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