Switch cabinet for a wind turbine and method for operating wing turbine

Abstract

The invention relates to a switch cabinet for a wind turbine with at least one circuit element accommodated in said switch cabinet and a drying arrangement for preventing water depositions onto the at least one circuit element, wherein the drying arrangement includes a device for generating an air flow in a region of the at least one circuit element, the device including a peltier element.

Description

technical field [0001] The invention relates to a switch box for a wind turbine, with at least one circuit housed in said switch box, and drying means for preventing water from depositing on said at least one circuit element, The invention also relates to a method for operating a wind turbine using such a switchbox. Background technique [0002] Operating parameters of modern wind turbines such as blade angle, general orientation of the rotor and / or adjustment of the generator used to generate electricity are controlled electronically. The conductive or circuit elements used for this purpose are often housed in a switch box mounted to the machine gondola, which is placed at a height of up to 100 metres. This switch box is affected by the atmosphere. In order to ensure reliable operation of the wind turbine, water should not deposit on conductive or circuit components under any atmospheric conditions. [0003] In prior art switchboxes for wind turbines, such conditions are...

AI Technical Summary

Problems solved by technology

However, such desiccants have a limited absorption capacity, making them need to be replaced frequently, which can be problematic especially when switch boxes are set at a height of 100 meters or more

Furthermore, the reaction rate of desiccants for binding moisture in the air is relatively low, so that a reliable prevention of water deposition on conductive elements cannot be achieved by this method

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