초록 ▼

The present invention concerns a method of controlling a wind power installation and a wind power installation in particular for carrying out the method. Wind power installations have been generally known for a long time and in recent times are increasingly used as environmentally friendly energy ge

The present invention concerns a method of controlling a wind power installation and a wind power installation in particular for carrying out the method. Wind power installations have been generally known for a long time and in recent times are increasingly used as environmentally friendly energy generators. In that respect it is in the very nature of things that such installations are exposed to the influences of the weather. One of the problems which is of great significance in wind power installations is moisture as wind power installations with their electrical systems must be substantially protected therefrom. Therefore, the object of the present invention is to eliminate that risk which occurs due to the moisture. A method of controlling a wind power installation characterised by detecting the temperature of the generator and the temperature of the air in the surroundings of the wind power installation, ascertaining the temperature difference, and heating the generator if the temperature of the generator is below the temperature of the ambient air.

대표청구항 ▼

The invention claimed is: 1. A method of controlling a wind power installation, comprising: detecting the temperature of a generator and the temperature of the ambient air in the surroundings of the wind power installation, ascertaining the temperature difference, heating the generator if the temp

The invention claimed is: 1. A method of controlling a wind power installation, comprising: detecting the temperature of a generator and the temperature of the ambient air in the surroundings of the wind power installation, ascertaining the temperature difference, heating the generator if the temperature of the generator is at a selected value relative to the temperature of the ambient air, short-circuiting the generator stator, and applying a predeterminable exciter current to the generator rotor. 2. The method as set forth in claim 1 characterized in that heating of the generator is effected for a predetermined time or until the temperature of the generator exceeds the ambient temperature by a predetermined amount. 3. A wind power installation for carrying out the method as set forth in claim 1, characterized in that there are provided at least two temperature pick-ups of which one detects the temperature of the generator of the wind power installation or other parts of the wind power installation and the other temperature pick-up detects the temperature in the surroundings of the wind power installation, that there is also provided a comparison device which compares the temperature values of the two temperature pick-ups and heating of the generator or other parts of the wind power installation is effected if a temperature difference in the two recorded temperatures was established, in accordance with which the temperature of the generator or other parts within the wind power installation is below the temperature of the ambient air. 4. A wind power installation for carrying out the method as set forth in claim 1, comprising an electrical generator for producing electrical energy, characterized by a device for short-circuiting the stator, and a control having at least two temperature pick-ups for sensing the temperature of the generator and the ambient air, and a device for comparing the temperatures so that the generator heating is controllable in dependence on the temperature difference. 5. The method as set forth in claim 1 characterized in that heating of the generator is effected if the temperature of the generator is below the temperature of the ambient air by a threshold amount. 6. A wind power installation for carrying out the method as set forth in claim 1, comprising an electrical generator for producing electrical energy, characterized by a device for heating the generator or other electrically sensitive parts within the wind power installation, and a control having at least two temperature pick-ups for sensing the temperature of the generator and the ambient air, and a device for comparing the temperatures so that the generator heating is controllable in dependence on the temperature difference. 7. A method of controlling a wind power installation characterized by the following steps: detecting a moisture deposit on parts of a generator or other electrically sensitive parts of the wind power installation, and heating the generator if the moisture deposit is above a predetermined value. 8. The method as set forth in claim 7 characterized by the following steps: short-circuiting the generator stator, and applying a predeterminable exciter current to the generator rotor. 9. A wind power installation, comprising: means for detecting the moisture which forms within the wind power installation, wherein the means detects the presence of a moisture deposit on electrically sensitive parts of the wind power installation and, means for heating said electrically sensitive parts of the wind power installation. 10. A wind power installation as set forth in claim 9, further including means for measuring the moisture which forms within a wind power installation, wherein the means measures the amount of a moisture deposit on electrically sensitive parts of the wind power installation. 11. A wind power installation as set forth in claim 10, characterized in that the means for heating performs heating of electrically sensitive parts of the wind power installation if the measured moisture exceeds a selected value. 12. The method as set forth in claim 1 wherein the heating of the generator is effected if the temperature of the generator equals the temperature of the ambient air. 13. A wind power apparatus comprising: a first sensor that detects the temperature of a generator; a second sensor that detects the temperature of the ambient air in the surroundings of the wind power installation; a control circuit that detects the temperature difference; a heater that heats the generator if the temperature of the generator is approximately equal to or below the temperature of the ambient air; and a sensor for detecting the presence of a moisture deposit on electrically sensitive parts of the wind power installation.