METHOD OF OPERATING A WIND POWER INSTALLATION AND A WIND POWER INSTALLATION
First Claim
1. A method of operating a wind power installation comprising an electric generator drivable by a rotor for supplying electrical power to an electrical network, in particular its connected consumers, characterised in that the power supplied to the network by the generator is regulated in dependence on an electrical voltage applied to the network, that the wind power installation remains connected with the grid even if the electrical voltage applied to the network is below Umin and/or above Umax, whereby Umin is a voltage level below the reference value of the electrical voltage applied to the network, whereby Umax is a voltage level which is above the reference value of the electrical voltage applied to the network, that the wind power installation is feeding its maximum power to the grid if the voltage is between a further value U3 and U1, whereby the voltage level of U3 is bigger than the voltage level of Umin but smaller than of U1 and whereby the voltage level of U1 is smaller than the voltage level of Umax but greater than of U3 (see FIG. 3) and that the wind power installation is reducing its power output fed to the network if the voltage applied to the grid is in the region between U1 and Umax on the one side and/or between Umin and U3 on the other side.
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Abstract
The present invention concerns a method of operating a wind power installation comprising an electric generator drivable by a rotor for outputting electrical power to an electrical consumer, in particular an electrical network.
The invention further concerns a wind power installation comprising a rotor and an electric generator coupled to the rotor for outputting electric power to an electrical consumer, in particular an electrical network.
- The object of the present invention is to provide a method of operating a wind power installation, and a wind power installation, which avoid the disadvantages of the state of the art and in particular avoid voltage over-fluctuations at the consumer, in particular an electrical network, and unwanted shut-down of the wind power installation.
- In a method of the kind set forth in the opening part of this specification, that object is attained by the invention in that the power delivered to the network by the wind power generator is regulated in dependence on the applied network voltage of the power supply network.
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Citations
8 Claims
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1. A method of operating a wind power installation comprising an electric generator drivable by a rotor for supplying electrical power to an electrical network, in particular its connected consumers, characterised in that the power supplied to the network by the generator is regulated in dependence on an electrical voltage applied to the network, that the wind power installation remains connected with the grid even if the electrical voltage applied to the network is below Umin and/or above Umax, whereby Umin is a voltage level below the reference value of the electrical voltage applied to the network, whereby Umax is a voltage level which is above the reference value of the electrical voltage applied to the network, that the wind power installation is feeding its maximum power to the grid if the voltage is between a further value U3 and U1, whereby the voltage level of U3 is bigger than the voltage level of Umin but smaller than of U1 and whereby the voltage level of U1 is smaller than the voltage level of Umax but greater than of U3 (see
FIG. 3 ) and that the wind power installation is reducing its power output fed to the network if the voltage applied to the grid is in the region between U1 and Umax on the one side and/or between Umin and U3 on the other side.
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8. A method of operating an energy-generating apparatus comprising an electric generator for supplying electrical power to an electrical network, in particular that of the connected consumers, wherein the power generated fluctuates, characterised in that the power supplied to the network by the generator is regulated in dependence on an electrical voltage applied to the network.
Specification