Method of operating a wind park
First Claim
1. A method of operating a wind park comprising a plurality of wind power installations, wherein the wind park is connected to an electrical power supply network into which the electrical power produced by the wind park is fed and the wind park and/or at least one of the wind power installations of the wind park has a control input, by means of which the electrical power of the wind park or one or more individual wind power installation or installations can be set in a range of between 0 and 100% of the respective power to be made available, in particular the nominal power, and that there is provided a data processing apparatus which is connected to the control input and by means of which the setting value is set in the range of between 0 and 100%, depending on how great is the power that the overall wind park provides at its output for feeding into the energy network and wherein the operator of the electrical supply network to which the wind park is connected can adjust the power delivered by the wind park by way of the control input, that the delivered electrical power of the wind park is reduced when the network frequency in the electrical power supply network exceeds or falls below a given value and the electrical voltage in the electrical power supply network exceeds and falls below a given value and that the phase angle φ
- of the phase position between the current which is fed in and the voltage which is fed in is changed in dependence on the electrical network voltage.
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Accused Products
Abstract
Wind power installations were initially always erected in the form of individual units and it is only in recent years that, caused also by administrative and building regulations, wind power installations are frequently installed in wind parks. In that respect a wind park in its smallest unit is an arrangement of at least two wind power installations, but frequently markedly more. By way of example mention may be made of the wind park at Holtriem (East Frisia) where more than 50 wind power installations are set up in an array. It is to be expected that the number of units and also the installed power of the wind power installations will also increase greatly in the forthcoming years. In most cases the wind potential is at its greatest in regions of the power supply networks with a low level of short-circuit power and low population density. It is precisely there that the technical connection limits are quickly reached by the wind power installations, with the result that it is then no longer possible for further wind power installations to be set up at such sites. A method of operating a wind park comprising a plurality of wind power installations, wherein the wind park is connected to an electrical power supply network into which the electrical power produced by the wind park is fed and the wind park and/or at least one of the wind power installations of the wind park has a control input, by means of which the electrical power of the wind park or one or more individual wind power installation or installations can be set in a range of between 0 and 100% of the respective power to be made available, in particular the nominal power, and that there is provided a data processing apparatus which is connected to the control input and by means of which the setting value is set in the range of between 0 and 100%, depending on how great is the power that the overall wind park provides at its output for feeding into the energy network and wherein the operator (PSU) of the electrical supply network to which the wind park is connected can adjust the power delivered by the wind park by way of the control input.
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Citations
25 Claims
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1. A method of operating a wind park comprising a plurality of wind power installations, wherein the wind park is connected to an electrical power supply network into which the electrical power produced by the wind park is fed and the wind park and/or at least one of the wind power installations of the wind park has a control input, by means of which the electrical power of the wind park or one or more individual wind power installation or installations can be set in a range of between 0 and 100% of the respective power to be made available, in particular the nominal power, and that there is provided a data processing apparatus which is connected to the control input and by means of which the setting value is set in the range of between 0 and 100%, depending on how great is the power that the overall wind park provides at its output for feeding into the energy network and wherein the operator of the electrical supply network to which the wind park is connected can adjust the power delivered by the wind park by way of the control input, that the delivered electrical power of the wind park is reduced when the network frequency in the electrical power supply network exceeds or falls below a given value and the electrical voltage in the electrical power supply network exceeds and falls below a given value and that the phase angle φ
- of the phase position between the current which is fed in and the voltage which is fed in is changed in dependence on the electrical network voltage.
- 2. A wind park having a nominal power which is greater than the power which can/may be fed into the power supply network to which the wind park is connected.
- 7. A method of operating a wind park comprising at least one wind power installation having a generator for the delivery of electrical power to an electrical network, characterized in that the power delivered to the network by the wind park is regulated or adjusted in dependence on the network frequency of the electrical network.
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15. A method of operating a wind park having a wind power installation comprising an electrical generator drivable by a rotor of the wind power installation for delivering electrical power to an electrical network, wherein there is provided a control device which controls the voltage and/or the current of the electrical power to be fed into the network, characterized in that there are provided means for measuring the voltage at least at one location in the electrical network and that the measured value is fed to the control device and the control device implements a phase angle change in dependence on the measured value, wherein the phase angle φ
- determines the phase position between the current which is fed in and the voltage which is fed in.
- View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
Specification