| CPC F03D 7/048 (2013.01) [F03D 7/0284 (2013.01); F03D 7/046 (2013.01); F03D 9/11 (2016.05); F05B 2220/7062 (2013.01); F05B 2260/42 (2013.01); F05B 2270/20 (2013.01); F05B 2270/32 (2013.01); F05B 2270/321 (2013.01); F05B 2270/322 (2013.01); F05B 2270/323 (2013.01); F05B 2270/325 (2013.01); F05B 2270/337 (2013.01); F05B 2270/402 (2013.01); Y02E 10/72 (2013.01)] | 7 Claims |
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1. A method for controlling a windfarm having a plurality of wind power installations and feeding into an electrical supply network at a network connection point, the method comprising:
inputting at least one control error at a control error input of a windfarm control stage,
generating, by at least one controller of the windfarm control stage, at least one manipulated variable based on the at least one control error,
outputting the at least one manipulated variable at a manipulated variable output for transmission to the plurality of wind power installations,
receiving, at a state input of the windfarm control stage, one or more park signals including a farm state, wherein the one or more park signals are data signals, and are received from the plurality of wind power installations, wherein the one or more park signals include information on changes in the plurality of wind power installations functioning as actuators, and wherein the farm state is recorded in at least one of the plurality of wind power installations, the farm state being indicative of a state of at least one of:
a number of wind power installations installed in the windfarm;
a rated active power of each wind power installation;
a rated reactive power of each wind power installation;
a number and properties of STATCOM installations present in the windfarm;
a number and properties of battery stores present in the windfarm;
transmission properties of an internal farm network;
active and reactive power relations of each wind power installation;
an availability of each wind power installation;
an operating state of each wind power installation;
an ambient wind speed at one or more of the wind power installations;
an ambient wind direction at one or more of the wind power installations;
an ambient gustiness of wind at one or more of the wind power installations;
an ambient air density of the wind at one or more of the wind power installations;
an ambient air humidity of the wind at one or more of the wind power installations; and
an ambient temperature of the wind at one or more of the wind power installations, altering, by a controller setting device, at least one controller parametrization or controller structure of the at least one controller based on the farm state in response to the changes in the plurality of wind power installations functioning as the actuators, and
altering the at least one controller parametrization or controller structure of the at least one controller before a start-up or during operation of the windfarm or a wind power installation of the plurality of wind power installations,
wherein the information on changes in the plurality of wind power installations functioning as actuators in the one or more park signals includes:
a present availability of active current for feeding-in for each wind power installation of the plurality of wind power installations,
a present availability of reactive current for feeding-in for each wind power installation of the plurality of wind power installations, and
a present operating state of each wind power installation of the plurality of wind power installations, the present operating state including:
presently feedable active power, and
presently feedable reactive power.
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