Patent ID: 8190300
Filing Date: 2012-05-29
Classification: F03D,F05B,Y02E

Abstract:
1. A method for operating a wind farm having two or more wind energy plants, which has a farm control which presets a desired value for an electric variable of the wind farm to be generated, wherein the farm control continuously calculates an average increase of an actual value of the electric variable for at least one predetermined time interval and compares it with a maximum value of the electric variable in the predetermined time interval, the farm control determines a new desired value of the electric variable, if the average increase of the actual values of the electric variable was lower than the maximum value of the electric variable in each of the predetermined time intervals by determining a proposal for a desired value for each predetermined time interval from the actual values averaged over the predetermined time interval, plus the maximum value for an increase of the electric variable in the predetermined time interval multiplied by a gradient factor, wherein the gradient factor is greater than zero and smaller than one, and selecting the new desired value of the electric variable as the a minimum of plural proposals for the desired value.