Patent ID: 9496812
Filing Date: 2016-11-15
CPC Classification: F03D,H02P,Y02E

Claim Text:
1. A wind park control system for controlling a set point of an individual power output of each of a plurality of wind turbines of a wind park, wherein the wind turbines are grouped into a plurality of groups of wind turbines, the wind park control system comprising: a main control unit, and a plurality of sub control units, each sub control unit is assigned to one of a plurality of groups of wind turbines, wherein the main control unit is adapted to determine a set point for a total power output of each group of wind turbines based on a reference set point for an overall power output of the wind park and on data being indicative for current characteristics of the wind park, wherein the main control unit is further adapted to distribute the determined set points between the sub control units via main control signals being provided to the sub control units, wherein each main control signal is indicative for the set point for the total power output of the assigned group of wind turbines, wherein each sub control unit is adapted to determine a set point for an individual power output of each wind turbine of the assigned group of wind turbines, wherein each sub control unit is further adapted to distribute the determined set points between the wind turbines of the assigned group of wind turbines via sub control signals being provided to each wind turbine of the assigned group of wind turbines, wherein each sub control signal is indicative for a set point for the individual power output of a wind turbine, and wherein the main control unit comprises a main control element being adapted to receive results of measurements of the individual power output of the wind turbines and is adapted to perform a closed loop control based on the received results and the reference set point for adjusting the set point for each group of wind turbines.