CONTROL SYSTEM AND METHOD FOR A RENEWABLE POWER PLANT

The invention refers to a control system for a power plant (100) supplying electrical energy to a utility grid (200), the power plant (100) comprising a wind farm (10) with at least one wind turbine (11-1, ..., 11-n) and a load system (20) with at least one load (21-1, ..., 21-m). Each load is configured to consume and transform energy provided from the wind farm or the utility grid (200) at each point of time. The control system comprises a frequency response system (1) for obtaining at least one electrical property data (E) of the utility grid (200) as input, the frequency response system (1) being further configured for a comparison of the obtained electrical property data (E) with respective reference values (Eref) and generating a control signal (S) in dependence of the comparison. Further, the control system is configured to reduce its power consumption during a recovery period of the utility grid (200), the recovery period immediately following the inertial response, where the control signal (S) comprises time-dependent setpoints (PSP20) for dynamically controlling the energy consumption of the load system (20) with a predetermined reduced energy consumption in comparison to the energy consumption prior to the inertial response in order to achieve a steady amount of energy supplied to the utility grid (200) as soon as the recovery period has started.