Wind park power oscillation control

A controller for controlling power oscillations at a point of common coupling of multiple wind turbines in a wind park, the controller being operatively coupled to respective wind turbine controllers of the multiple wind turbines and configured to perform an operation, comprising:

• receiving, from respective wind turbine controllers of the multiple wind turbines, individual power reference offsets, each individual power reference offset defining an adjustment to a wind turbine power reference signal for counteracting mechanical oscillations in the respective wind turbines,
• based on the individual power reference offsets, determining an aggregated power reference offset,
• based on the aggregated power reference offset, determining a total power oscillation compensation signal,
• based on the individual power reference offsets and the total power oscillation compensation signal, determining individual power oscillation compensation signals for adjusting the wind turbine power reference signal of the respective wind turbines, and
• sending the individual power oscillation compensation signals to the wind turbine controllers of the respective wind turbines.

A non-transitory computer readable medium storing instructions which, when executed by a computer, cause the computer to perform an operation for controlling power oscillations at a point of common coupling of multiple wind turbines in a wind park, the operation comprising:

• receiving, from respective wind turbine controllers of the multiple wind turbines, individual power reference offsets, each individual power reference offset defining an adjustment to a wind turbine power reference signal for counteracting mechanical oscillations in the respective wind turbines,
• based on the individual power reference offsets, determining an aggregated power reference offset,
• based on the aggregated power reference offset, determining a total power oscillation compensation signal,
• based on the individual power reference offsets and the total power oscillation compensation signal, determining individual power oscillation compensation signals for adjusting the wind turbine power reference signal of the respective wind turbines, and
• sending the individual power oscillation compensation signals to the wind turbine controllers of the respective wind turbines.