Importance

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Abstract

There is provided a control system for controlling power transmission associated with a first wind turbine. The control system is configured to: monitor an alternating current, AC, phase angle associated with the first wind turbine and/or monitor a rate of change of the AC phase angle associated with the first wind turbine; determine whether there is a change in the AC phase angle which is above a first threshold value and/or determine whether the rate of change of the AC phase angle is above a second threshold value; and in response to determining that there is a change in the AC phase angle which is above the first threshold value and/or the rate of change of the AC phase angle is above the second threshold value, cause the first wind turbine to operate its dynamic braking system, DBS, to reduce an instantaneous power output of the first wind turbine.

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First Claim