Vestas Wind Systems A/s

Siemens Energy Global Gmbh & Co. Kg

Joachim Steinkohl

Henrik Møller

Heinrich Von GEYMÜLLER

Jürgen Lottes

A power plant controller for a renewable energy power plant comprising a plurality of renewable energy generators is configured to: receive a signal indicative of a voltage level of the power network to which the power plant is connected; receive a plurality of signals from the plurality of renewable energy generators, each signal being indicative of a voltage level of a respective renewable energy generator; and determine, for each of the plurality of renewable energy generators, a respective reactive power set point based on: the indicated voltage level of the power network; the indicated voltage level of that renewable energy generator; and a reference voltage level based on the indicated voltage levels of the plurality of renewable energy generators; and dispatch each determined reactive power set point to a respective local controller associated with the respective renewable energy generator for controlling that renewable energy generator.

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Aarhus C, Denmark

Joachim Steinkohl