Patent ID: 7606638

Claim:
A windpark, comprising: at least two wind energy installations, each of which installations comprises a rotor, a generator driven by the rotor and a control device, and which are connected via connecting lines to a main line, the windpark further comprising a linking point which connects the main line to a power transmission network, a parkmaster which is configured for power factor control and has communication lines for transmission of control signals to the wind energy installations, and a distributed regulator comprising a higher-level regulator located at the parkmaster which is configured to determine a nominal voltage in order to set a global power coefficient for the power which is emitted to the power transmission network and to emit the nominal voltage as a signal via the communication lines and a lower-level regulator at each of the wind energy installations which is configured to calculate a local wattless-component nominal value from the signal for the nominal voltage, to detect an actual emitted voltage from the wind energy installation and to correct the local wattless-component nominal value after comparison with the nominal voltage.