CPC H02J 3/381 (2013.01) [H02J 3/16 (2013.01); H02J 3/46 (2013.01); H02J 2300/20 (2020.01); H02J 2300/24 (2020.01)] | 10 Claims |
1. A method for regulating a decentralized energy generating system with a plurality of inverters (IN), wherein a infeed of energy into a grid is determined by a central control unit (PPC), the method comprising:
receiving at the PPC a detected active power, reactive power and voltage amplitude at a grid connection point (PCC) of the decentralized energy generating system; and
regulating, in a normal operating mode of the decentralized energy generating system, the reactive power and the detective active power to target values; and
reducing, in a special operating mode of the decentralized energy generating system, an active power at the PCC when the following three criteria are satisfied at the PCC in a predetermined time interval:
a decrease in the voltage amplitude by more than a predetermined first threshold value;
an active power increase by more than a predetermined second threshold value; and
a reactive power change which does not exceed a predetermined third threshold value.
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