Patent ID: 11916392
Assignee: VESTAS WIND SYSTEMS A/S
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 15:
16. A method for controlling a power plant including a plurality of generator units that are connected to an electrical grid at a single shared connection point, the method comprising:
generating a rotating reference frame for complex current demanded by the electrical grid with a first real axis and a second an imaginary axis;
synchronizing clocks included in generator controllers associated with each generator unit of the plurality of generator units;
measuring a demand of the electrical grid at the connection point, wherein the demand of the electrical grid comprises:
an active power demand,
a reactive power demand, and
a voltage magnitude to supply to the electrical grid per a grid code;

calculating, based on the voltage magnitude, the active power demand, and the reactive power demand, a needed current at the connection point and dividing the needed current into a first connection point value and a second connection point value; and
dispatching the first connection point value and the second connection point value to the generator controllers, such that the generator controllers are enabled to rotate the reference frame to calculate a first generator side current set point and a second generator side current set point and set an associated generator unit accordingly.