Patent ID: 11894675
Assignee: SIEMENS AKTIENGESELLSCHAFT
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 6:
7. A method for operating a DC voltage grid or a wind farm connected to a DC voltage grid, wherein the DC voltage grid has an electrical conductor electrically interconnecting electrical components connected to the DC voltage grid, the electrical components comprising at least a consumer, an energy storage unit, and an energy source, the method comprising:
supplying a variable DC grid voltage between parts of the electrical conductor with an actuator receiving voltage from a voltage source that specifies the variable DC grid voltage via the actuator;
controlling and varying the DC grid voltage with the actuator in order to describe a state of the DC voltage grid;
adjusting the DC grid voltage by the actuator by either one or both of a first adjustment factor as a function of a state of charge of the energy storage unit or of a second adjustment factor as a function of a capacity utilization of the energy source;
continuously transmitting information about the state of the DC voltage grid during operation of the DC voltage grid to the electrical components connected to the DC voltage grid by the controlled and variable DC grid voltage; and
wherein the adjusted DC grid voltage is calculated by multiplying the voltage from voltage source that specifies the variable DC grid voltage by either one or both of the first adjustment factor or of the second adjustment factor.