Patent ID: 11898540
Assignee: WOBBEN PROPERTIES GMBH
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  H  Y | IPC F

Claim 13:
14. A method for feeding electrical power into an electrical supply network using a converter-controlled infeed apparatus that feeds the electrical power into the electrical supply network using at least one converter, comprising:
feeding, by the converter-controlled infeed apparatus, the electrical power into a local network section of the electrical supply network at a network connection point, wherein:
the electrical supply network includes:
a plurality of infeed apparatuses including the converter-controlled infeed apparatus and one or more other infeed apparatuses, for feeding infeed power including the electrical power of the converter-controlled infeed apparatus, and
a plurality of consumers for consuming a consumption power, and

the local network section has a converter pervasion of at least 50%, wherein the converter pervasion is a ratio of a rated power of converter-controlled infeed apparatuses of the plurality of infeed apparatuses to a total rated power of the plurality of infeed apparatuses; and

controlling, by a controller, the feeding of the electrical power of the converter-controlled infeed apparatus depending on a network state of the electrical supply network, wherein:
the controller has a control behavior that is selected or set depending on a network characteristic of the local network section, and the network characteristic is dependent on:
at least one property of the local network section and at least one property of another network section of the electrical supply network, the other network section being coupled to the local network section, or
the at least one property of the local network section and a determination that another network section is not coupled to the electrical supply network,

wherein the control behavior is set depending on a voltage softness of the local network section or a superordinate network section of the local network section that has a higher voltage than the local network section, and
wherein the voltage softness is a reciprocal of a quotient between:
a value of a relative reactive power change as change in total reactive power fed into the local network section, relative to a maximum reactive power configured to fed into the local network section, and
a value of a relative voltage change resulting from the change in the fed-in reactive power at a reference point of the local network section.