Patent ID: 11870265
Assignee: WOBBEN PROPERTIES GMBH
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  F  Y | IPC F  H

Claim 4:
5. The method as claimed in claim 1, comprising:
setting a lower cut-off voltage and an upper cut-off voltage based on the network fault and/or the power limit to limit the intermediate circuit voltage, wherein the upper cut-off voltage is greater than the lower cut-off voltage by a band gap that is variable;
discharging electrical energy from the DC voltage intermediate circuit using the chopper circuit in response to the intermediate circuit voltage reaching the lower cut-off voltage; or
discharging additional electrical energy from the DC voltage intermediate circuit using the chopper circuit inversely proportionally to a difference between the intermediate circuit voltage and the upper cut-off voltage.