Patent ID: 11870243
Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/S
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 8:
9. A renewable power generation plant comprising;
a power converter for connecting the renewable power generation plant to a power transmission network;
a circuit breaker arrangement between the power converter and the power transmission network, comprising a circuit breaker for each phase of the renewable power generation plant; and
a converter controller configured to generate control signals for the power converter and control signals for the circuit breaker arrangement; wherein, the converter controller further comprises a fault detection module configured to detect the occurrence of a phase-to-ground fault event in a single phase of the power transmission network, and wherein the converter controller is configured to issue control signals to the circuit breaker arrangement to keep the circuit breakers closed during the phase-to-ground event, and to issue control signals to the power converter to ride through the phase-to-ground fault event.