Patent ID: 11971436
Assignee: BOMBARDIER PRIMOVE GMBH
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 11:
12. A system for determining a phase shift between a phase current and a phase voltage in an AC phase line of a converter that carries a corresponding phase of an AC output of the converter, wherein the system comprises at least one means for determining a phase current change dependent quantity for the AC phase line, at least one means for determining a voltage-specific reference time point for the AC phase line depending on the phase current change dependent quantity, at least one means for determining a phase current for the AC phase line, at least one means for determining a current-specific reference time point for the AC phase line depending on the phase current and at least one means for determining the phase shift depending on the time difference between the voltage-specific reference time point and the current-specific reference time point.