Patent ID: 11863082
Assignee: ABB SCHWEIZ AG
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 16:
17. A method for controlling a power converter, including:
measuring voltage/current at a point on a first network linking a first power source and a first terminal set of the power converter;
controlling the power converter to generate a voltage/current waveform travelling along the first network with a power supplied by a second power source linked to a second terminal set of the power converter in response to a condition that a change rate of the measurement of the voltage/current exceeds a threshold;
reading the measurements of voltage/current at the point after the condition becomes true and identifying the voltage/current waveform from the measurements; and
locating a fault on the first network in consideration of an interval between a first timing when the controller identifies the voltage/current waveform and a second timing when the controller identifies an echo of the voltage/current waveform.