Patent ID: 11927610
Assignee: SCHWEITZER ENGINEERING LABORATORIES, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H  Y | IPC G

Claim 16:
17. A method, comprising:
obtaining electrical measurements of a power system;
selecting a potential ringdown event based at least in part on a scaled energy value obtained from the electrical measurements;
determining a scaled error value by comparing the electrical measurements to a ringdown model;
confirming that the potential ringdown event is in fact a confirmed ringdown event based at least in part on the scaled error value of the electrical measurements;
generating one or more mode estimates from the confirmed ringdown event;
sending a signal indicating the one or more mode estimates;
determining that the power system has exceeded a reliability threshold using the generated one or more mode estimates; and
opening a circuit breaker to disconnect a portion of the power system in response to determining that the power system has exceeded the reliability threshold.