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

Claim 8:
9. A non-transitory, computer readable medium, comprising instructions configured to be executed by one or more processors to cause operations comprising:
obtaining electrical measurements of a power system;
determining a scaled energy value of a first set of the electrical measurements that is scaled with respect to a second set of electrical measurements;
determining that a potential ringdown event occurred by comparing the scaled energy value of the first set of electrical measurements to a threshold energy value;
determining a scaled error value by comparing the electrical measurements to a ringdown model;
determining that the potential ringdown event is a confirmed ringdown event by comparing the scaled error value to a threshold error value;
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.