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US 10,948,527 B2Granted
Power system detection of sustained oscillations based on synchrophasor frequency measurements
AssigneeUniversity of Tennessee Research Foundation
InventorsYilu Liu, Ling Wu, Wenpeng Yu
Life of this patent
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Abstract
A method includes performing by a processor: receiving a plurality of power system phase angle measurements over a time interval from a plurality of phasor measurement units (PMUs) in a power system, generating a phase angle curve over the time interval based on the plurality of power system phase angle measurements, and detecting a sustained oscillation event in a power signal generated by the power system based on an envelope of the phase angle curve.
Claims20
A method comprising:
- performing by a processor:
- receiving a plurality of power system phase angle measurements over a time interval from a plurality of phasor measurement units (PMUs) in a power system;
- generating a phase angle curve over the time interval based on the plurality of power system phase angle measurements;
- and
- detecting a sustained oscillation event in a power signal generated by the power system based on an envelope of the phase angle curve.
2 more elements
A system, comprising:
- a processor;
- and
- a memory coupled to the processor and comprising computer readable program code embodied in the memory that is executable by the processor to perform operations comprising:
- receiving a plurality of power system phase angle measurements over a time interval from a plurality of phasor measurement units (PMUs) in a power system;
- generating a phase angle curve over the time interval based on the plurality of power system phase angle measurements;
- and
- detecting a sustained oscillation event in a power signal generated by the power system based on an envelope of the phase angle curve.
4 more elements
A computer program product, comprising:
- a tangible computer readable storage medium comprising computer readable program code embodied in the medium that is executable by a processor to perform operations comprising:
- receiving a plurality of power system phase angle measurements over a time interval from a plurality of phasor measurement units (PMUs) in a power system;
- generating a phase angle curve over the time interval based on the plurality of power system phase angle measurements;
- and
- detecting a sustained oscillation event in a power signal generated by the power system based on an envelope of the phase angle curve.
2 more elements
Dependencies are inferred from the claim text.