System and method for continuous monitoring of sub-synchronous oscillations

A power quality meter (PQM), comprising:

• at least one sensor operative to measure power information to determine power quality data for power distributed via a plurality of electrical distribution equipment of an electrical power system, the power quality data comprising power waveform information;
• and
• a sub-synchronous oscillation (SSO) management system operative to:
• compute FFT information by performing Fast Fourier transform (FFT) on the power waveform over a time window for a resolution target for a number of samples, the FFT information comprising a plurality of frequency domain bins comprising a bin for each of the number of samples,
• identify at least one SSO peak above a peak threshold from the frequency domain bins, and
• determine a presence of SSO based on the at least one SSO peak.

A sub-synchronous oscillation (SSO) management system, comprising:

• at least one memory storing instructions;
• and
• at least one processor circuitry, communicatively coupled to the at least one memory, operative to execute the instructions to:
• access power waveform information of the power quality data,
• perform Fast Fourier transform (FFT) on the power waveform over a time window for a resolution target for a number of samples to compute FFT information comprising a plurality of frequency domain bins comprising a bin for each of the number of samples,
• identify at least one SSO peak above a peak threshold from the frequency domain bins, and
• determine a presence of SSO based on the at least one SSO peak.