Convolution integral for synchronized phasor

摘要

Systems, methods, and apparatus for providing a synchronized phasor in power system based on voltage and current measurements, sampling of the voltage and current measurements and convolving the samples with a function.

主权项

1. A method comprising:
receiving an input signal; providing the input signal to an analog-to-digital converter; obtaining samples of the input signal by applying a sampling frequency to the analog-to-digital converter; providing the generated samples to a frequency estimation circuit for deriving a frequency estimate of the input signal; providing the frequency estimate to a sampling period circuit for generating the sampling frequency that is applied to the analog-to-digital converter; using a clock signal to provide a timestamp upon each sample of the input signal; and convolving the timestamped samples of the input signal with a function using corresponding timestamps to generate a synchronized phasor of the input signal.