Ut-battelle, Inc.

Thomas J King, Jr

Yilu Liu

Wenxuan Yao

Lingwei Zhan

He Yin

Fuhua Li

Bailu Xiao

A system determines the frequency of grid signals corresponding to an electrical grid in real time. The system includes a transient detector that monitors a grid signal from a voltage meter or a current meter connected to the electrical grid. The system produces, in real time and at a sampling rate, a deviation signal indicative of a periodicity of the monitored grid signal. The system determines, over one or more cycles of the monitored grid signal, a measurement signal corresponding to the deviation signal. The system determines a frequency signal that corresponds a frequency estimation of the monitored signal by applying a frequency estimation when values of the measurement signal are less than a deviation threshold and maintaining the frequency signal at a constant value when values of the measured signal equal or exceeds the deviation threshold.

Growing community of inventors

Oak Ridge, TN, United States of America

Thomas J King, Jr