Ut-Battelle, Inc.

The University of Tennessee Research Foundation

Daniel J King

Yilu Liu

Wenxuan Yao

Lingwei Zhan

Jiecheng Zhao

Thomas J King

Andrew N Herron

A synchrophasor measurement method for a device configured to take synchronized measurements in a power system is provided. The synchrophasor measurement method includes receiving global positioning system (GPS)-synchronized samples of a signal sensed by the device from the power system; determining a level of distortion of the signal; selecting, based on the level of distortion, a computation method, the computation method being one of an improved zero-crossing (IZC) method and an enhanced phase-lock-loop (EPLL) method; performing the selected computation method to determine at least one parameter of the signal at a reporting frequency, which is at least twice a line frequency of the power system; and outputting, at the reporting frequency, the at least one parameter to an operator of the power system to allow the operator to perform at least one of a monitoring and a controlling of at least one element of the power system.

Synchrophasor measurement method for power systems

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Powell, TN, United States of America

Daniel J King