Determine Disturbance Locations in Power Grids using Bicubic 2D Interpolation on Electromechanical Wave-front Propagation Delay

TL;DR

This paper introduces a robust, visualization-friendly method for locating disturbances in power grids by analyzing electromechanical wave propagation delays using bicubic 2D interpolation on wide-area synchrophasor data.

Contribution

It proposes a novel approach utilizing bicubic 2D interpolation to accurately determine disturbance locations and propagation speeds in power systems, applicable to various measurement systems.

Findings

Successfully located disturbances in power grids

Generated electromechanical wave speed distribution

Applicable to multiple wide-area measurement systems

Abstract

This study presents a method to locate power system disturbance using wide-area synchrophasor measurements. The merits of the proposed method include robustness and easy for visualization. In addition, the proposed method facilitates the calculation of electromechanical wave propagation speed distribution. An example of locating the disturbance and generating the propagation speed distribution is demonstrated based on FNET/GridEye, a distribution-level wide-area measurement system. Without losing generality, the proposed method can be implemented in any other wide-area measurement systems.