Implementation of Goertzel Algorithm for low cost Synchrophasor Design

Presented work is the solution for design of low cost synchrophasor devices. To accomplish this by harnessing the primary advantages of two popular algorithms, the zero-crossing detection (ZCD) and Discrete Fourier Trasnform (DFT) based Goertzel algorithm, an accurate and simple synchrophasor and frequency measurement algorithm is presented. Design parameters are optimized for the implementation of algorithm on a low cost device like Raspberry Pi. The performance validation of the proposed algorithm is done by different tests mentioned in IEEE synchrophasor standards, using simulations and experimental data measured by Raspberry Pi board. The accuracy of measurements and low processing time provides clear affirmation that the presented design is appropriate for prototyping a PMU with future development.