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Monitoring power quality (PQ) indicators is an important part of modern power grids' maintenance. Among different PQ indicators, flicker severity coefficients Pst and Plt are measures of voltage fluctuations. In state-of-the-art PQ measuring devices, the flicker measurement channel is usually implemented as a dedicated processor subsystem. Implementation of the IEC 61000-4-15 compliant flicker measurement algorithm requires a significant amount of computational power. In typical PQ analysers,doi:10.3390/en14061589 fatcat:n5suhlt3qzfr5cewpcy2xkcee4