IEC Flicker Test System Implementation Based on MATLAB

This document presents the implementation methodology of an IEC flicker test system developed using MATLAB and Simulink. The system enables rapid and accurate flicker testing through simulation modeling approaches. Flicker testing serves as a critical evaluation method for assessing power system stability and reliability. The implementation leverages MATLAB's signal processing toolbox and Simulink's block diagram environment to simulate voltage fluctuations and analyze flicker severity according to IEC standards. Key algorithmic components include RMS voltage calculation, human perceptual response modeling using lamp-eye-brain chain simulation, and short-term/long-term flicker severity indices (Pst/Plt) computation. Through this IEC-compliant flicker test system, engineers can effectively analyze flicker phenomena in power systems and develop appropriate mitigation strategies. The system demonstrates significant practical value in power engineering applications, particularly for power quality assessment and grid stability improvement.