The IEC 61000-4-15 flickermeter has been widely accepted as an international standard for flicker severity measurement. In this paper, the implementation of an improved IEC flickermeter by an ARM microcontroller-based digital system with low cost and simple proposed prototype hardware is presented. The improvements include replacing a band-pass filter with a more appropriate filter and considering the model of various lamps. The operation of the improved flickermeter is evaluated in a simulated power system in Simulink of MATLAB software with its flicker source an arc furnace. Finally, a manipulated hardware for implementation of the improved flickermeter is proposed based on ARM microcontroller, and its performance is evaluated with some real-time experimental measurements.
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