Evaluation of power quality in type A and type F LED luminaires under different operating regimes in compliance with IEC 61000-4 and EN 50160 Standards
DOI:
https://doi.org/10.37431/conectividad.v7i2.427Keywords:
Power quality, Harmonic distortion, Flicker, IEC 61000, EN 50160Abstract
The power quality performance of two residential LED luminaires, denoted LED A and LED F, was assessed using a Class-A power quality analyzer compliant with IEC 61000-4-30 over four continuous and cyclic 24-h operating regimes. The total harmonic distortion of voltage (THDV), third-order harmonic (h3_V), and long-term flicker (Plt) were quantified according to IEC 61000-4-7 and IEC 61000-4-15. THDV values ranged from 4 % to 6.1 %, within the typical limits for low-voltage networks. Nevertheless, LED A exceeded the Plt = 1.0 threshold under continuous operation (Plt = 1.74) and the 1 h ON / 2 s OFF regime (Plt = 3.26), indicating higher flicker susceptibility and potential visual discomfort. Conversely, LED F maintained Plt < 1 across all operating modes, showing superior performance against voltage fluctuations. The results highlight differences in driver topology and emphasize the need to evaluate voltage power-quality behavior in LED lighting for residential environments.
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