Electrode characterization in dimmed operation of fluorescent lamps

Ribas, J.; Diaz, R. E.; Calleja, A.J.; Corominas, E.L.; Garcia, J.

doi:10.1109/iecon.2010.5674929

Cited by 6 publications

(2 citation statements)

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“…This procedure is a combination of the electrode characterization described in [16] and the small-signal arc dynamic characterization procedure described in [11].…”

Section: Characterization Proceduresmentioning

confidence: 99%

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Power-Dependent Small-Signal Model for Fluorescent Lamps Based on a Double-Pole Double-Zero Transfer Function

Diaz

Ribas

Calleja

et al. 2013

IEEE Trans. on Ind. Applicat.

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In the prior literature, the small-signal incremental impedance of fluorescent lamps has been characterized using a single-pole single-zero transfer function. This transfer function provides a good estimation of the lamp dynamics at rated power. However, when this model is used at low power levels, the accuracy is severely reduced, particularly at high perturbation frequencies (5-20 kHz). In this paper, a new double-zero double-pole transfer function is used to model the lamp dynamics with great accuracy even at low power levels. The best results have been obtained using a transfer function with two real zeros and a double complex pole. Using a new characterization procedure, the small-signal model of a 26-W compact fluorescent lamp has been obtained. All the terms of the transfer function (static gain, poles, and zeros) have been calculated at different power levels. Different polynomial expressions have been used to approximate these terms as power-dependent functions. The proposed characterization procedure also allows obtaining the equivalent resistance of the electrodes. This feature has been used to measure the effect of the extra heating imposed by IEC 60901 during dimmed operation.

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“…This procedure is a combination of the electrode characterization described in [16] and the small-signal arc dynamic characterization procedure described in [11].…”

Section: Characterization Proceduresmentioning

confidence: 99%

“…These resistances are independently calculated in order to determine how they are affected by the small-signal perturbations of the arc and the heating currents [7], [8], [16].…”

Section: Characterization Proceduresmentioning

confidence: 99%