Optimizing the Operation of DBD Excilamps

Florez, David; Díez, Rafael; Piquet, Hubert

doi:10.1109/tps.2016.2568461

Cited by 6 publications

(6 citation statements)

References 27 publications

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“…These operating points are selected on the basis of previous researches concerning the DBD lamps operation and the impact of the operating point over their performance [17]. After characterization of the employed DBD lamp an equivalent electrical model with C d = 80 pF, C g = 30 pF, and V th = 1350 V was obtained [15].…”

Section: Dbd Lamp Excitation Methodsmentioning

confidence: 99%

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Efficiency of an Exciplex DBD Lamp Excited Under Different Methods

Florez¹,

Schitz²,

Piquet³

et al. 2018

IEEE Trans. Plasma Sci.

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OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. Abstract-Three different electrical generators have been designed and used to supply an exciplex dielectric barrier discharge lamp in order to elucidate the influence of each one of these supplying strategies over the system performance; the first method consists on supplying the lamp with short bipolar voltage pulses; the second and third methods are based on semiresonant converters were current pulses, of controlled duration and magnitude, are injected into the lamp. For each one of the generators, measurements of the lamp and supply efficiency, are performed and analyzed, at different levels of power (up to 130 W) and operating frequencies (60-90 kHz). From the experimental results, the pulsed voltage-mode approach has allowed obtaining the highest lamp efficiency (7%), yet the maximum supply efficiency is offered by the resonant mode supplies. On the basis of the lamp and the supply efficiencies, the whole system performance is analyzed.Index Terms-Dielectric-barrier discharge (DBD), exciplex lamp, pulsed voltage, resonant converter, ultraviolet.

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Section: Dbd Lamp Excitation Methodsmentioning

confidence: 99%

“…As reported in [17], the lamp temperature has a strong impact over the UV radiation; hence for this paper, the external electrode temperature is kept around 40°C. For a sealed-off DBD bulb, expected lifetime is around 8000 h [27]; therefore, the lamp aging during these experiments is neglected.…”

Section: Performance Analysismentioning

confidence: 99%

Efficiency of an Exciplex DBD Lamp Excited Under Different Methods

Florez¹,

Schitz²,

Piquet³

et al. 2018

IEEE Trans. Plasma Sci.

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“…Furthermore, very high frequencies produce a low‐energy conversion in the DBD lamp. Therefore, based on some previous work presented in [28], Table 1 details the selected operating point.…”

Section: Optimum Transformer Turns Ratiomentioning

confidence: 99%

Optimum transformer turns ratio for the power supply of dielectric barrier discharge lamps

Rueda

Díez

Piquet

2018

IET Power Electronics

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This study is focused on studying a resonant current converter for the electrical supply of dielectric barrier discharge devices. To understand the impact of parasitic capacitances and incorporate them into the design of an optimised power supply, this approach theoretically analyses a boost-based resonant converter, considering switch capacitance and analysing the impact of the transformer turns ratio on the system's electrical efficiency. The theoretical loss analysis shows a considerable variation in efficiency for different transformer turns ratios (between 38 and 90%). At low turns ratios, most of the losses are caused by switching, whereas at high turns ratios, the conduction losses outweigh the switching losses. The impact of the transformer stray capacitance is analysed via simulation and the optimised converter is used for the experimental validation of the theoretical study.

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“…The practical usefulness and applicability of currently available DBD excilamps has been demonstrated [16,21]; today, studies oriented toward their performance improvement are in development. This can be achieved by means of the reactor design optimization (geometry, filling mixture, pressure and materials) [3,6,11,17,24], and also by choosing the proper electrical operating conditions [4,8,13,14,18,19,25]. The approach developed in this paper is aimed at performing system level optimization, integrating in the same step DBD reactor and power supply designs.…”

Section: Introductionmentioning

confidence: 99%

“…From previous works a significant impact of the supplying conditions over the lamps performance has been evidenced. Particularly, the methodology proposed in [8,13] makes use of a square-shape current waveform for the parametric study of DBDs. By means of the lamp current waveform (i D B D ), the lamp power can be controlled with three degrees of freedom (DOFs): duty cycle (D), current intensity (I) and frequency (f ) of the current pulses, as shown in Fig.…”

Section: Introductionmentioning

confidence: 99%