Corona Discharge Surface Treater Without High Voltage Transformer

Burany, N.; Huber, L.; Pejović, Predrag

doi:10.1109/tpel.2007.915760

Cited by 24 publications

(12 citation statements)

References 10 publications

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“…The phase difference between the voltage and the current waveforms (which are sinusoids) of the chamber is measured by an oscilloscope. The output power of the chamber is calculated by multiplying the power factor and voltage-current [32]. The maximum inverter efficiency achieved is about 92% at the chamber power of 6.5 W. This efficiency is high when compared to other works (see, for example, [11], [20], and [45]).…”

Section: Simulation and Experimental Resultsmentioning

confidence: 85%

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Analysis and Implementation of Transformerless LCL Resonant Power Supply for Ozone Generation

Amjad

Salam

Facta

et al. 2013

IEEE Trans. Power Electron.

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Abstract-This paper describes the analysis and design of an LCL resonant power supply for ozone generation. The main advantage of the proposed topology is the absence of high-voltage transformer; the high voltage gain is achievable by means of doubleresonance phenomena. Furthermore, the bandwidth is wider than the ordinary LC and its phase difference is constant over specific frequency range; as a result, an open-loop operation can be implemented. The complete analysis and design procedure of the power supply is presented. The design procedure is verified by implementing the power supply to drive a dielectric barrier discharge prototype ozone chamber. The hardware results are found to be in close agreement with simulation and thus justify the validity of the design procedures. The proposed circuit is suitable for portable ozone power supply fed by low-voltage source such as battery or photovoltaic module.Index Terms-Dielectric barrier discharge (DBD), full-bridge inverter, high-voltage power supply, LCL resonant circuit, ozone generation.

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Section: Simulation and Experimental Resultsmentioning

confidence: 85%

“…However, for an ordinary LC circuit, a sufficiently high voltage gain cannot be achieved unless the power supply is fed by the single-or three-phase utility supply [32]. This restricts the availability of the ozone generator to premises with utility power outlets.…”

mentioning

confidence: 99%

Analysis and Implementation of Transformerless LCL Resonant Power Supply for Ozone Generation

Amjad

Salam

Facta

et al. 2013

IEEE Trans. Power Electron.

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“…The dc input power is measured by placing a power analyzer (Voltech PM6000) between the dc programmable supply (Instek PSH-6018) and the inverter. Since the voltage and the current waveforms of the chamber are sinusoidal, the power consumed in the chamber is calculated by multiplying the voltage-current by a power factor [40]. The maximum calculated efficiency is 93% at a chamber voltage of 3.7 kVp-p.…”

Section: Simulations and Experimental Resultsmentioning

confidence: 99%

Analysis, Design, and Implementation of Multiple Parallel Ozone Chambers for High Flow Rate

Amjad

Salam

2014

IEEE Trans. Ind. Electron.

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It is well known that ozone concentration depends on air/oxygen input flow rate and power consumed by the ozone chamber. For every chamber, there exists a unique optimum flow rate that results in maximum ozone concentration. If the flow rate is increased (beyond) or decreased (below) from this optimum value, the ozone concentration drops. This paper proposes a technique whereby the concentration can be maintained even if the flow rate increases. The idea is to connect n number of ozone chambers in parallel, with each chamber designed to operate at its optimum point. Aside from delivering high ozone concentration at high flow rate, the proposed system requires only one power supply to drive all these (multiple) chambers simultaneously. In addition, due to its modularity, the system is very flexible, i.e., the number of chambers can be added or removed as demanded by the (output) ozone requirements. This paper outlines the chamber design using mica as dielectric and the determination of its parameters. To verify the concept, three chambers are connected in parallel and driven by a single transformer-less LCL resonant power supply. Moreover, a closed-loop feedback controller is implemented to ensure that the voltage gain remains at the designated value even if the number of chambers is changed or there is a variation in the components. It is shown that the flow rate can be increased linearly with the number of chambers while maintaining a constant ozone concentration.Index Terms-Dielectric barrier discharge (DBD), high-voltage power supply, ozone chamber, ozone concentration, resonant inverter.

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“…The corona discharge with a dielectric barrier corona discharge (DBCD) load in air pressure is widely used for surface characteristic modification of various materials, such as glass, polypropylene and textiles. This is because the corona discharge generates multiple active particles [1–4], which are able to react with the materials surface to increase the surface tension energy and create an affinity to inks, glues and other coatings.…”

Section: Introductionmentioning

confidence: 99%

Analysis and design of pulse frequency modulation discontinuous‐current‐mode dielectric barrier corona discharge with constant applied electrode voltage

Guo

Hao

Zhang

et al. 2014

IET Power Electronics

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In dielectric barrier corona discharge (DBCD) used in material surface treatment, how to obtain a constant peak applied electrode voltage when regulating the power is an important issue as the voltage considerably influences the discharge stability and characteristics. In this study discontinuous current mode (DCM) is used in DBCD for surface treatment. The peak applied electrode voltage is constant when the output power is regulated with pulse frequency modulation, which is simpler than conventional control schemes. Moreover, the power regulation is linear with the operating frequency. Thus, the close‐loop design is much easier. Moreover, zero‐current‐switch turn‐on and zero‐voltage‐zero‐current‐switch turn‐off are achieved with a high frequency and power density. The time‐domain analysis is simple in DCM and the expressions for key parameters, in terms of the tank gain and the capacitance ratio, are presented. The conduction loss is confirmed to be relatively low in DCM because of the essential characteristic of DBCD load. A design procedure is presented and the magnetic integration technique is used for specified transformer leakage inductance. The accuracy of the deduced expressions and design methodologies is verified by simulation and experimental results.

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Corona Discharge Surface Treater Without High Voltage Transformer

Cited by 24 publications

References 10 publications

Analysis and Implementation of Transformerless LCL Resonant Power Supply for Ozone Generation

Analysis and Implementation of Transformerless LCL Resonant Power Supply for Ozone Generation

Analysis, Design, and Implementation of Multiple Parallel Ozone Chambers for High Flow Rate

Analysis and design of pulse frequency modulation discontinuous‐current‐mode dielectric barrier corona discharge with constant applied electrode voltage

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