Development of High Voltage High Frequency Resonant Inverter Power Supply for Atmospheric Surface Glow Barrier Discharges

IEEE Trans. Power Electron.

et al. 2013

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.

Section: Designmentioning

confidence: 99%

“…To calculate the values of L 1 and C 1 , choose A v 1 = 50, and f = 33 kHz. These values are substituted into (10) and (12). The input impedance of the circuit is zero at the resonance condition (12).…”

Section: Designmentioning

confidence: 99%

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

Amjad

IEEE Trans. Power Electron.

et al. 2013

“…It is crucial to estimate the maximum voltage applied to the chamber to avoid the dielectric breakdown. However, it is very difficult to determine by mathematical analysis because it depends on many factors such as chamber dimensions, geometrical shapes of electrode, electric field inside the discharge gap, temperature, frequency, pressure, and humidity [2][3][4][5]8]. In view to these limitations, empirical approach is sought.…”

Section: Dielectric Materialsmentioning

confidence: 99%

“…A high frequency ac power supply provide a lower voltage to generate ozone [4,5]. The main advantage of having a lower applied voltage is the opportunity to build ozone generators using nonconventional dielectric materials which have much lower dielectric breakdown voltage such as mica, alumina ceramic, and polymer.…”

Section: Introductionmentioning

confidence: 99%

A New Type of Planar Chamber for High Frequency Ozone Generator System

Buntat

2014

AMR

This paper proposes a new type of planar chamber ozone generation operated at atmospheric pressure, ambient temperature and high frequency. The chamber was constructed in planar type with easy adjustment using simple filler material and arrangement for different type of electrodes. A prototype was developed based on study to find the most effective geometrical electrode shape and dielectric material to produce micro-discharges without additional discharge gas, low pressure and temperature.. The works were initially carried out by theoretical analysis and finite element simulations to find the best geometrical shape for the electrode and to prove theoretical prediction, the experimental works were set up to determine the preferable dielectric to be used along with the electrode. Finally, the best combination was revealed by using muscovite mica and aluminium mesh on copper plate to start generating ozone at 785 Volt and 30 kHz. This planar prototype chamber successfully delivered the highest ozone yield more than 3000 ppm and 120 g/kWh. Due to the simplicity and low cost design, this planar chamber can be suitably used for portable and home appliance.

Design and implementation of a low cost, high yield dielectric barrier discharge ozone generator based on the single switch resonant converter

Amjad

et al. 2013

IET Power Electronics

This work proposes a low cost ozone generator which is capable of producing high ozone yield. Its dielectric barrier discharge planar-shaped chamber is constructed using common materials; the electrodes are made of aluminium mesh and copper plate, whereas muscovite mica is used as the dielectric. The availability of thin mica sheet ( < 1 mm) allows for the lowering of the initiation voltage without the use of discharge gas. The chamber is fed by a high-voltage power supply that utilises the single switch resonant converter topology with ferrite transformer. To validate the idea, an experimental prototype ozone generator is designed and constructed. The generator is fed by a low-voltage DC power supply (8-17 V) and does not require water or air-cooling for its chamber. Despite its small footprint, the maximum achievable ozone yield is 120 g/kWh at 2.0 l/min, with measured efficiency of 75%. Finally, the performance of the proposed generator is critically evaluated in comparison with several important works in the same area.