Discharge characteristics and ozone generation analysis of dual-power excited three-electrode DBD

Ying Chen; Mengji Fu; Kefeng Shang

doi:10.1117/12.2640528

19 October 2022 Discharge characteristics and ozone generation analysis of dual-power excited three-electrode DBD

Ying Chen, Mengji Fu, Kefeng Shang

Proceedings Volume 12294, 7th International Symposium on Advances in Electrical, Electronics, and Computer Engineering; 1229417 (2022) https://doi.org/10.1117/12.2640528
Event: 7th International Symposium on Advances in Electrical, Electronics and Computer Engineering (ISAEECE 2022), 2022, Xishuangbanna, China

Abstract

Compared with surface dielectric barrier discharge (SDBD), volume dielectric barrier discharge (VDBD) generates a wider range of plasma space, but the initial discharge voltage is higher, which is not conducive to the generation of discharge. Therefore, this paper proposes a dual-power excitation three-electrode DBD discharge device. On the basis of the traditional single-frequency excitation two-electrode volume DBD device, a third electrode powered by a high-frequency power supply is added to form a dual-power excitation three-electrode surface/ volume composite DBD device, which can reduce the initial discharge voltage of VDBD and improve active substance production. In this paper, the effects of the two discharge structures on the discharge characteristics and ozone generation characteristics of the device are mainly studied. The current graphs, discharge images, and power measurements show that compared with the single-frequency excitation two-electrode volume DBD, the dual-power excitation three-electrode composite DBD has more discharge channels, resulting in higher ozone concentrations. When the discharge gap is 2.8mm, the applied power frequency voltage is 16kV, and the high frequency voltage is 1kV, the volume discharge power and total discharge power of the three-electrode SVDBD excited by the dual-power excitation are 1.05 times and 1.16 times of that of the two-electrode VDBD excited by the single frequency excitation, respectively.

Citation Download Citation

Ying Chen, Mengji Fu, and Kefeng Shang "Discharge characteristics and ozone generation analysis of dual-power excited three-electrode DBD", Proc. SPIE 12294, 7th International Symposium on Advances in Electrical, Electronics, and Computer Engineering, 1229417 (19 October 2022); https://doi.org/10.1117/12.2640528

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KEYWORDS

Ozone

Dielectrics

Electrodes

Energy efficiency

Plasma

Power supplies

Plasma generation

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