A unipolar compact nanosecond pulsed power supply with high power factor for dielectric barrier discharge applications

Tang, Xiongmin; Jiang, Tianhong; Fang, Wenrui

doi:10.1063/5.0089020

Cited by 3 publications

(1 citation statement)

References 36 publications

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“…Polydimethylsiloxane (PDMS) is chosen as the precursor, as it is the most widely used reagent in industrial applications for the deposition of siloxane-like films due to its chemical inertness, low toxicity, and high saturation vapor pressure. The nanosecond pulse power supply is used for its strong reduced electric field, with large initial electron density and high electron energy, which promote the fragmentation and polymerization of the precursor [18][19][20]. The surface treatment of ceramic materials is performed by adding different concentrations of PDMS to obtain optimal condition.…”

Section: Introductionmentioning

confidence: 99%

Wet flashover voltage improvement of the ceramics with dielectric barrier discharge

Huang

Xie²,

Zhou

et al. 2023

Plasma Sci. Technol.

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Surface modification techniques with plasma are widely investigated to improve the surface insulation capability of polymers under dry conditions, while the relationship between treatment method, surface physical and chemical properties, and wet flashover voltage is still unclear for inorganic ceramics. In this paper, the surface insulation properties of ceramics under wet conditions are improved using nanosecond-pulsed dielectric barrier discharge with PDMS as the precursor. The relationships between PDMS concentration and the water contact angle, dry and wet flashover voltages are obtained to acquire the optimal concentration. The surface charge dissipation test and surface physio-chemical property measurement with SEM, AFM, XPS are carried out to further explore the mechanism of surface insulation enhancement. The results show that film deposition with micron thickness and superhydrophobicity occurs at the PDMS concentration of 1.5%. The dry flashover voltage is increased by 9.6% due to the induction of deep traps, while the wet flashover voltage is increased by 66.7%. The gap between dry-wet flashover voltage is decreased by 97.4% compared with the untreated one due to the self-cleaning effect.

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Section: Introductionmentioning

confidence: 99%

Wet flashover voltage improvement of the ceramics with dielectric barrier discharge

Huang

Xie²,

Zhou

et al. 2023

Plasma Sci. Technol.

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A pulsed bipolar current-mode power supply with high power factor in a single stage for dielectric barrier discharge application

Tang,

Zhou,

Chen

et al. 2024

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Purpose Dielectric barrier discharge (DBD) is widely used in the treatment of skin disease, surface modification of material and other fields of electronics. The purpose of this paper is to design a high-performance power supply with a compact structure for excimer lamps in electronics application. Design/methodology/approach To design a high-performance power supply with a compact structure remains a challenge for excimer lamps in electronics application, a current-source type power supply in a single stage with power factor correction (PFC) is proposed. It consists of an excitation voltage generation unit and a PFC unit. By planning the modes of the excitation voltage generation unit, a bipolar pulse excitation voltage with a high rising and falling rate is generated. And a high power factor (PF) on the AC side is achieved by the interaction of a non-controlled rectifier and two inductors. Findings The experimental results show that not only a high-frequency and high-voltage bipolar pulse excitation voltage with a high average rising and falling rate (7.51GV/s) is generated, but also a high PF (0.992) and a low total harmonic distortion (5.54%) is obtained. Besides, the soft-switching of all power switches is realized. Compared with the sinusoidal excitation power supply and the current-source power supply, the proposed power supply in this paper can take advantage of the potential of excimer lamps. Originality/value A new high-performance power supply with a compact structure for DBD type excimer lamps is proposed. The proposed power supply can work stably in a wide range of frequencies, and the smooth regulation of the discharge power of the excimer lamp can be achieved by changing the switching frequency. The ideal excitation can be generated, and the soft switching can be realized. These features make this power supply a key player in the outstanding performance of the DBD excimer lamps application.

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A New Design of Solid-State Bipolar Nanosecond Pulse High-Frequency Discharge Power Supply for Engine Ignition System

Sun,

Hu,

Rong

et al. 2024

SAE Technical Paper Series

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<div class="section abstract"><div class="htmlview paragraph">In this study, a bipolar nanosecond pulse all-solid-state power supply was developed including Lenz capacitance (LC) resonant circuit and full-bridge inverter circuit to provide plasma ignition mode for internal combustion engines. The power supply converts the direct current (DC) voltage into voltage pulses using the inverter circuit with insulated gate bipolar transistor (IGBT), and subsequently amplifies the voltage through a pulse transformer. In the magnetic compression circuit, two capacitors were utilized to store energy simultaneously and approximately double the voltage. By exploiting the hysteresis characteristics of the magnetic switch, a nanosecond pulse output was achieved. An enhanced full-bridge inverter snubber circuit was proposed, which can effectively absorb surge voltage, with a voltage impact reduction on the primary winding of the pulse transformer to less than 1%. The newly developed bipolar nanosecond pulse power supply achieved a good performance with bipolar pulse frequency of 20 kHz and peak voltage of 7 kV, while the rising time is 550 ns and the half-height full-width duration is 420 ns. With surface dielectric barrier discharge (SDBD) load, the peak power of single pulse discharge can reach up to 35 kW, with the highest recorded value of deposited energy per pulse at approximately 0.9 mJ, and a final stable value observed at approximately 0.55 mJ, a uniform multi-streamer discharge was achieved.</div></div>

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A unipolar compact nanosecond pulsed power supply with high power factor for dielectric barrier discharge applications

Cited by 3 publications

References 36 publications

Wet flashover voltage improvement of the ceramics with dielectric barrier discharge

Wet flashover voltage improvement of the ceramics with dielectric barrier discharge

A pulsed bipolar current-mode power supply with high power factor in a single stage for dielectric barrier discharge application

A New Design of Solid-State Bipolar Nanosecond Pulse High-Frequency Discharge Power Supply for Engine Ignition System

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