NDLI: Characteristics of diffuse discharges sustained by pulsed power in open air

Content Provider	IEEE Xplore Digital Library
Author	Cheng Zhang Wenjin Yang Tao Shao Yixiao Zhou Zhongsheng Zhou
Copyright Year	2014
Description	Author affiliation: Inst. of Electr. Eng., Beijing, China (Cheng Zhang; Wenjin Yang; Tao Shao; Yixiao Zhou; Zhongsheng Zhou)
Abstract	In most case, stable, relatively uniform, and large-volume plasmas in atmospheric air are desirable for various applications. Therefore, different methods are used to obtain a diffuse discharge, among which exciting power source is a key parameter. In this paper, pulsed discharges can be produced by microsecond or nanosecond pulses in open air. Two kinds of pulsed powers are applied to the HV electrode. The home-made generators can produce repetitive microsecond pulses or nanosecond pulses of up to 30 kV, respectively. The output pulse of one generator has a rise time of 300-500 ns and a full width at half maximum (FWHM) of about 6-10 μs. The output pulse of the other generator has a rise time of 70 ns and a FWHM of 100 ns. Diffuse discharges are obtained in a highly non-uniform gap in open air. Two kinds of electrode configurations are used. One type uses a commercial saw blade as high-voltage electrode, and the other type uses a series of knife blade as the HV electrode. Electrical characteristics of the diffuse discharges in open air are studied according to the voltage, current waveforms, and discharge images. Results show that diffuse discharge can be obtained with an axial distance of 30 cm and a gap spacing of 2 cm for both nanosecond pulse and microsecond pulse when the pulse repetition rate is 1 kHz. Nanosecond pulse is better for sustaining a uniform diffuse discharge than microsecond pulse excitation. In addition, the nanosecond pulse generator can provide more energy to the excitation of diffuse discharges than the microsecond pulse generator in our experiment.
Starting Page	352
Ending Page	355
File Size	392334
Page Count	4
File Format	PDF
ISBN	9781467373234
e-ISBN	9781479940479
DOI	10.1109/IPMHVC.2014.7287281
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-06-01
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Blades Fault location non-uniform gap Discharges (electric) Generators electrical characteristics microsecond pulse diffuse discharge Electrodes atmospheric pressure air nanosecond pulse gas discharge Plasmas
Content Type	Text
Resource Type	Article

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