Time Jitter Study of a Corona-Stabilized Closing Switch

Larsson, Anders; Yap, Danny; Lim, Yong Wah

doi:10.1109/tps.2012.2208103

Cited by 13 publications

(6 citation statements)

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“…To achieve desirable operational performance in specific pulsed power applications, complex plasma switching topologies with corona discharge electrodes can be used. Although a number of publications have reported on the development of corona-stabilised PCS's that operate in an air environment, [17][18][19], the breakdown parameters of such yuan.yao.101@strath.ac.uk; igor.timoshkin@strath.ac.uk; scott.macgregor@ strath.ac.uk; mark.p.wilson@strath.ac.uk; m.given@strath.ac.uk; tao.wang@ strath.ac.uk). Switch Filled with Air, N 2 , CO 2 and Ar/O…”

Section: Introductionmentioning

confidence: 99%

Breakdown Characteristics of Plasma Closing Switch Filled With Air, N₂, CO₂, and Ar/O₂

Yao

Timoshkin

MacGregor

et al. 2018

IEEE Trans. Plasma Sci.

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One of the critical components of high energy density pulsed power systems used to generate short high-voltage and high-power impulses is gas-filled plasma closing switch. In recent years significant research efforts have been aimed at finding environmentally friendly gases which can be used in the plasma closing switches, and several gases including dry air, nitrogen, carbon dioxide, argon and their mixtures have been considered as potentially suitable working fluids in such switches. However, the lack of knowledge of the breakdown characteristics of complex switching topologies filled with these gases limits their practical applications. Therefore, further investigation of the breakdown performance of plasma closing switches is required, in order to establish their applicability for practical use in high voltage pulsed power systems. The present paper reports on the investigation of the breakdown characteristics of a triggered plasma closing switch topology with corona discharge electrodes. The self-breakdown voltage of the switch, variation in the self-breakdown voltage, time to breakdown, and jitter have been obtained for the switch filled with "Zero Grade" air, N2, CO2 and an Ar/O2 mixture up to a pressure of 10 bar (abs). It was shown that the switch can provide a stable breakdown performance with jitter as low as 1 ns.

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Section: Introductionmentioning

confidence: 99%

Breakdown Characteristics of Plasma Closing Switch Filled With Air, N₂, CO₂, and Ar/O₂

Yao

Timoshkin

MacGregor

et al. 2018

IEEE Trans. Plasma Sci.

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“…The gap between the earth electrode and the brass body was fixed at 3 mm (Dg). This particular geometry was a continuation of previous research using this type of corona-stabilised switch [4], [19], [20], with the inter-electrode gaps optimised for the voltages and gas types used herein.…”

Section: A Practical Css Systemmentioning

confidence: 99%

Characterization and Statistical Analysis of Breakdown Data for a Corona-Stabilized Switch in Environmentally Friendly Gas Mixtures

Macpherson

Wilson

MacGregor

et al. 2018

IEEE Trans. Plasma Sci.

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This version is available at https://strathprints.strath.ac.uk/64280/ Strathprints is designed to allow users to access the research output of the University of Strathclyde. Unless otherwise explicitly stated on the manuscript, Copyright © and Moral Rights for the papers on this site are retained by the individual authors and/or other copyright owners. Please check the manuscript for details of any other licences that may have been applied. You may not engage in further distribution of the material for any profitmaking activities or any commercial gain. You may freely distribute both the url (https://strathprints.strath.ac.uk/) and the content of this paper for research or private study, educational, or not-for-profit purposes without prior permission or charge.Any correspondence concerning this service should be sent to the Strathprints administrator: strathprints@strath.ac.ukThe Strathprints institutional repository (https://strathprints.strath.ac.uk) is a digital archive of University of Strathclyde research outputs. It has been developed to disseminate open access research outputs, expose data about those outputs, and enable the management and persistent access to Strathclyde's intellectual output. > REPLACE THIS LINE WITH YOUR PAPER IDENTIFICATION NUMBER (DOUBLE-CLICK HERE TO EDIT) < 1Abstract -Characterisation of a corona-stabilised switch in the single-shot regime, including triggering range, delay times and jitter is reported, over the pressure range 0-3 bar gauge, as a continuation of work from similar characterisation with this switch filled with SF6 with different gap spacings. When filled with mixtures of HFO-1234ze and N2, the breakdown voltage can be increased by up to ~306% and ~191% under negative and positive polarity, respectively, of that using 100% N2. These results were achieved with gas mixtures consisting of 80% N2 and 20% HFO-1234ze, by pressure. The maximum negative polarity triggering range was 13.6 kV, comparable to that achieved previously using SF6. The measured delay time and calculated jitter was generally found to increase with increasing pressure, and with increasing percentage (from 5% to 20%) of HFO-1234ze in the gas mixtures.Von Laue statistical analysis of time-to-breakdown data showed that both the formative time and statistical time increased with increasing pressure, and with increasing percentage of HFO-1234ze in the gas mixtures. The formative time under negative polarity was significantly longer than that for positive polarity.The results indicate that HFO-1234ze may be considered as a suitable candidate to replace SF6 for switching applications, although there are some operational observations that require further investigation.

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“…Another disadvantage is the complexity of creating a pulse transformer and a frequency gas switch for a total output voltage of 100 kV and a total discharge current of 10-100 kA. In the gas switches of a high-voltage storage, the problems of stability of frequency operation and the lifetime are acute [21][22][23]. Research on the use of solid-state switches in high-power high-voltage generators is progressing well [24,25].…”

Section: Jinst 16 P12006mentioning

confidence: 99%

An air insulated linear pulse transformer for electrodischarge technology

2021

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A linear pulse transformer with air insulation at atmospheric pressure was created and tested under both constant resistance and non linear loads. The maximum power of the transformer output pulse reached ∼500 MW at a matched load with a charge voltage 50 kV. The transformer transferred ∼60% of the stored energy to the load over a characteristic time of about 1 μs. The scalability the generator was studied by connecting two identical transformers in series which gave a power output of ∼850 MW with doubled output voltage and reduced current. The frequency mode of operation was studied using one and two transformers with a charge voltage of 50 kV and a load that was, close to matched. In both cases, the power maximum and jitter showed no significant changes at any of the frequencies tested (up to 5 Hz). These results mean that the use of this generator can be recommended for a wide field of applications due to its scalability and low internal impedance.

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Time Jitter Study of a Corona-Stabilized Closing Switch

Cited by 13 publications

References 10 publications

Breakdown Characteristics of Plasma Closing Switch Filled With Air, N₂, CO₂, and Ar/O₂

Breakdown Characteristics of Plasma Closing Switch Filled With Air, N₂, CO₂, and Ar/O₂

Characterization and Statistical Analysis of Breakdown Data for a Corona-Stabilized Switch in Environmentally Friendly Gas Mixtures

An air insulated linear pulse transformer for electrodischarge technology

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Time Jitter Study of a Corona-Stabilized Closing Switch

Cited by 13 publications

References 10 publications

Breakdown Characteristics of Plasma Closing Switch Filled With Air, N2, CO2, and Ar/O2

Breakdown Characteristics of Plasma Closing Switch Filled With Air, N2, CO2, and Ar/O2

Characterization and Statistical Analysis of Breakdown Data for a Corona-Stabilized Switch in Environmentally Friendly Gas Mixtures

An air insulated linear pulse transformer for electrodischarge technology

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Product

Resources

About

Breakdown Characteristics of Plasma Closing Switch Filled With Air, N₂, CO₂, and Ar/O₂

Breakdown Characteristics of Plasma Closing Switch Filled With Air, N₂, CO₂, and Ar/O₂