Fundamental studies on switching arcs -Experimental and numerical approaches

Yasunori Tanaka, Tomoyuki Nakano, Sun Hao, Kentaro Tomita, Yuki Inada, Akiko Kumada, Kunihiko Hidaka, Takayasu Fujino, Katsumi Suzuki, Takeshi Shinkai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Both experimental and numerical approaches have been done on switching arc plasmas for fundamental studies. In the experimental approaches, power-semiconductor switching has been used to control intentional current injections and voltage applications to switching arcs with a high accuracy in time. The systematic experiments provided the interruption probability property for different gas kinds and gas flow rates, as well as the dielectric recovery properties between the electrodes. Time evolutions in electron density were derived by Laser Thomson Scattering (LTS) and Shack-Hartmann (SH) method for different gases. On the other hand, for this nozzle space, numerical models were developed to simulate arc dynamic behaviors with and without local thermodynamic equilibrium (LTE) assumptions for different gases. It was found that the time evolution in electron density derived by the chemically non-equilibrium model is in good agreement with the experimental results by LTS.

Original languageEnglish
Title of host publicationICEPE-ST 2017 - 4th International Conference on Electric Power Equipment- Switching Technology
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-10
Number of pages10
ISBN (Electronic)9781538616512
DOIs
Publication statusPublished - Dec 12 2017
Event4th International Conference on Electric Power Equipment- Switching Technology, ICEPE-ST 2017 - Xi'an, China
Duration: Oct 22 2017Oct 25 2017

Publication series

NameICEPE-ST 2017 - 4th International Conference on Electric Power Equipment- Switching Technology
Volume2017-December

Other

Other4th International Conference on Electric Power Equipment- Switching Technology, ICEPE-ST 2017
CountryChina
CityXi'an
Period10/22/1710/25/17

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology

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