Title :
High-Speed Observation of AC Arc Plasma Superimposed Pulse Current at Current Zero Point
Author_Institution :
Central Res. Inst. of Electr. Power Ind., Yokosa, Japan
Abstract :
The use of ac arc plasma involves a problem of instability of the arc plasma at current zero point. A method for stabilizing the transferred-type ac arc plasma has been developed by superimposing a pulse current on an ac current only at each current zero point. In this paper, a high-speed observation of the ac arc plasma is carried out in order to investigate on the stabilization of the ac arc plasma by superimposing a pulse current.
Keywords :
arcs (electric); high-speed techniques; plasma diagnostics; plasma instability; ac arc plasma stabilization; ac arc plasma superimposed pulse current; ac current; arc plasma instability; current zero point; high-speed observation; transferred-type ac arc plasma; Argon; Brightness; Carbon; Electrodes; Heating; Plasma temperature; AC; arc discharges; current zero; high-speed observation; plasma stability; pulse current;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2011.2129580
