Title :
Development of plasma channel in subnanosecond closing switches
Author :
Hashemi, Ehsan ; Niayesh, Kaveh ; Jadidian, Jouya ; Agheb, Edris
Author_Institution :
Sch. of Electr. & Comput. Eng., Univ. of Tehran, Tehran
Abstract :
This paper investigated in detail the solving magnetohydrodynamics equations, development of the discharge channel in subnanosecond regime after breakdown initiation and its electrical property such as time-dependent conductance and inductance of the gap have been derived for different electrode geometries and gas pressures. The voltage rise time at the load in a pulse forming system is simulated using the electrical characteristics of the switch and compared with the measured waveshapes to validate the derived electrical model. The simulation results are in good accordance with the experimental measurements.
Keywords :
discharges (electric); electric breakdown; plasma magnetohydrodynamics; plasma simulation; plasma switches; plasma transport processes; plasma waves; breakdown initiation; discharge channel; electrode geometry; gap inductance; gas pressures; magnetohydrodynamics equations; plasma channel; pulse forming system; subnanosecond closing switches; time-dependent conductance; voltage rise time; waveshapes; Differential equations; Electric breakdown; Electrodes; Geometry; Inductance; Magnetic properties; Magnetohydrodynamics; Plasma properties; Pulse measurements; Switches;
Conference_Titel :
Plasma Science, 2008. ICOPS 2008. IEEE 35th International Conference on
Conference_Location :
Karlsruhe
Print_ISBN :
978-1-4244-1929-6
Electronic_ISBN :
0730-9244
DOI :
10.1109/PLASMA.2008.4590936
