Title :
Pulsed power supply for streamer corona electrofilter with 100 kV pseudospark switch
Author :
Bochkov, V.D. ; Gnedin, I.N. ; Djagiley, V.M. ; Ushich, V.G. ; Zikov, A.M. ; Beljev, V.V. ; Korolev, Yu.D. ; Samojlov, I.S. ; Anitov, N.M. ; Vereschagin, N.M. ; Kropp, L.I. ; Sergkev, A.I.
Author_Institution :
Sci. Production Corp. Plasma, Ryazan, Russia
Abstract :
A pulsed-plasma-based reactor has been created for the Moscow region Kashira thermal power plant. The reactor is intended to increase the precipitation of fly ash, SO2 and NOx from flue gases. The principal parameters of the electrostatic precipitator and pulse power supply for streamer corona discharge are as follows: gas flow rate 300000 Nm3/h; gas velocity 2 m/s; average power 300 kW; and pulse repetition rate up to 2 kHz. The power supply has a module design with a single module power of about 25-50 kW, pulse voltage up to 120 kV, pulse energy of 30 J and pulse length of 500 ns. A pseudospark switch with a hold-off voltage up to 100 kV is used in the module. It is supposed that the switch should offer a possibility to transfer a total charge of about 107 C
Keywords :
air pollution control; corona; electrostatic precipitators; plasma switches; power supplies to apparatus; pulsed power switches; spark gaps; sparks; thermal power stations; 100 kV; 120 kV; 2 kHz; 2 m/s; 25 to 50 kW; 30 J; 300 kW; 500 ns; NO; SO; average power; electrostatic precipitator; fly ash precipitation; gas flow rate; gas velocity; hold-off voltage; pseudospark switch; pulse repetition rate; pulsed power supply; pulsed-plasma-based reactor; streamer corona discharge; streamer corona electrofilter; thermal power plant; Corona; Electrostatic precipitators; Flue gases; Fluid flow; Fly ash; Inductors; Power generation; Pulsed power supplies; Switches; Voltage;
Conference_Titel :
Discharges and Electrical Insulation in Vacuum, 1996. Proceedings. ISDEIV., XVIIth International Symposium on
Conference_Location :
Berkeley, CA
Print_ISBN :
0-7803-2906-6
DOI :
10.1109/DEIV.1996.545512
