Title :
Repetitive short-pulsed generator using MPC and blumlein line
Author :
Sakugawa, T. ; Wang, D. ; Shinozaki, K. ; Namihira, T. ; Katsuki, S. ; Akiyama, H.
Author_Institution :
Graduate Sch. of Sci. & Technol., Kumamoto Univ., Japan
Abstract :
Recently, repetitive pulsed power generators using magnetic pulse compression (MPC) and semiconductor switches have been developed. A repetitive short-pulsed generator for an ozonizer was studied and developed. In this work, the short-pulsed generator consists of a controller, a command charger, a high-speed thyristor, a MPC and a Blumlein line. The controller and the command charger are able to control the charging voltage to the MPC and the pulse repetition rate. The high-speed thyristor, which was improved in switching speed for the pulsed power applications, generated the primary pulse. The MPC has single stage pulse compression circuit using a pulse transformer and a saturable transformer. The saturable transformer has two functions, a step-up transformer and a magnetic switch. The Blumlein line is the final stage of the short-pulsed generator. The Blumlein line is three-coaxial geometry, which has an external electrode diameter of 110 mm, a middle electrode diameter of 20 mm, an internal electrode diameter of 4 mm, and a length of 500 mm. The short-pulsed generator which has an output voltage of about 65 kV, pulse repetition rate of 150 pulses per second (pps) and a pulse duration of less than 10 ns was used to generate ozone. The results of ozone production using the short-pulsed generator and a simple coaxial electrodes are reported. The attained concentration of ozone was 18 g/m/sup 3/.
Keywords :
controllers; electrodes; magnetic switching; ozone; power semiconductor switches; pulse compression; pulse generators; pulse transformers; pulsed power technology; thyristors; voltage control; 110 mm; 20 mm; 4 mm; 500 mm; blumlein line; coaxial electrode; command charger; controller; magnetic pulse compression; magnetic switch; ozone production; ozonizer; pulse compression circuit; pulse repetition rate; pulse transformer; pulsed power generators; saturable transformer; semiconductor switches; short-pulsed generator; three-coaxial geometry; thyristor; voltage control; Electrodes; Magnetic materials; Magnetic switching; Photonic crystals; Power generation; Pulse compression methods; Pulse generation; Pulse transformers; Thyristors; Voltage control;
Conference_Titel :
Pulsed Power Conference, 2003. Digest of Technical Papers. PPC-2003. 14th IEEE International
Conference_Location :
Dallas, TX, USA
Print_ISBN :
0-7803-7915-2
DOI :
10.1109/PPC.2003.1277795