A system for generating atmospheric pressure diffuse discharge non-equilibrium plasma

Abstract

The invention discloses a system for generating unbalanced plasma of atmospheric pressure diffuse discharge, comprising: a DC power supply, a resonant charging circuit, a Tesla transformer resonant boost circuit, a pulse steepening circuit, a current limiting resistor, and a linear electrode. The resonant charging circuit includes Charging thyristor, charging inductance, filter capacitor, primary side capacitor, Tesla transformer resonant step-up circuit includes discharge thyristor, Tesla transformer, secondary side capacitor, pulse steepening circuit includes three-electrode spark switch and trigger pole resistor, the positive pole of the DC power supply is connected to The anode of the charging thyristor, the negative pole of the DC power supply are grounded, the cathode of the charging thyristor is connected to one end of the charging inductor, the other end of the charging inductor is connected to the anode of the discharging thyristor, and the filter capacitor is directly connected in parallel with the DC power supply. The invention can solve the technical problems of difficulty in obtaining large-volume plasma, limited ionization efficiency, low energy utilization rate and limited application in the existing discharge form of atmospheric pressure non-equilibrium plasma.

Description

technical field [0001] The invention belongs to the field of gas discharge and application, and more specifically relates to a system for generating non-equilibrium plasma of atmospheric pressure diffuse discharge. Background technique [0002] In recent years, atmospheric pressure non-equilibrium plasmas have attracted special attention due to their unique advantages and huge application prospects. On the one hand, atmospheric pressure non-equilibrium plasma eliminates the expensive and extremely cumbersome vacuum system, which greatly reduces its application cost and has been widely used, such as surface modification of materials, sterilization and disinfection of medical instruments and equipment, etc. On the other hand, because it discharges in the surrounding atmosphere, it makes some applications that could not be realized before become reality, and one of the very important applications is the application of plasma medicine. [0003] At present, there are mainly coro...

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Problems solved by technology

[0004] In view of the above defects or improvement needs of the prior art, the present invention provides a system for generating non-equilibrium plasma of atmospheric pressure diffuse discharge, the purpose of which is to solve the difficulty in obtaining large-volume plasma in the presence of non-equilibrium plasma of atmospheric pressure in the existing discharge form , limited ionization efficiency, low energy utilization, low concentration of ions and highly active particles, some technical problems that limit the application

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