High-voltage pulse power supply for plasma sewage treatment system

Abstract

The invention discloses a high-voltage pulse power supply for a plasma sewage treatment system. The high-voltage pulse power supply comprises a power frequency rectifying and filtering circuit, a first-stage boosted circuit, a second-stage boosted circuit and a voltage coupling circuit. The power frequency rectifying and filtering circuit is connected with a municipal power grid to convert power frequency alternating current into direct current. An input end and an output end of the first-stage boosted circuit are respectively connected with an output end of the power frequency rectifying and filtering circuit and an input end of the second-stage boosted circuit to achieve the functions of boosting and rectifying and filtering. The second-stage boosted circuit is boosted again and outputs stable high-voltage direct current and stable high-voltage alternating current. The voltage coupling circuit couples and superimposes the alternating current and the direct current and loads the alternating current and the direct current to equivalent loads of a plasma reactor. According to the high-voltage pulse power supply for the plasma sewage treatment system, the traditional method that two independent alternating-current power supply and direct-current power supply are used for carrying out coupling discharging is changed, the number of needed hardware components is decreased to a great extent, space and cost are saved, loss is reduced, and reliability and stability of a power supply system are improved.

Description

Technical field [0001] The invention involves a high -voltage power supply, which specifically involves a high -voltage pulse power supply for plasma sewage treatment systems. Background technique [0002] With the rapid development of modern industries, water resources are severely polluted and damaged, and the harm brought by it has aroused widespread attention from the world, and various industrial sewage treatment methods have emerged.Among them, the low -temperature plasma high -grade oxidation sewage treatment technology of high -voltage pulses is used to use high -voltage pulses for electricity and discharge has the advantages of both traditional methods. It also has unique advantages such as extensive applicability, high organic removal rate, and no secondary pollution. It has become the field of sewage treatment.Great development of promising technology. [0003] Among the various ways of generating high -voltage pulses, the advantages of high -voltage stacking technolog...

AI Technical Summary

Problems solved by technology

The traditional high-voltage pulse power supply uses independent high-voltage DC power supply and AC power supply, couples and superimposes the output of the two, and then acts on the reactor to generate low-temperature plasma, which has the advantages of large volume, high cost, single step-up link, and high energy consumption. problem to be solved

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