All-solid-state Marx generator with saturable pulse transformer substituting for gas switch

Abstract

The invention discloses an all-solid-state Marx generator with a saturable pulse transformer substituting for a gas switch. The all-solid-state Marx generator is used for solving the problems that existing Marx generators are high in charging voltage, non-synchronous in capacitor charging, short in gas switch life or high in magnetic switch saturable inductance, series are hard to increase and the like. The all-solid-state Marx generator is composed of the saturable pulse transformer SPT, Q-grade Marx capacitor and grounding inductor units and a load, the SPT is in an axial symmetric structure, Q-group secondary windings of the SPT serve as a magnetic switch, Q-grade Marx capacitor and grounding inductor units are evenly distributed on the outer circumference of the SPT and are connected with Q-group secondary windings. Each grade of the Q-grade Marx capacitor and grounding inductor units is composed of a Marx capacitor and a grounding inductor. The all-solid-state Marx generator has the advantages of being low in input charging voltage, short in series connection, synchronization and built-up time of the switch, high and repetitive in operation frequency, solid and long in service life, a magnetic core can be reset automatically, and all grades of capacitors are charged uniformly.

Description

technical field [0001] The invention relates to a Marx generator in the technical field of high-power pulse modulation, in particular to an all-solid-state Marx generator that uses a low-inductance wire-wound saturable pulse transformer instead of a gas switch. Background technique [0002] Pulse power modulation technology is an electrophysical technology that quickly compresses, converts or directly releases "slow" stored electric or magnetic field energy with high density to the load, and the voltage conversion and switching technology is the key. In recent years, pulse power modulation technology has been well applied in many fields such as high-power microwave, high-power pulse laser, shock wave generator, dielectric barrier discharge, material surface treatment, industrial waste gas and wastewater treatment, food sterilization and biomedicine, and These applications place demands on pulse power modulators for high power, high repetition rate, solid state, and long life...

AI Technical Summary

Problems solved by technology

[0013] The technical problem to be solved by the present invention is to overcome the problem that in the existing all-magnetic switch-type all-solid-state Marx generator, a large number of magnetic core-type coupling isolation inductors are used, which leads to the increase of the system magnetic core consumption, the asynchronous charging of capacitors at all levels, and the lack of a reset system for the magnetic core. The Marx generator can only output bipolar pulses, has high requirements on the output voltage range of the primary charging power supply (>7.5kV), the saturation inductance of the magnetic switch is large, and the number of series series of the Marx generator is difficult to increase. Saturable pulse transformer with multiple windings grouped in parallel and with low voltage multiple and low saturated inductance can replace all the gas switches or magnetic switches in the existing Marx generator, and provide a low input charging voltage, fully automatic synchronous control, magnetic core 100kV all-solid-state Marx generator with automatic reset, uniform charging of capacitors at all levels, ns-level settling time, simple structure, compact size, and low cost

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