An integrated multi-stage high-voltage pulse isolation inductor

Abstract

The invention discloses an integrated multi-stage high-voltage pulse isolation inductor. The integrated multi-stage high-voltage pulse isolation inductor comprises a plurality of insulating connecting sections connected in sequence, a copper ring electrode is clamped between every two adjacent insulating connecting sections, each copper ring electrode is coaxially sleeved with a tubular voltage-sharing electrode, and each voltage-sharing electrode and the corresponding copper ring electrode are connected into a whole through bolts. The integrated multi-stage high-voltage pulse isolation inductor further comprises a wire, and the wire is evenly and spirally wound on the outer surface of the insulating connecting sections connected into a whole and is connected with each copper ring electrode in a pressing mode through bolts. The integrated multi-stage high-voltage pulse isolation inductor is higher in voltage resistance strength, small in contact resistance and compact in structure.

Description

technical field [0001] The invention relates to the technical field of pulse power, in particular to an integrated high withstand voltage isolation inductor. Background technique [0002] As the main component of pulse generation and shaping in the field of pulse power technology, the development of pulse power source has been attracting much attention. The Marx generator is the most commonly used capacitive pulse power source device. Due to its working characteristics of parallel charging and series discharging, in order to protect the circuit and prevent the pulse from discharging from the capacitor to the ground, resistors are usually used as isolation elements between capacitors. However, when the resistance is isolated, the maximum charging efficiency is only 50% under constant voltage charging conditions, and there are defects such as long charging time and inability to work in high repetition rate mode. The inductive isolation method can significantly reduce the cha...

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Problems solved by technology

However, due to the replacement of the internal insulating medium of the coil with an equipotential magnetic core, the insulation strength between the surface coil and the magnetic core and between the two ends of the inductance coil is greatly reduced, resulting in a significant decrease in the withstand voltage strength of the isolated inductance system, which is easy In addition, even if the influence of the inductance is neglected, the withstand voltage strength of a single inductor is still insufficient for a high-voltage Marx system with tens of levels or more if a bulk insulating medium without a built-in magnetic core is used. Surface flashover or even breakdown damage often occurs at the high-voltage side of the system; and the number of isolation inductances of the multi-stage Marx generator is at least equivalent to the number of stages of the Marx generator. The introduction of each independent isolation inductance makes the inductance distribution and structural design necessary. The factors considered, and introduce more complex spatial distribution parameters; the introduction of more inductance coils will also increase the contact points of the system. The increase of contact points may not only introduce more contact resistance, but also increase the occurrence of tip discharge at contact points. The probability of adverse phenomena such as, thereby reducing the stability and reliability of the circuit to a large extent

[0004] The survey found that there are few domestic researches on isolation inductors in multi-stage Marx generators

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