Gas spark switch discharge experiment circuit and device

A technology of gas spark switch and experimental circuit, which is applied in the direction of testing dielectric strength, etc., can solve the problems of inability to provide discharge current waveform and low aging efficiency of the tested switch, so as to improve the efficiency of circuit construction, facilitate pulse shaping, and high aging efficiency Effect

Active Publication Date: 2022-04-29
INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to overcome the deficiencies of the prior art, the present invention provides a gas spark switch discharge experimental circuit and device to solve the problems existing in the prior art that it cannot provide a high-quality discharge current waveform and the aging efficiency of the tested switch is low.

Method used

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  • Gas spark switch discharge experiment circuit and device
  • Gas spark switch discharge experiment circuit and device
  • Gas spark switch discharge experiment circuit and device

Examples

Experimental program
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Embodiment 1

[0039] like Figure 1 to Figure 9 As shown, a gas spark switch discharge experimental circuit, including the test switch S1, the first pulse forming network, the inductor L 5 , resistance R 1 , one end of S1, the first pulse forming network, L 5 , R 1 , and the ground are electrically connected in turn, and the other end of S1 is electrically connected to the ground in turn, and the first pulse forming network includes N LC series branches connected in parallel with each other; wherein, N≥2 and N is an integer.

[0040] When in use, the gas spark switch discharge experimental circuit is electrically connected to the charging power source 1 and the measuring system 3 respectively. The circuit of the present invention provides high-quality waveforms for the discharge experiment of the tested switch S1, the waveform reverse current is very small, has a certain flat top, and is suitable for studying the electrode ablation problem of the switch, because the ablation of the elect...

Embodiment 2

[0056] like Figure 1 to Figure 9 As shown, as a further optimization of Embodiment 1, this embodiment includes all the technical features of Embodiment 1. In addition, this embodiment also includes the following technical features:

[0057] A gas spark switch discharge experimental device includes the gas spark switch discharge experimental circuit, and also includes a charging power source 1 and a measurement system 3 respectively electrically connected to the gas spark switch discharge experimental circuit.

[0058] The circuit of the present invention provides high-quality waveforms for the discharge experiment of the tested switch S1, the waveform reverse current is very small, has a certain flat top, and is suitable for studying the electrode ablation problem of the switch, because the ablation of the electrode is related to the direction of the current; The waveform provided by the inventive circuit is consistent with the actual working state of the switch, which can im...

Embodiment 3

[0064] like Figure 1 to Figure 9 As shown, this embodiment includes all the technical features of Embodiment 1 and Embodiment 2. On the basis of Embodiment 1 and Embodiment 2, this embodiment provides a more detailed implementation mode.

[0065] There is room for improvement in the current switch discharge experimental circuit. The waveform of the discharge current should preferably be consistent with the actual working state, that is, a square wave with a certain flat top, no oscillation, and no reverse current; the peak value of the current should reach more than 10 kA; it can be modulated according to actual needs the pulse width.

[0066] In order to achieve this purpose, the present invention invented a discharge experiment circuit, and developed the corresponding experiment device.

[0067] The experimental circuit designed as figure 2 shown.

[0068] The whole experimental system can be divided into three parts: power supply, discharge circuit and measurement sys...

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Abstract

The invention relates to the technical field of switch discharge experiments, and discloses a gas spark switch discharge experiment circuit and device.The gas spark switch discharge experiment circuit comprises a tested switch S1, a first pulse forming network, an inductor L5, a resistor R1 and a second pulse forming network, one end of the S1, the first pulse forming network, the inductor L5, the resistor R1 and the ground are electrically connected in sequence, and the other end of the S1 is electrically connected with the inductor L5; the other end of the S1, the second pulse forming network and the ground are electrically connected in sequence, the first pulse forming network comprises N LC series branches which are mutually connected in parallel, and the second pulse forming network comprises M LC series branches which are mutually connected in parallel; wherein N is an integer greater than or equal to 2, and M is an integer greater than or equal to 2. According to the invention, the problems of incapability of providing high-quality discharge current waveform, low aging efficiency of the tested switch and the like in the prior art are solved.

Description

technical field [0001] The invention relates to the technical field of switch discharge experiments, in particular to a gas spark switch discharge experiment circuit and device. Background technique [0002] In the pulse power device, the switch is an important component. For switches with a flow capacity greater than 10kA and a working voltage greater than 10kV, solid-state switches are difficult to meet the work requirements, and gas spark switches are still the most widely used switches. In the past ten years, pulsed power devices of the PFN Marx type have been developed. It uses PFN as an energy storage and pulse forming module, relies on Marx generator technology to output high voltage, and can directly output a square wave to the load. In this PFN Marx type pulse power device, there are many gas switches in one device. [0003] In the research of switch experiment, the discharge experiment is a basic experiment. The specific method is to apply high voltage to one e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12
CPCG01R31/1227
Inventor 张北镇甘延青向飞宋法伦李春霞张晋琪
Owner INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS
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