Laser-triggered megavolt-level low-inductance gas switch

A gas switch and low inductance technology, which is applied in the field of megavolt low inductance gas switches, can solve the problems of large discharge inductance, easy insulation failure, and difficulty in implementing gas switch projects triggered by electric pulses, so as to improve the service life of the switch and reduce the Effect of switch inductance and avoidance trigger system insulation protection

Inactive Publication Date: 2018-08-24
NORTHWEST INST OF NUCLEAR TECH
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Problems solved by technology

[0004] In order to solve the technical problems that the single-channel discharge inductance of the laser trigger switch is large and the engineering implementation of the electric pulse trigger gas switch is difficult, and the insulation failure is easy, the invention provides a laser trigger megavolt low inductance gas switch

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  • Laser-triggered megavolt-level low-inductance gas switch

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Embodiment Construction

[0023] The present invention will be described in detail below in conjunction with the accompanying drawings and specific examples.

[0024] see figure 1 , the megavolt low-inductance gas switch triggered by the laser of the present invention includes a high-voltage electrode 3, a trigger electrode 7, a ground electrode 6, a hemispherical ground electrode 10, an outer cylinder 5, a first insulating mount 4, and a second insulating mount 11 and ground inductance 8.

[0025] The high-voltage electrode 3, the trigger electrode 7, the ground electrode 6, and the hemispherical ground electrode 10 are sequentially arranged in the middle of the outer cylinder 5 along the axial direction of the outer cylinder 5, and there is a set distance between any two of them; the high-voltage electrode 3 and the ground electrode The outer wall of 6 is provided with a first concave-convex portion 14 for positioning and installation; the trigger electrode 7 includes a disc-shaped portion and a rod...

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Abstract

To solve the technical problems that a laser triggering switch single-channel discharge inductance is relatively large and electrical pulse-triggered gas switch project implementation difficulty is high, and an insulation failure is easy to occur, the invention provides a laser-triggered megavolt-level low-inductance gas switch. A pretriggering gap breakdown process of the switch is triggered by laser, photoelectric isolation is realized, and the technical problems of electrical pulse triggering introduction and triggering system insulation protection are avoided; and a main gap is of a fielddistortion three-electrode structure, after discal part potential reversal of electrodes is triggered, discharge is induced due to strong electric field distortion, and thus a plurality of discharge channels are formed, thereby reducing switch inductance, and prolonging the life of the switch.

Description

technical field [0001] The invention relates to a megavolt (MV) level low inductance gas switch triggered by laser. Background technique [0002] Large-scale pulse power devices usually require multiple pulse sources to operate synchronously, drive loads in parallel to obtain current superposition, or use electromagnetic induction to obtain voltage superposition. Since the load-on pulse width is only tens of nanoseconds (ns), in order to obtain efficient superposition, strict requirements are placed on the time synchronization accuracy of the pulse source. One of the current development trends is that the generation of single-channel 1012-watt pulses is simplified from multi-stage compression to one-stage, in which the megavolt (MV)-level trigger gas switch not only determines the output time of each pulse, but also affects the pulse waveform and amplitude. The core component of the device. [0003] Most of the existing megavolt (MV) level gas switches adopt a laser-trigge...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01T2/00
CPCH01T2/00
Inventor 尹佳辉孙凤举邱爱慈姜晓峰王志国黄涛丛培天
Owner NORTHWEST INST OF NUCLEAR TECH
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