Solid insulating material surface arc simulation platform and measurement method in extreme environment

Abstract

The invention relates to a solid insulating material surface arc simulation platform and measurement method in an extreme environment. The solid insulating material surface arc simulation platform comprises a vacuum box, a liquid nitrogen sheet, a heating device, a radiation device, a high-voltage electrode, and a ground electrode. The vacuum box is a box body of a solid insulating material agingexperiment device in the extreme environment, and the whole box body is in an ultra-vacuum, high-temperature-difference, ultra-low-temperature and strong-radiation environment. A vacuum pump is used for pumping out air in the box body to achieve an ultra-vacuum environment; the liquid nitrogen sheet is used for achieving an ultra-low temperature environment; an infrared heating lamp conducts directional irradiation to enable the two sides of a material to achieve ultra-temperature difference; and a high-energy ray emitter achieves a strong radiation environment. A high-voltage power supply isintroduced to realize high voltage difference between the high-voltage electrode and the ground electrode, so that a sample can discharge along a dielectric surface. According to the solid insulatingmaterial surface arc simulation platform and measurement method in the extreme environment, an extreme environment simulation test environment is set, an experiment of a solid insulating material discharging along the dielectric surface under high voltage is realized, and related phenomena are observed and measured, so that the requirement of the experiment of the solid insulating material discharging along the dielectric surface under the extreme environment can be met.

Description

technical field [0001] The invention relates to a solid insulating material creeping arc simulation platform and a measurement method in an extreme environment, and belongs to the technical field of solid insulating material aging. Background technique [0002] A space solar power station refers to a system that converts solar energy into electrical energy in space and transmits it to the ground through wireless energy transmission, or directly reflects sunlight to the ground to generate power on the ground. At present, the United States, Russia, Japan and other countries are conducting research. The Japan Aerospace Exploration Agency (JAXA) proposed that Japan plan to build space solar power plants in the next 25 years. A nuclear power plant produces electricity per year. The "Qian Xuesen Space Technology Laboratory" team of the Fifth Academy of Aerospace Sciences of my country has carried out specific research work on solar power plants, and is currently in the research ...

AI Technical Summary

Problems solved by technology

Because there is no air convection heat transfer in space, the sunny side of the cable absorbs the sun's radiant heat, and the temperature can reach more than 100 degrees Celsius, while the backside of the cable is in space as low as minus 100 degrees Celsius, which forms an extremely high temperature. At the same time, there are a large number of high-energy radioactive ions in space. These particles continuously bombard the surface of insulating materials in high-speed motion. These conditions will affect the accumulation characteristics of polyimide surface charges, which may lead to surface discharge of insulating materials. Serious Threat to reliable operation of space solar power plants

[0003] In order to improve the influence of insulating materials on transmission lines in extreme environments, scholars have carried out related research, but the research fields mainly focus on the research of modified materials and electron radiation, and the discharge evolution process of insulating materials mainly focuses on electron radiation. There are also studies involving vacuum environments, which are not included in their studies for high temperature gradients

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