Electric field calculation method for multiple coupled electric fields in spatial high voltage part

Abstract

The invention discloses an electric field calculation method for multiple coupled electric fields in a spatial high voltage part. The electric field calculation method for multiple coupled electric fields in the spatial high voltage part comprises steps of adopting a finite element difference method to determine conditions of charge deposition distribution and internal charge conduction of spatial high energy electrons in the high voltage part, setting a boundary condition according to a working voltage condition of a high voltage part, substituting a charge deposition amount and a conduction amount into a current conduction function to calculation spatial charge distribution, substituting spatial electrons into a poisson's equation, calculating to obtain a coupled electric field between an electric field produced by the spatial high energy electrons depositing in the high voltage part and an electric field produced by working voltage to obtain a distorted position of the two electric fields. The electric field calculation method for multiple coupled electric fields in the spatial high voltage part considers an affect of the working voltage on a charge-discharge effect, can improve accuracy of the electric field calculation, and provides basis to accurately evaluating the risk introduced by the charge-discharge effect of the spatial high voltage part and effectively guiding a design for protecting the high voltage part charge-discharge effect.

Description

technical field [0001] The invention belongs to the field of calculation, analysis and calculation of the electric field inside the space high-voltage component, and in particular relates to an electric field calculation method for multi-electric field coupling inside the space high-voltage component. Background technique [0002] With the development of my country's satellite technology, due to functional requirements, the new generation of satellites will adopt high-voltage and high-power energy systems. High-voltage power supply and distribution components are the single point of failure that causes the entire satellite to fail. Their reliability is crucial to the safe operation of satellites in orbit. important. [0003] When a large space radiation environment disturbance event occurs, such as solar flares, solar coronal mass ejections, geomagnetic storms or geomagnetic substorms, a large number of space high-energy electrons will directly penetrate the surface structure...

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Problems solved by technology

[0005] At present, the research on charging effect in space at home and abroad mainly adopts Monte Carlo method calculation analysis and high-energy electron accelerator simulation test to carry out, such as literature 1 ("Computer simulation research on deep charging of satellite medium", Journal of Geophysics, Vol. 47, No. 7) As shown in Document 2 ("Experimental Research on Deep Charge and Discharge Effects of Space Materials", Spacecraft Environmental Engineering Volume 26, Issue 3), the influence of the operating voltage of satellite components on the charge and discharge effect is not considered, and the charge and discharge of space high voltage components cannot be accurately evaluated. The risk induced by the effect, and it cannot effectively guide the protection design of the charge and discharge effect of high-voltage components

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