Grounding design method of multi-cabin combined type spacecraft

Abstract

The invention provides a grounding design method of a multi-cabin combined type spacecraft. According to the grounding design method of the multi-cabin combined type spacecraft, switches are connected with resistors in parallel, the switches of different cabins are controlled separately at different time intervals, single point grounding of the multi-cabin combined type spacecraft in a combined working condition and in a independent working condition is achieved, and the zero level standard of the aircraft is guaranteed. By means of the grounding design method of the multi-cabin combined type spacecraft, the internal grounding mode of each cabin section of the aircraft is not changed, grounding design of the whole aircraft can be achieved through the simple switches and resistors, and the grounding design is easy to operate and implement. According to the grounding design method of the multi-cabin combined type spacecraft, after one cabin or a plurality of cabins are separated from other cabins, a grounding switch of the cabin or the grounding switch of one cabin among the plurality of cabins is closed, grounding switches of the other cabins keep in an off-state, and single point grounding of a primary source loop line is achieved through the cabin with the closed grounding switch. Among the remaining cabins after separation, only the grounding switch of one cabin is in an on-state, and single point grounding of a formed combined body is achieved through the grounding switch.

Description

technical field [0001] The invention belongs to the technical field of aerospace and aviation, and relates to a grounding design method for a spacecraft, in particular to a grounding design method for a multi-chamber combined spacecraft. Background technique [0002] The purpose of the spacecraft grounding design is to realize the equipotential design of the spacecraft structure, prevent the formation of current loops through the spacecraft structure, establish the zero potential reference of the spacecraft, and improve the electromagnetic compatibility level of the spacecraft. [0003] For independent flying spacecraft, many standards and regulations at home and abroad have requirements for grounding. The commonly used grounding method is single-point grounding, including single-point direct grounding and single-point high-impedance grounding. Single-point direct grounding is to collect the primary power return line of the spacecraft to the power control equipment or power ...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problems of complex implementation of isolation measures between power supplies between cabins, high weight cost, large power loss and heat consumption when the cabins of a multi-cabin combined spacecraft are grounded in an isolated manner, and provide A grounding design method for multi-chamber combined spacecraft is proposed, which is simple and easy to implement

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