Spacecraft rendezvous and docking grid-connected short-circuit detection circuit

Abstract

The spacecraft rendezvous and docking grid-connected short circuit detection circuit includes: isolation module, voltage divider module, protection module and voltage stabilization module; the protection module, voltage divider module, and isolation module are connected in sequence as the voltage input branch; the two ends of the voltage input branch are Connect the external test voltage and the positive cable of the grid-connected power supply path; the voltage divider module and the isolation module are connected in sequence as the positive loop isolation branch; the two ends of the positive loop isolation branch are respectively used to connect the positive pole of the grid-connected power supply path The cable is used as the output terminal for outputting hard-wire telemetry data to the satellite data management platform; the voltage stabilizing module and the isolation module are connected in sequence as the telemetry output branch; The connection point between the module and the isolation module is connected to the negative cable of the grid-connected power supply path. The invention solves the safety detection of different spacecraft docking paths, and ensures the safety of the 100V bus bar of the source spacecraft.

Description

technical field [0001] The invention relates to a spacecraft rendezvous and docking grid-connected short-circuit detection circuit, and is especially suitable for a source-end electronic stand-alone machine that needs to perform a safety inspection of a power supply path after the docking of different spacecraft is completed, and belongs to the technical field of power supply and distribution. Background technique [0002] In order to make better use of the space environment, it is necessary to build large spacecraft in space. However, due to the limited carrying capacity of existing vehicles, it is impossible to launch large spacecraft at one time. The current common method is to divide large spacecraft into small spacecraft and launch them into space in batches, and then carry out on-orbit assembly and docking in space. After the docking is completed, power supply starts between different small spacecraft. [0003] The power supply path between spacecraft bears the heavy ...

AI Technical Summary

Problems solved by technology

However, due to the limited carrying capacity of existing vehicles, it is impossible to launch large spacecraft at one time. The current common method is to divide large spacecraft into small spacecraft and launch them into space in batches, and then carry out on-orbit assembly and docking in space. After the docking is completed, different small spacecraft start to supply power

[0003] The power supply path between spacecraft is responsible for the transmission of electric energy. The normality of the power supply path is the basic condition for the spacecraft to complete the on-orbit mission. Once there is a short circuit problem in the power supply path, the equipment on the corresponding path will be damaged, causing heavy losses and leading to spaceflight failure. The launch task of the transmitter fails, and the short circuit fault is a fatal threat to the grid-connected power supply system

Images