Storage battery pack open-circuit failure prevention assembly for spacecraft and control method

Abstract

The invention provides a storage battery pack open-circuit failure prevention assembly for a spacecraft and a control method. The storage battery pack open-circuit failure prevention assembly comprises a bidirectional charging and discharging module, an information acquisition / control module, a data processing / communication module, a power supply module and a storage battery pack, the bidirectional charging and discharging module is connected with the information acquisition / control module; the information acquisition / control module is connected with the data processing / communication module; the power supply module is connected with the bidirectional charging and discharging module, the information acquisition / control module and the data processing / communication module. And the storage battery pack is connected with the bidirectional charging and discharging module and the information acquisition / control module. The storage battery pack open-circuit failure prevention assembly for thespacecraft is simple in interface and relatively independent, charging and discharging of the storage battery pack are not affected when the storage battery pack is normal, and use of a storage battery pack charging and discharging control circuit is not affected when open-circuit faults happen to the single storage battery pack.

Description

technical field [0001] The invention relates to the technical field of battery pack open-circuit failure prevention, in particular to an open-circuit failure prevention component and control method for a battery pack used in spacecraft. Background technique [0002] At present, battery packs are used in each spacecraft as a primary power supply, and each spacecraft is equipped with one or more battery packs. Due to the long-term charge-discharge cycle, the seal fails, and a large amount of monomer electrolyte leaks to cause an open circuit; in addition, it may also be caused by The manufacturing process is not strictly controlled, and the internal welding of the battery is disconnected, resulting in an open circuit. The open circuit is the most serious failure mode of the battery. For the single-pack battery pack plan, the open circuit of the battery pack is a fatal danger. For two or more For the battery pack solution, if one group of batteries fails in open circuit, the di...

AI Technical Summary

Problems solved by technology

[0004] Patent document ZL201610061144.7 discloses an open-circuit monitoring device for battery packs. This patent is mainly aimed at the detection of open-circuit conditions in battery packs used on the ground. On the one hand, it is not suitable for spacecraft and does not have the ability to continue to maintain the use of battery packs; retrieved Application No. CN200720079704.8 for "Single Cell Open Circuit Protection Device for Battery Pack", this patent introduces the open circuit protection device for battery cell of electric locomotive battery pack, which is not suitable for spacecraft

Images