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A control method for high-orbit satellite lithium-ion battery pack

A technology for battery packs and high-orbit satellites, which is applied in battery circuit devices, arrangement of multiple synchronous batteries, safety/protection battery circuits, etc. Streamlined method flow and increased accuracy

Active Publication Date: 2020-07-14
CHINA ACADEMY OF SPACE TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is: aiming at the problem that the control method in the prior art cannot adopt different control thresholds for the new lithium battery pack in different flight time periods of the satellite, a control method for the high-orbit satellite lithium-ion battery pack is proposed

Method used

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  • A control method for high-orbit satellite lithium-ion battery pack
  • A control method for high-orbit satellite lithium-ion battery pack
  • A control method for high-orbit satellite lithium-ion battery pack

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Embodiment Construction

[0036] A kind of high-orbit satellite lithium-ion storage battery pack control method, such as figure 1 As shown, the specific steps are as follows:

[0037] (1) During the normal on-orbit operation in the light season, judge whether the battery pack is preset according to the first supplementary charging threshold, voltage protection threshold, current protection threshold, and first temperature protection threshold when the satellite battery pack is in normal operation of the solar wing. Protection is required, and the specific method for judging is as follows:

[0038] (1a) When the voltage of the battery pack is lower than the first supplementary charging lower limit threshold in the light season, start charging the battery pack until it is higher than the first supplementary charging upper limit threshold in the light season, stop charging the battery pack, the supplementary charging lower limit threshold is 76V, and the upper threshold of supplementary charging is 80V; ...

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Abstract

The invention provides a method for controlling a high-orbit satellite lithium ion battery pack. Voltage, current and temperature parameters of a satellite battery pack within different flight periodsof an illumination season and an earth shadow season are monitored; and calculation and monitoring are carried out by introducing an additional charging threshold and a discharge capacity and thresholds of different flight periods are corrected to realize precise controlling of the storage battery pack during the in-orbit operation period of the satellite. Therefore, the control flow is simplified; the stability is improved; and the emergency condition can be predicted in advance.

Description

technical field [0001] The invention relates to a method for controlling a high-orbit satellite lithium-ion battery pack, belonging to the field of satellite power supply control. Background technique [0002] Batteries are an important part of satellite energy systems. During the eclipse period, when there is no solar cell power output or the output capacity is insufficient, the battery pack provides energy for the whole star to ensure the power demand of each electric load. [0003] Due to the continuous improvement of the weight-to-power requirements for space satellite energy storage power supplies, traditional nickel-hydrogen batteries cannot meet the weight index requirements of large-capacity GEO communication satellite platforms, and have gradually been replaced by lithium-ion batteries. Lithium-ion batteries of the same energy level are only 1 / 2 of hydrogen-nickel batteries, which can increase the load ratio of satellite platforms and reduce launch costs. At the sa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00B64G1/42B64G1/44
CPCB64G1/42B64G1/44H02J7/0026H02J7/0077H02J7/0091
Inventor 黄智李红林余文涛张文爽魏强邢杰
Owner CHINA ACADEMY OF SPACE TECHNOLOGY
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