Over-discharging protection and autonomous power restoration control method of spacecraft lithium battery

A technology of over-discharge protection and control method, applied in the direction of battery over-discharge protection, battery disconnection circuit, battery circuit device, etc., can solve problems such as the impact of on-orbit flight mission completion, and achieve over-discharge protection and autonomous recovery power supply control process Safe and stable, avoid over-discharge, improve the effect of service life

Active Publication Date: 2017-05-31
BEIJING INST OF SPACECRAFT SYST ENG
View PDF3 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, if the spacecraft enters the image again, the entire star will be powered off again, which will seriously affect the completion of the mission in orbit

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Over-discharging protection and autonomous power restoration control method of spacecraft lithium battery
  • Over-discharging protection and autonomous power restoration control method of spacecraft lithium battery
  • Over-discharging protection and autonomous power restoration control method of spacecraft lithium battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] In order to make the solution of the present invention clearer, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0040] Such as Figure 1~3 Shown, a kind of over-discharging protection of spacecraft lithium battery and self-recovering power supply control method, comprise the steps:

[0041] The first step is to use the first lower computer 1 to detect the voltage of the battery pack and the voltage of the single battery, and when it is detected that the battery pack has entered the first-stage over-discharge state, set the first-stage over-discharge flag to 1;

[0042] The second step is to use the first lower computer 1 to detect the voltage of the battery pack and the voltage of the single battery. When it is detected that the battery pack has entered the second-stage over-discharge state, set the second-stage over-discharge flag to 1;

[0043]In the third step, the first lower computer 1...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an over-discharging protection and autonomous power restoration control method of a spacecraft lithium battery. Aiming at the characteristics of multiple cabin sections of a part of spacecrafts, high integration degree of equipment, a complicated flight process outside a segmental arc, and the like, over-discharging protection and autonomous power restoration control of a multiplexed lithium ion storage battery unit for two cabin sections are realized by adopting a software control mode by a lower computer of a power supply system. The storage battery unit voltage and the monomer voltage can be autonomously detected through the lower computer and can be compared with a preset over-discharging threshold value, and graded power-off protection control on different cabin sections is adopted; after the whole spacecraft is electrified again, a discharging switch can be autonomously switched on through a preset over-discharging restoration voltage threshold value, so that power is recovered, the reliability and the autonomous management capability of the power supply system are increased, over-discharging of an in-orbit lithium ion storage battery unit is effectively prevented, autonomous power restoration control after over-discharging protection is realized, and the service life of lithium ion storage batteries is prolonged.

Description

technical field [0001] The invention relates to an over-discharge protection and self-recovery power supply control method for a lithium battery of a spacecraft, and is especially suitable for carrying out graded over-discharge protection and self-recovery power supply for the lithium battery of a lunar probe, and belongs to the technical field of space power supplies. Background technique [0002] Lithium-ion batteries refer to secondary batteries that use Li+ intercalation compounds as positive and negative active materials. It has the advantages of long cycle life and good safety. In the field of aerospace, lithium batteries are gradually replacing traditional batteries such as nickel-hydrogen and nickel-cadmium, and gradually becoming mainstream energy storage power sources for spacecraft. As a secondary battery widely used in spacecraft power systems, its working condition directly affects the life of the spacecraft. If the lithium battery discharge reaches the cut-of...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
CPCH02J7/00306H02J7/0031H02J7/0063H02J2207/10
Inventor 夏宁杜青蔡晓东王超刘治钢李扬威陈琦
Owner BEIJING INST OF SPACECRAFT SYST ENG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap