Evaluation method and evaluation system for on-orbit real-time capacity of spacecraft storage battery pack
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANGHAI INST OF SPACE POWER SOURCES
- Publication Date
- 2020-07-31
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The invention relates to a ground evaluation method and an evaluation system for the on-orbit real-time capacity of a spacecraft lithium-ion battery pack. Background technique
[0002] With the increasingly complex on-orbit flight missions of spacecraft, especially for deep space probes, which often have the characteristics of tight energy margins and large on-orbit discharge depths, as a commonly used key energy storage device, the lithium-ion battery pack’s Correspondingly, higher requirements are put forward for the accuracy of real-time charging and discharging capacity management.
[0003] At present, the commonly used methods for on-orbit real-time capacity assessment of lithium-ion battery packs mainly include current integration method and voltage method. The current integration method will produce obvious cumulative errors when the lithium-ion battery pack is not fully charged for many turns. Since the voltage law does not take temperature, ...