Moonlet power supply multistage safety protection method and system

Abstract

The invention discloses a moonlet power supply multistage safety protection method and system, and belongs to the technical field of satellite power supply design. According to the method, a target satellite power supply is configured into four working modes including a normal working mode M1, a safety mode M2, a software protection mode M3 and a hardware protection mode M4; when the software real-time detection voltage is smaller than V2, performing switching to M2 from M1, and if the real-time detection voltage is further smaller than V3, performing switching to M3 from M2; and under the condition that the M3 fails, when the hardware real-time detection voltage is smaller than the V4, performing switching to M4 from M3. And when the real-time detection voltage of the software or the hardware is greater than V1, performing switching from M3 or M4 to S1. By adopting the power supply multistage safety protection method, the moonlet can intelligently judge the connection and disconnection operation of a charge and discharge switch according to the state on the satellite, so that the target satellite has the capabilities of isolating load faults, preventing the storage battery from being over-discharged and self-recovering after the whole satellite is powered off.

Description

technical field [0001] The invention relates to the technical field of small satellite power supplies, in particular to a multi-level safety protection method and system for small satellite power supplies. Background technique [0002] According to the quality of satellites, satellites less than 1000 kg are usually called small satellites in a broad sense. With the development of satellite technology, there is an urgent need to speed up the development cycle of satellites while reducing satellite costs and risks. Therefore, small satellite technology has emerged as the times require. [0003] In the small satellite power supply technology, the reliability and safety of the small satellite's entire satellite power supply and distribution are the key factors that affect the smooth execution of various tasks of the small satellite's entire satellite. Existing small satellites generally do not have the ability to recover when the entire satellite fails. This is mainly due to: ...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: to provide a good multi-level safety protection method and system for small satellite power supplies, and to solve the problem that the power supply does not have recovery capability when the whole satellite fails in the existing small satellite power supply design

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