Fault detection method for lithium ion storage battery pack of deep space detector
A technology for deep space probes and battery packs, applied in the field of spacecraft, can solve problems such as single fault detection methods, and achieve the effects of improving on-orbit working life and reliability, eliminating test errors, and improving reliability and safety.
Pending Publication Date: 2021-11-19
SHANGHAI SATELLITE ENG INST
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[0008] Regarding the above-mentioned related technologies, the inventor believes that the above-mentioned solution uses a single fault detection method to determine whether a single fault has actually occurred. Therefore, it is necessary to propose a technical solution to improve the above-mentioned technical problems
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[0036] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.
[0037] The invention provides a fault detection method for lithium-ion battery packs of deep space detectors. The voltage of the same battery pack is sent from different channels, that is, the battery pack voltage U1 and the battery pack voltage U2, and the battery pack voltage U used for control is taken out through an algorithm; The lithium-ion battery pack of the air detector is composed of n parallel blocks connected in series, and the parallel block is formed by the parallel connection of m battery ...
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The invention provides a fault detection method for a lithium ion storage battery pack of a deep space detector, which is used for providing stable energy for the deep space detector in a full-life working period of the lithium ion storage battery pack and determining the success or failure of the deep space detector. The deep space detector monitors the working state of the lithium ion storage battery pack in real time to prevent the lithium ion storage battery pack from faults such as overcharge and overdischarge, and the voltage of the lithium ion storage battery pack can reflect the health state of a battery. Therefore, in-orbit management of the lithium ion storage battery pack under the condition that the battery voltage is used as information input needs to judge the correctness of the information of the battery voltage, and the correct voltage information can ensure that the lithium ion storage battery pack works normally in orbit. According to the method, whether the storage battery pack is normal or not is correctly judged according to the voltage information of the lithium ion storage battery, and what strategy is adopted to manage the storage battery pack under the abnormal condition is provided, so that great help is provided for greatly prolonging the on-orbit service life of the storage battery and improving the reliability of the storage battery.
Description
technical field [0001] The invention relates to the technical field of spacecraft, in particular to a fault detection method for a lithium-ion battery pack of a deep space probe. Background technique [0002] The mission of deep space probes has a long flight distance and a long duration, and there are a lot of unknowns and uncertainties in the space environment. The timeliness of manual intervention is poor, and the probes need to have a high degree of autonomous management capabilities. The lithium-ion battery is the life guarantee of the detector, and the performance and safety of the lithium-ion battery determine the safety and reliability of the whole device. However, the requirements for lithium-ion battery packs are relatively strict, and the working temperature should not be too high or too low, otherwise it will have a great impact on the performance of the battery itself. [0003] Therefore, in the process of development, considering the above factors and consider...
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IPC IPC(8): G01R31/396G01R31/378G01R31/385
CPCG01R31/396G01R31/378G01R31/385
Inventor 闫奎朱新波陈明花张海曹建伟王君磊
Owner SHANGHAI SATELLITE ENG INST