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High-reliability charging control method for satellite lithium ion storage battery

A charging control method and battery technology, which are applied in the field of satellite power sources, can solve problems such as low reliability, and achieve the effect of high reliability

Active Publication Date: 2016-03-23
中电科蓝天科技股份有限公司
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AI Technical Summary

Problems solved by technology

[0003] At present, the charging control of satellite lithium-ion batteries is generally realized by the lower computer of the power supply by controlling the digital-to-analog converter (DAC). The circuit is simple, but the reliability is low, depending on the reliability of the lower computer of the power supply. control and charge voltage control

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Embodiment Construction

[0017] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0018] In the present invention, the charging control of the satellite lithium-ion storage battery is realized by a battery error amplifier circuit (BEA). The circuit is mainly composed of an analog switch, an op amp, and a triode, and adopts a two-out-of-three redundant design with high reliability. BEA can realize the three-domain control of the battery, that is, bus control, charging current control and charging voltage control;

[0019] see figure 1 with figure 2 , a highly reliable charging control method for satellite lithium-ion batteries. According to the charging characteristics of lithium-ion batteries, it is necessary to add a battery error amplifier circuit (BEA) on the basis of the traditional charge regulator BCR to achieve ha...

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Abstract

The invention discloses a high-reliability charging control method for a satellite lithium ion storage battery, and relates to the technical field of satellite power supplies. The method is characterized by comprising the following steps that when charging starts, if the whole satellite power does not meet the charging power requirement, a charging regulator automatically regulates a bus; when the whole satellite power meets the charging power requirement and does not reach a set constant voltage value of a storage battery, constant current charging is performed on the storage battery, and the battery voltage is gradually increased; when the battery voltage reaches a set value, constant voltage charging is performed. According to the high-reliability charging control method for the satellite lithium ion storage battery, three-domain control, that is, bus control, charging current control and charging voltage control on the battery can be achieved, and the advantages of being high in reliability is achieved.

Description

technical field [0001] The invention relates to the technical field of satellite power supplies, in particular to a charging control method for a highly reliable satellite lithium-ion storage battery. It is suitable for high-orbit military satellite platforms with high reliability requirements, and realizes three-domain charging control of lithium-ion batteries. Background technique [0002] The charging control circuit of the satellite lithium-ion battery is an important part of the space power system. It is located in the power controller (PCU), and cooperates with the charge regulator (BCR) to realize the charging control of the lithium-ion battery by the power controller (PCU). [0003] At present, the charging control of satellite lithium-ion batteries is generally realized by the lower computer of the power supply by controlling the digital-to-analog converter (DAC). The circuit is simple, but the reliability is low, depending on the reliability of the lower computer o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/44H02J7/00
CPCH01M10/44H02J7/007Y02E60/10
Inventor 史更新马力君张泰峰
Owner 中电科蓝天科技股份有限公司
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