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Highly reliable satellite power controller battery charging management unit

A satellite power supply and charging management technology, which is applied to battery charging management, battery circuit devices, collectors, etc., can solve problems such as loss of battery charging function and satellite inoperability

Active Publication Date: 2019-03-01
SHENZHEN AEROSPACE NEW POWER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Analyze the role played by BCM. If BCM fails, the charging function of the battery will be lost. After a long enough time, the battery will be exhausted, causing the satellite to fail to work in the shadow area. Therefore, the design of BCM requires high reliability.

Method used

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  • Highly reliable satellite power controller battery charging management unit
  • Highly reliable satellite power controller battery charging management unit
  • Highly reliable satellite power controller battery charging management unit

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Embodiment Construction

[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0021] Aiming at the high reliability design requirement of satellite power supply, the present invention proposes a charging management unit of a satellite power supply controller with four redundancy and dual bus interfaces, which is suitable for modular design, as shown in the attached figure 2 As shown, it includes four battery charging management subunits BCM1, BCM2, BCM3, BCM4, and a dual-port digital-to-analog converter.

[0022] Each BCM (BCM1, BCM2, BCM3, BCM4) input signal includes charging voltage value, charging current value, battery voltage sampling signal VBAT and main error signal ...

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Abstract

The invention provides a high-reliability satellite power supply controller battery charging management unit comprising four battery charging management subunits BCM1, BCM2, BCM3 and BCM4 and eight dual-port digital-to-analog converters. The input signal of each BCM comprises a charging voltage value, a charging current value, a storage battery voltage sampling signal VBAT and a main error signal VMEA. The charging current value and the charging voltage value are obtained through the dual-port digital-to-analog converters. The two ports of each dual-port digital-to-analog converter are respectively connected with master and spare controllers through master and spare buses. The output signal of each BCM is connected with a four-redundancy voter so as to generate a VBCM signal through voting. According to the battery charging management unit, the requirement of high reliability of a satellite power supply controller can be met and failure rate can be reduced.

Description

technical field [0001] The invention relates to the technical field of satellite power controllers, in particular to a highly reliable satellite power controller battery charging management unit. Background technique [0002] The power controller PCU of the fully regulated bus plays an important role in the satellite power supply and distribution system. No matter whether the satellite is in the light area or the shadow area, the power regulation system keeps the bus voltage constant at a certain rated value. That is, the unified management of the power supply subsystem is realized by the unified MEA bus error amplification signal. When the output power of the solar cell array cannot meet the needs of the load, the bus voltage is regulated by the discharge regulator BDR to provide power to the output bus; when the output power of the solar cell array is greater than the load requirement but cannot meet the preset charging current requirements of the battery pack When the bu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H02J9/06H02J7/35
CPCH02J7/0022H02J7/35H02J9/061Y02B10/70
Inventor 王超李雅琳陈红
Owner SHENZHEN AEROSPACE NEW POWER TECH