High-power high-efficiency satellite power supply system based on high voltage and low voltage double buses

A technology of satellite power supply and dual bus bars, which is applied in different battery charging, current collectors, photovoltaic power generation, etc., to meet the design requirements of current derating, deep discharge depth, and reduce the effect of heat dissipation area

Active Publication Date: 2017-02-15
AEROSPACE DONGFANGHONG SATELLITE
View PDF7 Cites 45 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing small satellite power system mainly adopts single-bus technology, that is, the satellite primary power bus is a single 28.5V volta

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-power high-efficiency satellite power supply system based on high voltage and low voltage double buses
  • High-power high-efficiency satellite power supply system based on high voltage and low voltage double buses
  • High-power high-efficiency satellite power supply system based on high voltage and low voltage double buses

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] A high-efficiency, light-weight power supply system for spacecraft is characterized in that it is composed of a solar battery array, an energy storage battery pack (lithium ion battery and a nickel-cadmium battery pack) and a power controller. For the long-term load of 600W and the short-term peak demand of 1000W, the power system selects two independent busbars, of which the 28V busbar adopts a fully regulated design (the actual voltage is between 28.5V and 29.5V). Cell array 8 uses triple-junction gallium arsenide cells with an efficiency of 28% (with an area of ​​about 5.22m 2), the storage battery pack is composed of 18 high-power nickel-cadmium storage battery packs with a single capacity of 70Ah in series. The 42V bus bar adopts a semi-regulated design (the actual voltage is between 38V and 45.1V), and the solar cell array also uses triple-junction GaAs cells with an efficiency of 28% (the area is about 1.74m 2 ), the battery pack is composed of 11 high-power lit...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a high-power high-efficiency satellite power supply system based on high voltage and low voltage double buses. The system comprises a solar battery array, an energy storage battery pack, a power supply controller, a power supply lower computer and a power distribution part. All-adjusting bus design is employed for a 28 V bus. Semi-adjusting bus design is employed for a 42 V bus. Power for signal collection and control of the two buses is supplied by the 28 V bus. Functions such as parameter collection, remote control instruction output, battery pack management and satellite service host communication are finished by sharing the same power supply lower computer. According to a high voltage and low voltage bus system related to the system, a new type topological structure with independent power circuits and a shared control circuit is employed. Moreover, an energy management strategy is improved; long-term load and short-term load of partial load are configured on the all-adjusting low-voltage bus. The short-term load of the rest load is configured on the semi-adjusting low-voltage bus. The current density of the system is effectively reduced. The power level of the system is improved. The high-efficiency, light-weight and high-power satellite power supply system is realized.

Description

technical field [0001] The invention relates to a high-power and high-efficiency satellite power supply system based on high-voltage and low-voltage double buses. The invention is suitable for small satellites with large long-term power consumption and short-term high-power load work requirements, and can realize a compact power supply system with high specific power and high efficiency. Background technique [0002] The satellite power system is composed of a power controller, a battery pack and a solar cell array, which are always in working condition during the entire life of the satellite to meet the power requirements of the satellite in various working modes during the entire life. When there is a demand for high power output on the planet, it is usually necessary to jointly discharge the solar cell array and the battery pack. For satellites with high long-term power and short-term high-power load, the battery pack is mainly used to supply power for the load. The exi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H02J7/35H02J7/00
CPCH02J7/00H02J7/0003H02J7/35Y02E10/56
Inventor 贾晓冬鄢婉娟张勇侯伟江国强
Owner AEROSPACE DONGFANGHONG SATELLITE
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap