CN103723288B - Micro-satellite is open for sub power distribution system - Google Patents
Micro-satellite is open for sub power distribution system Download PDFInfo
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- CN103723288B CN103723288B CN201310705290.5A CN201310705290A CN103723288B CN 103723288 B CN103723288 B CN 103723288B CN 201310705290 A CN201310705290 A CN 201310705290A CN 103723288 B CN103723288 B CN 103723288B
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Abstract
Micro-satellite provided by the invention is open for sub power distribution system, comprising: folding type flexible solar cell array 1, multiple degree of freedom solar cell array 2, lithium polymer storage battery group A31, miniature management of charging and discharging modules A 41, miniature management of charging and discharging module B42, lithium polymer storage battery group B32 and the integrated distribution management module 5 of height; Folding type flexible solar cell array 1, lithium polymer storage battery group A31 are connected with miniature management of charging and discharging modules A 41; Multiple degree of freedom solar cell array 2, lithium polymer storage battery group B32 are connected with miniature management of charging and discharging module B42 cable; High integrated distribution management module 5 is connected with miniature management of charging and discharging modules A 41, miniature management of charging and discharging module B42.Present system configuration is simple, rationally carries out Redundancy Design, both improves system performance, considerably reduce development cost again, can meet the demand that micro-satellite is little, lightweight for sub power distribution system bulk, the lead time is short.
Description
Technical field
The present invention relates to satellite power supply and distribution technical field, be specifically related to the open power supply-distribution system of micro-satellite, particularly relate to a kind of 50kg level micro-satellite open for sub power distribution system.
Background technology
Convert luminous energy or chemical power to electric energy for sub power distribution system by certain physical change or chemical change, carry out as required storing, regulate and converting, then power to each subsystem of satellite.Generally be made up of solar cell array, battery pack, power-supply controller of electric, supply convertor, distributor and cable network for sub power distribution system.
Conventional satellite adopts rigid substrates usually for sub power distribution system solar cell array, and driven by one dimension or two dimension and realize Direct to the sun, symmetry is arranged on satellite north north; Battery pack is generally ickel-cadmium cell or lithium ion battery connection in series-parallel composition; Power-supply controller of electric adopts modular design usually, is made up of multiple functional modules such as discharge and recharge adjustment, shunt regulating and electric capacity battle arrays; Supply convertor generally adopts multiple module level Components integration in each unit of satellite; Distributor adopts relay as performer usually, is controlled by spaceborne computer; Energy Transfer and the Signal transmissions of whole satellite are then realized by cable network.
Be limited to the restriction of volume and weight, the energy supplying sub power distribution system can provide for whole star of existing micro-satellite is only several watts to tens of watts and maximum only support ten number road distribution ways, seriously limits the field of application of micro-satellite.
Current space industry does not find explanation or the report of the similar correlation technique with the present invention, not yet collects similar data both at home and abroad yet.
Summary of the invention
For defect of the prior art, the object of this invention is to provide a kind of micro-satellite open for sub power distribution system, provide for sub power distribution system the problem that electric energy is not enough, distribution way is few to solve existing micro-satellite.Utilize the present invention, power stage and distribution way that micro-satellite supplies sub power distribution system can be increased substantially under the condition not increasing satellite volume and weight.
Open for sub power distribution system according to micro-satellite provided by the invention, comprising: folding type flexible solar cell array 1, multiple degree of freedom solar cell array 2, lithium polymer storage battery group A31, miniature management of charging and discharging modules A 41, miniature management of charging and discharging module B42, lithium polymer storage battery group B32 and the integrated distribution management module 5 of height;
Folding type flexible solar cell array 1, lithium polymer storage battery group A31 and miniature management of charging and discharging modules A 41 are linked together by cable; Multiple degree of freedom solar cell array 2, lithium polymer storage battery group B32 and miniature management of charging and discharging module B42 are linked together by cable; High integrated distribution management module 5 is linked together by cable and miniature management of charging and discharging modules A 41, miniature management of charging and discharging module B42.
Preferably, described folding type flexible solar cell array 1, primarily of lightweight flexible solar cell substrate, high conversion efficiency three-junction gallium arsenide solar battery and minicell battle array development mechanism composition, high conversion efficiency three-junction gallium arsenide solar battery is connected lightweight flexible solar cell substrate with minicell battle array development mechanism.
Preferably, described multiple degree of freedom solar cell array 2, primarily of rigidity solar cell substrate, high conversion efficiency three-junction gallium arsenide solar battery and minicell battle array driver train composition, high conversion efficiency three-junction gallium arsenide solar battery is connected rigidity solar cell substrate with minicell battle array driver train.
Preferably, described lithium polymer storage battery group A31 and lithium polymer storage battery group B32, is respectively composed in series primarily of two pieces of lithium polymer batteries.
Preferably, described miniature management of charging and discharging modules A 41 and miniature management of charging and discharging module B42, all from the charge and discharge process of master control storage battery, and all can comprise by the directly actuated battery discharging switch of spaceborne computer.
Preferably, the integrated distribution management module 5 of described height, based on commercial power metal-oxide-semiconductor multichannel array, supports 1553B bus, controls distribution and the active and standby part handoff functionality of computing machine for providing maximum 40 tunnels.
Preferably, after the satellite satellite and the rocket are separated, folding type flexible solar cell array 1 launches, and electric energy transmits paramount integrated distribution management module 5 by miniature management of charging and discharging modules A 41, then is dispensed to other unit module in star by the integrated distribution management module 5 of height; Also charged to lithium polymer storage battery group A31 by miniature management of charging and discharging modules A 41 after meeting satellite basic power source demand simultaneously.
Preferably, after the satellite satellite and the rocket are separated, multiple degree of freedom solar cell array 2 unlocks and launches and Direct to the sun, and electric energy transmits paramount integrated distribution management module 5 by miniature management of charging and discharging module B42, then is dispensed to other unit module in star by the integrated distribution management module 5 of height; Also charged to lithium polymer storage battery group B32 by miniature management of charging and discharging module B42 after meeting satellite basic power source demand simultaneously.
Preferably, when satellite carries out space tasks, miniature management of charging and discharging modules A 41 and miniature management of charging and discharging module B42 open discharge switch, combined by folding type flexible solar cell array 1, multiple degree of freedom solar cell array 2, lithium polymer storage battery group A31 and lithium polymer storage battery group B32 and power to the integrated distribution management module 5 of height, then be dispensed to other unit module in star by the integrated distribution management module 5 of height.
Preferably, after satellite completes space tasks, when the shade phase, miniature management of charging and discharging modules A 41 and miniature management of charging and discharging module B42 open discharge switch, are powered to the integrated distribution management module 5 of height by lithium polymer storage battery group A31 and lithium polymer storage battery group B32; When illumination period, powered to the integrated distribution management module 5 of height by miniature management of charging and discharging modules A 41 and miniature management of charging and discharging module B42 by folding type flexible solar cell array 1 and multiple degree of freedom solar cell array 2, and charge to lithium polymer storage battery group A31 and lithium polymer storage battery group B32 simultaneously.
Compared with prior art, the present invention has following beneficial effect:
1, the present invention adopts advanced microelectronic technique and material technology, system configuration is simple, rationally carry out Redundancy Design, select device and the assembly of industrial grade and business level, both improve system performance, shorten the development time, greatly reduce development cost again, the demand that 50kg level micro-satellite is low for sub power distribution system cost, volume is little, lightweight, the lead time is short can be met.
2, employing does not regulate bussed supply system, and system configuration is simple, shortens the development time;
3, adopting the folding type flexible solar cell array of lightness under the constant condition of distributed weight, increase substantially the solar cell of satellite can pieces of cloth area;
4, under satellite attitude maneuvering condition, by the rotation of multiple degree of freedom solar cell array, system ensures that solar cell is in best illumination condition;
5, adopt the lithium polymer battery with more high-energy-density as energy storage device, for satellite provides the sufficient energy in the shade phase;
6, the high integrated chip of business level is adopted to substitute management of charging and discharging and the distribution controlling functions that traditional stand-alone device realizes power supply;
5, by the Redundancy Design of two solar cell array, two battery pack and two management of charging and discharging module, the safety and reliability of whole subsystem is strengthened;
8, the multisystem combined modes such as thermal control, observing and controlling, number biography and rail control are adopted to realize not regulating the bus energy to shunt.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 is that micro-satellite is open for sub power distribution system principle composition frame chart.
In figure:
1 is folding type flexible solar cell array;
2 is multiple degree of freedom solar cell array;
31 is lithium polymer storage battery group A;
32 is lithium polymer storage battery group B;
41 is miniature management of charging and discharging modules A;
42 is miniature management of charging and discharging module B;
5 is high integrated distribution management module.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made.These all belong to protection scope of the present invention.
Please refer to Fig. 1, Fig. 1 is the open principle composition frame chart for sub power distribution system of a kind of micro-satellite provided by the invention, as shown in Figure 1, micro-satellite provided by the invention is open for sub power distribution system, adopt and do not regulate bus, comprise folding type flexible solar cell array, multiple degree of freedom solar cell array, lithium polymer storage battery group, miniature management of charging and discharging module and the integrated distribution management module of height.
Folding type flexible solar cell array forms primarily of lightweight flexible solar cell substrate, high conversion efficiency three-junction gallium arsenide solar battery and minicell battle array development mechanism, whole cell array weight is not more than 2kg, for satellite provides power to be not less than 90W under optimum illumination condition.
Multiple degree of freedom solar cell array forms primarily of rigidity solar cell substrate, high conversion efficiency three-junction gallium arsenide solar battery and minicell battle array driver train, whole cell array weight is not more than 2.5kg, maximum output power is not less than 90W, can realize maximum six degree of freedom and rotate.
Lithium polymer storage battery group is composed in series primarily of two pieces of lithium polymer batteries, maximumly stores 35Wh electric energy, and single battery pack weight is not more than 500g, and average output voltage is 3.5V, and capacity is not less than 10Ah.
Miniature management of charging and discharging module, based on the chip design of business level management of charging and discharging, from the charge and discharge process of master control storage battery, and can comprise battery discharging switch, directly controlled by spaceborne computer, weight is not more than 50g, and maximum discharge current is not less than 10A, and maximum charging current is not less than 8A.
High integrated distribution management module, based on commercial power metal-oxide-semiconductor multichannel array, can provide maximum 40 tunnels to control distribution and the active and standby part handoff functionality of computing machine.High integrated distribution management module adopts 1553B bus to communicate with spaceborne computer, by FPGA encoded control busway break-make after reception instruction.Distribution performer adopts commercial power metal-oxide-semiconductor multichannel array, and maximum 40 tunnels can be provided to control distribution, and every road maximum current output is not less than 5A.High integrated distribution management module also provides computer backup commutation circuit, and is directly controlled by TT&C system.High integrated distribution management module weight is not more than 300g.
The open working process for sub power distribution system of micro-satellite provided by the invention is as follows:
The satellite satellite and the rocket provide the energy respectively by miniature management of charging and discharging modules A 41 and miniature management of charging and discharging module B42 to satellite by lithium polymer storage battery group A31 and lithium polymer storage battery group B32 before being separated.
After the satellite satellite and the rocket are separated, folding type flexible solar cell array 1 launches, and electric energy transmits paramount integrated distribution management module 5 by miniature management of charging and discharging modules A 41, then is dispensed to other unit module in star by the integrated distribution management module 5 of height.Also charged to lithium polymer storage battery group A31 by miniature management of charging and discharging modules A 41 after meeting satellite basic power source demand simultaneously.
After the satellite satellite and the rocket are separated, multiple degree of freedom solar cell array 2 unlocks and launches and Direct to the sun, and electric energy transmits paramount integrated distribution management module 5 by miniature management of charging and discharging module B42, then is dispensed to other unit module in star by the integrated distribution management module 5 of height.Also charged to lithium polymer storage battery group B32 by miniature management of charging and discharging module B42 after meeting satellite basic power source demand simultaneously.
When satellite carries out space tasks, miniature management of charging and discharging modules A 41 and miniature management of charging and discharging module B42 open discharge switch, combined by folding type flexible solar cell array 1, multiple degree of freedom solar cell array 2, lithium polymer storage battery group A31 and lithium polymer storage battery group B32 and power to the integrated distribution management module 5 of height, then be dispensed to other unit module in star by the integrated distribution management module 5 of height.
After satellite completes space tasks, when the shade phase, miniature management of charging and discharging modules A 41 and miniature management of charging and discharging module B42 open discharge switch, are powered to the integrated distribution management module 5 of height by lithium polymer storage battery group A31 and lithium polymer storage battery group B32.When illumination period, powered to the integrated distribution management module 5 of height by miniature management of charging and discharging modules A 41 and miniature management of charging and discharging module B42 by folding type flexible solar cell array 1 and multiple degree of freedom solar cell array 2, and charge to lithium polymer storage battery group A31 and lithium polymer storage battery group B32 simultaneously.
After satellite completes battery charging, unnecessary electric energy by spaceborne computer from the thermal control of master control satellite, observing and controlling, number pass and Attitude and orbit control system mode of operation realize do not regulate the energy of bus power supply-distribution system to shunt.
Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (9)
1. a micro-satellite is open for sub power distribution system, it is characterized in that, comprising: the integrated distribution management module (5) of folding type flexible solar cell array (1), multiple degree of freedom solar cell array (2), lithium polymer storage battery group A (31), miniature management of charging and discharging modules A (41), miniature management of charging and discharging module B (42), lithium polymer storage battery group B (32) and height;
Folding type flexible solar cell array (1), lithium polymer storage battery group A (31) and miniature management of charging and discharging modules A (41) are linked together by cable; Multiple degree of freedom solar cell array (2), lithium polymer storage battery group B (32) and miniature management of charging and discharging module B (42) are linked together by cable; High integrated distribution management module (5) is linked together by cable and miniature management of charging and discharging modules A (41), miniature management of charging and discharging module B (42);
After the satellite satellite and the rocket are separated, folding type flexible solar cell array (1) launches, electric energy transmits paramount integrated distribution management module (5) by miniature management of charging and discharging modules A (41), then is dispensed to other unit module in star by the integrated distribution management module (5) of height; Also charged to lithium polymer storage battery group A (31) by miniature management of charging and discharging modules A (41) after meeting satellite basic power source demand simultaneously.
2. micro-satellite according to claim 1 is open for sub power distribution system, it is characterized in that, described folding type flexible solar cell array (1), primarily of lightweight flexible solar cell substrate, high conversion efficiency three-junction gallium arsenide solar battery and minicell battle array development mechanism composition, high conversion efficiency three-junction gallium arsenide solar battery is connected lightweight flexible solar cell substrate with minicell battle array development mechanism.
3. micro-satellite according to claim 1 is open for sub power distribution system, it is characterized in that, described multiple degree of freedom solar cell array (2), primarily of rigidity solar cell substrate, high conversion efficiency three-junction gallium arsenide solar battery and minicell battle array driver train composition, high conversion efficiency three-junction gallium arsenide solar battery is connected rigidity solar cell substrate with minicell battle array driver train.
4. micro-satellite according to claim 1 is open for sub power distribution system, it is characterized in that, described lithium polymer storage battery group A (31) and lithium polymer storage battery group B (32), be respectively composed in series primarily of two pieces of lithium polymer batteries.
5. micro-satellite according to claim 1 is open for sub power distribution system, it is characterized in that, described miniature management of charging and discharging modules A (41) and miniature management of charging and discharging module B (42), all from the charge and discharge process of master control storage battery, and all can comprise by the directly actuated battery discharging switch of spaceborne computer.
6. micro-satellite according to claim 1 is open for sub power distribution system, it is characterized in that, the integrated distribution management module (5) of described height, based on commercial power metal-oxide-semiconductor multichannel array, supporting 1553B bus, controlling distribution and the active and standby part handoff functionality of computing machine for providing maximum 40 tunnels.
7. micro-satellite according to claim 1 is open for sub power distribution system, it is characterized in that, after the satellite satellite and the rocket are separated, multiple degree of freedom solar cell array (2) unlocks and launches and Direct to the sun, electric energy transmits paramount integrated distribution management module (5) by miniature management of charging and discharging module B (42), then is dispensed to other unit module in star by the integrated distribution management module (5) of height; Also charged to lithium polymer storage battery group B (32) by miniature management of charging and discharging module B (42) after meeting satellite basic power source demand simultaneously.
8. micro-satellite according to claim 1 is open for sub power distribution system, it is characterized in that, when satellite carries out space tasks, miniature management of charging and discharging modules A (41) and miniature management of charging and discharging module B (42) open discharge switch, by folding type flexible solar cell array (1), multiple degree of freedom solar cell array (2), lithium polymer storage battery group A (31) and lithium polymer storage battery group B (32) combines to integrated distribution management module (5) power supply of height, other unit module in star is dispensed to again by the integrated distribution management module (5) of height.
9. micro-satellite according to claim 1 is open for sub power distribution system, it is characterized in that, after satellite completes space tasks, when the shade phase, miniature management of charging and discharging modules A (41) and miniature management of charging and discharging module B (42) open discharge switch, are powered to the integrated distribution management module (5) of height by lithium polymer storage battery group A (31) and lithium polymer storage battery group B (32); When illumination period, powered to the integrated distribution management module (5) of height by miniature management of charging and discharging modules A (41) and miniature management of charging and discharging module B (42) by folding type flexible solar cell array (1) and multiple degree of freedom solar cell array (2), and simultaneously to lithium polymer storage battery group A (31) and lithium polymer storage battery group B (32) charging.
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| CN105083594A (en) * | 2015-07-31 | 2015-11-25 | 上海卫星工程研究所 | Non-contact type nano-satellite-carried power supply system and method based on photoelectric sensing |
| CN107273325B (en) * | 2017-05-04 | 2020-04-14 | 上海空间电源研究所 | 1553B bus transmission method applied to rotating end and fixed end |
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