CN104102245A - Thermal control device used for improving satellite temperature control precision and thermal control method - Google Patents
Thermal control device used for improving satellite temperature control precision and thermal control method Download PDFInfo
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- CN104102245A CN104102245A CN201410225367.3A CN201410225367A CN104102245A CN 104102245 A CN104102245 A CN 104102245A CN 201410225367 A CN201410225367 A CN 201410225367A CN 104102245 A CN104102245 A CN 104102245A
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Abstract
The invention relates to a thermal control device used for improving the satellite temperature control precision and a thermal control method. The thermal control device and the thermal control method are especially suitable for a satellite with the demand of high precision temperature control, and belong to the technical field of satellite temperature control. The thermal control device comprises a heating piece, a thermal insulation pad, a cuboid and a thermal insulation material. The bottom of the cuboid is used as a device mounting bottom plate. Other five sides of the cuboid are integrally used as a temperature control box. According to the thermal control device and the thermal control method, which are provided by the invention, a high precision loading device realizes high precision temperature control better than 0.1 DEG C; by using the thermal control method designed based on hierarchical thermal control, a very stable boundary condition is provided for the loading device needing high precision temperature control; the primary condition is created for realizing high precision temperature control; on the basis, the thermal control device provided by the invention is used, and an active temperature control technology with a high precision temperature control algorithm is used for the mounting bottom plate of the high precision loading device; and high precision temperature control is realized.
Description
Technical field
The present invention relates to a kind of thermal controls apparatus and thermal control method that improves satellite temperature-controlled precision, be particularly useful for high accuracy temperature control to have the satellite of demand, belong to satellite temperature control technology field.
Background technology
Along with electronic technology development, electronic equipment thermal control requires also more and more higher, and high precision observing and controlling temperature technique is one of important research direction in satellite heat control field.In following spacecraft, some crucial load such as high-precision star clock, precision optical system and accurate inertial navigation gyro are more and more higher to the requirement of temperature control precision, also more and more stricter to temperature stability requirement, temperature-controlled precision requires to have reached milli K level, even higher requirement.At present, abroad aspect solution high-precision temperature control technology, a lot of methods have been adopted, at hardware aspect, adopt the new heat control material thermal control measures such as loop circuit heat pipe, aspect software, external precision temperature is controlled the general intelligent independent control method that adopts, by intelligent control methods such as self-adaptation, fuzzy control, neural networks, design has robustness and intelligent control algolithm, temperature point by zones of different comprehensively judges, reaches the optimum control of temperature, realizes high accuracy temperature control; The simple temperature feedback control method of the general employing of domestic at present traditional heat control strategy, its adopts the temperature sensor paste on instrument surface as response element, adopt method of controlling switch, there is the advantages such as reliability is high, control is simple, fast response time, but fairly simple because of FEEDBACK CONTROL means, be difficult to realize the temperature control of degree of precision.The current temperature-controlled precision of China bring up to 0.2 ℃ more difficult.Therefore, for the satellite with accurate temperature requirements, proposed a kind of thermal controls apparatus and heat control method, by this thermal controls apparatus and thermal control method, can realize satellite high-precision temperature control and be better than 0.1 ℃ of temperature control requirement.
Summary of the invention
The object of the invention is in order to overcome the deficiencies in the prior art, a kind of thermal controls apparatus and thermal control method that improves satellite temperature-controlled precision proposed, this thermal controls apparatus and thermal control method have solved the high accuracy temperature control problem that adopts traditional thermal control method to realize, improve satellite temperature-controlled precision, for needing precise temperature control loading device to apply and lay a good foundation on satellite.
The object of the invention is to be achieved through the following technical solutions.
A kind of thermal controls apparatus that improves satellite temperature-controlled precision of the present invention, this thermal controls apparatus comprises heating plate, heat insulating mattress, rectangular parallelepiped and heat-barrier material; The bottom surface of rectangular parallelepiped is as equipment mounting base, and five face integral body of other of rectangular parallelepiped are as temp. controlling box;
Described temp. controlling box adopts the thick aluminium alloy plate of 2mm;
Described equipment mounting base adopts the thick aluminium sheet of 3mm;
Described heat insulating mattress adopts the fiberglass that 5mm is thick, diameter is 10mm;
Described heating plate adopts band high accuracy temperature control pid algorithm to heat;
Equipment mounting base on this attemperating unit is bolted on satellite structure plate, thereby this attemperating unit is fixed on satellite structure plate; Between equipment mounting base and satellite structure plate, there is heat insulating mattress;
Heating plate sticks on the lower surface of equipment mounting base;
The equipment for the treatment of temperature control is placed in rectangular parallelepiped, is positioned on equipment mounting base, temp. controlling box;
Equipment mounting base and treat there is heat insulating mattress between the equipment of temperature control;
On temp. controlling box outside surface, be coated with the heat-barrier material of 10 unit; Every unit heat-barrier material comprises the two-sided aluminizer of one deck and one deck terylene net;
The equipment for the treatment of temperature control refers to that temperature-controlled precision requires to reach 0.1 ℃ and above equipment.
A kind of thermal control method that improves satellite temperature-controlled precision of the present invention, the method is according to satellite orbit, attitude and high-precision temperature index request, Satellite Thermal Design adopts subregion classification thermal control method, according to the thermal control index of each parts on satellite, thermal control region is divided into core thermal control district, transition thermal control district and three, peripheral thermal control district part: require equipment the highest, that operating temperature range is narrow to be placed in core thermal control district temperature stability; Temperature stability is required generally, and the wide equipment of operating temperature range is placed in transition thermal control district; And lower to the stability requirement of temperature, the wider equipment of operating temperature range is placed in peripheral thermal control district; Between each thermal control region, by cellular board or heat-barrier material, undertaken heat insulationly, and independent temperature control, reduces influencing each other between each region;
In core thermal control, district is provided with above-mentioned thermal controls apparatus, and between core thermal control district and transition thermal control district, structural slab is connected via satellite;
Each subregion, according to different thermal control index requests, takes different thermal control measures.Thermal control method by subregion classification is progressively controlled at the temperature of core space a stable scope like this, utilizes thermal controls apparatus of the present invention on this basis in core thermal control district, finally reaches the object of high accuracy temperature control.
0～30 ℃ of equipment requirement operating temperature range in described core thermal control district, temperature accuracy is better than 0.1 ℃, is sprayed with pitch-dark in equipment surface;
Equipment requirement operating temperature range-15～50 ℃ in described transition thermal control district, in equipment surface, be sprayed with pitch-dark, as need initiatively temperature control carry out active temperature control; And by active temperature control, make the temperature fluctuation of satellite structure plate in ± 1 ℃;
Equipment requirement operating temperature range-30～40 ℃ in described peripheral thermal control district, remove radiating surface in equipment surface and partly carry out insulated, as need active temperature control carries out active temperature control.
Beneficial effect
Thermal controls apparatus of the present invention and heat control method can be realized the 0.1 ℃ of high accuracy temperature control that is better than of high precision loading device, what adopt can be for needing the loading device of high accuracy temperature control that a highly stable boundary condition is provided based on classification thermal control design heat control method, for realizing high-precision temperature control, created the most important condition, and on this basis, utilize thermal controls apparatus of the present invention and possess the active temperature control technique of high accuracy temperature control algorithm in the utilization of high precision loading device mounting base, thereby reach the object of high accuracy temperature control; Therefore, the present invention is for needing the thermal control design of the satellite of precise temperature control loading device that a kind of thermal controls apparatus and heat control method are provided, for needing precise temperature control loading device to apply and lay a good foundation on satellite.
Accompanying drawing explanation
Fig. 1 is that thermal controls apparatus of the present invention forms schematic diagram;
Fig. 2 subregion thermal control of the present invention schematic diagram;
Fig. 3 is that vacuum environment verification experimental verification precision of the present invention is the result schematic diagram of 0.06 ℃;
Fig. 4 is the enlarged drawing of Fig. 3.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
Embodiment
The equipment 6 for the treatment of temperature control is sensing unit, and it is 0.1 ℃ that temperature accuracy requires:
As shown in Figure 1, this thermal controls apparatus comprises heating plate 2, heat insulating mattress, rectangular parallelepiped and heat-barrier material 5; The bottom surface of rectangular parallelepiped is as equipment mounting base 3, and five face integral body of other of rectangular parallelepiped are as temp. controlling box 4;
Described temp. controlling box 4 adopts the thick aluminium alloy plate of 2mm;
Described equipment mounting base 3 adopts the thick aluminium sheet of 3mm;
Described heat insulating mattress adopts the fiberglass that 5mm is thick, diameter is 10mm;
Described heating plate 2 adopts band high accuracy temperature control pid algorithm to heat;
Equipment mounting base 3 on this attemperating unit is bolted on satellite structure plate 1, thereby this attemperating unit is fixed on satellite structure plate 1; Between equipment mounting base 3 and satellite structure plate 1, there is heat insulating mattress;
Heating plate 2 sticks on the lower surface of equipment mounting base 3;
The equipment 6 for the treatment of temperature control is placed in rectangular parallelepiped, is positioned on equipment mounting base 3, temp. controlling box 4;
Equipment mounting base 3 and treat there is heat insulating mattress between the equipment 6 of temperature control;
On temp. controlling box 4 outside surfaces, be coated with the heat-barrier material 5 of 10 unit; Every unit heat-barrier material 5 comprises the two-sided aluminizer of one deck and one deck terylene net;
The temperature accuracy of controlling sensing unit is that 0.1 ℃, temperature range are that the method for 10 ℃-30 ℃ is:
(1) according to satellite equipment index situation, the index request of satellite equipment is as table 1.
Each equipment index requirement of table 1
(2) high precision loading device-sensing unit (SU) in table 1 is placed in thermal controls apparatus, then thermal controls apparatus is placed on to core thermal control district, the spraying of sensing unit (SU) outside surface is pitch-dark, and adopt Ф 10mm with equipment mounting base 3, the heat insulation installation of thick 5mm fiberglass, the aluminum alloy materials that in thermal controls apparatus, temp. controlling box 4 adopts, size is respectively: 4 side plate sizes of temp. controlling box are that 220mm * 230mm * 2mm, temp. controlling box 4 top boards sizes are that 220mm * 220mm * 2mm, equipment mounting base 3 sizes are 220mm * 220mm * 3mm; Between equipment mounting base 3 and satellite structure plate 1, adopt Ф 10, the heat insulation installation of thick 5mm fiberglass, to reduce the impact on temp. controlling box 4 temperature.The peripheral coated multilayer insulation material 5 of temp. controlling box 4, object is the impact of changes of heat flux on high precision loading device-sensing unit (SU) that prevents transition thermal control district, and paste 6 heating plates 2 at equipment mounting base 3, utilization possesses the active temperature control technique of high accuracy temperature control algorithm, equipment mounting base 3 is carried out to temperature control, make equipment mounting base 3 temperature-controlled precisions be better than 0.1 ℃, further guaranteeing needs among the environment of precise temperature control equipment in a stabilizer pole, from reaching the object of high accuracy temperature control.
High accuracy temperature control algorithm adopts fuzzy parameter self-setting PID arithmetic high accuracy temperature control algorithm initiatively to heat, and realizes high accuracy temperature control.
(3) by electronic package on table 1 culminant star, control and management unit, centralized control unit, S band number transmission transmitter, the working temperatures such as power-supply controller of electric are generally in-15 ℃～50 ℃, the equipment that operating temperature range is wider, be arranged on transition thermal control district, main thermal control measure is pitch-dark in equipment surface spraying, except radiating surface part, carry out insulated, initiatively temperature control design, simultaneously for a stable environment being provided to core thermal control district, the satellite structure plate 1 of temp. controlling box 4 is installed by active temperature control method, make the temperature fluctuation of this satellite structure plate 1 in ± 1 ℃.
(4) the stability requirement equipment lower, working temperature ratio-30～40 ℃ wide ranges of the digital sun in table 1 is quick, star sensor, antenna equitemperature is arranged on external zones, main thermal control measure is partly carried out heat insulation, coated multilayer insulation material 5, initiatively temperature control design for remove radiating surface in equipment surface.
By above-mentioned subregion grading design, zone of transition temperature is controlled in-15 ℃～50 ℃, local temperature fluctuation is controlled at ± 1 ℃ in, realize high accuracy temperature control equipment-sensing unit (SU) temperature-controlled precision and be better than 0.1 ℃.
Above-mentioned each equipment design point is carried out vacuum environment verification experimental verification after determining, experimental result as shown in Figure 3 and Figure 4, can be found out from experimental result, can realize the high accuracy temperature control design object that temperature-controlled precision is better than 0.1K.
The content not being described in detail in instructions of the present invention belongs to those skilled in the art's known technology.
Claims (10)
1. a thermal controls apparatus that improves satellite temperature-controlled precision, is characterized in that: this thermal controls apparatus comprises heating plate (2), heat insulating mattress, rectangular parallelepiped and heat-barrier material (5); The bottom surface of rectangular parallelepiped is as equipment mounting base (3), and five face integral body of other of rectangular parallelepiped are as temp. controlling box (4);
It is upper that equipment mounting base (3) on this attemperating unit is bolted on satellite structure plate (1), thereby this attemperating unit is fixed on satellite structure plate (1); Between equipment mounting base (3) and satellite structure plate (1), there is heat insulating mattress;
Heating plate (2) sticks on the lower surface of equipment mounting base (3);
The equipment for the treatment of temperature control is placed in rectangular parallelepiped, is positioned at that equipment mounting base (3) is upper, temp. controlling box (4);
Equipment mounting base (3) and treat there is heat insulating mattress between the equipment of temperature control;
On temp. controlling box (4) outside surface, be coated with heat-barrier material (5).
2. a kind of thermal controls apparatus that improves satellite temperature-controlled precision according to claim 1, is characterized in that: described temp. controlling box (4) adopts the thick aluminium alloy plate of 2mm.
3. a kind of thermal controls apparatus that improves satellite temperature-controlled precision according to claim 1, is characterized in that: described equipment mounting base (3) adopts the thick aluminium sheet of 3mm.
4. a kind of thermal controls apparatus that improves satellite temperature-controlled precision according to claim 1, is characterized in that: described heat insulating mattress adopts the fiberglass that 5mm is thick, diameter is 10mm.
5. a kind of thermal controls apparatus that improves satellite temperature-controlled precision according to claim 1, is characterized in that: described heating plate (2) adopts band high accuracy temperature control pid algorithm to heat.
6. a kind of thermal controls apparatus that improves satellite temperature-controlled precision according to claim 1, is characterized in that: the heat-barrier material (5) that is coated with 10 unit on temp. controlling box (4) outside surface; Every unit heat-barrier material (5) comprises the two-sided aluminizer of one deck and one deck terylene net.
7. a kind of thermal controls apparatus that improves satellite temperature-controlled precision according to claim 1, is characterized in that: the equipment for the treatment of temperature control refers to that temperature-controlled precision requires to reach 0.1 ℃ of above equipment.
8. a thermal control method that improves satellite temperature-controlled precision, it is characterized in that: the method is according to satellite orbit, attitude and high-precision temperature index request, Satellite Thermal Design adopts subregion classification thermal control method, according to the thermal control index of each parts on satellite, thermal control region is divided into core thermal control district, transition thermal control district and three, peripheral thermal control district part: require equipment the highest, that operating temperature range is narrow to be placed in core thermal control district temperature stability; Temperature stability is required generally, and the wide equipment of operating temperature range is placed in transition thermal control district; And lower to the stability requirement of temperature, the wider equipment of operating temperature range is placed in peripheral thermal control district; Between each thermal control region, by cellular board or heat-barrier material, undertaken heat insulation, and independent temperature control;
In core thermal control, district is provided with above-mentioned thermal controls apparatus, and between core thermal control district and transition thermal control district, structural slab (1) carries out heat insulation connection via satellite.
9. a kind of thermal control method that improves satellite temperature-controlled precision according to claim 8, is characterized in that: 0～30 ℃ of the equipment requirement operating temperature range in described core thermal control district, and temperature accuracy is better than 0.1 ℃, is sprayed with pitch-dark in equipment surface; And at equipment mounting base (3) sticking heating plates (2), utilize the active temperature control technique that possesses high accuracy temperature control algorithm, and equipment mounting base (3) is carried out to temperature control, make equipment mounting base (3) temperature-controlled precision be better than 0.1 ℃.
10. a kind of thermal control method that improves satellite temperature-controlled precision according to claim 8, it is characterized in that: equipment requirement operating temperature range-15～50 ℃ in described transition thermal control district, in equipment surface, be sprayed with pitch-dark, as need initiatively temperature control carry out active temperature control; And make the temperature fluctuation of satellite structure plate (1) in ± 1 ℃ by active temperature control; Equipment requirement operating temperature range-30～40 ℃ in described peripheral thermal control district, remove radiating surface in equipment surface and partly carry out insulated, as need active temperature control carries out active temperature control.
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Cited By (8)
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| CN104536465A (en) * | 2014-12-17 | 2015-04-22 | 中国科学院长春光学精密机械与物理研究所 | Unfolded type double-freedom-degree radiation radiator for space optical remote sensor |
| CN105183040A (en) * | 2015-08-07 | 2015-12-23 | 航天东方红卫星有限公司 | Small-satellite thermal control subsystem on-orbit fault recurrence forecast method |
| CN108408681A (en) * | 2017-12-12 | 2018-08-17 | 北京航天控制仪器研究所 | A kind of insulation construction for MEMS inertial measurement combination temperature controls |
| CN108682890A (en) * | 2018-03-29 | 2018-10-19 | 上海宇航系统工程研究所 | A kind of Li-ion batteries piles mounting device having thermal control function |
| CN108860664A (en) * | 2018-06-20 | 2018-11-23 | 上海卫星工程研究所 | The novel thermal controls apparatus of spatial flexible mechanism |
| CN111966145A (en) * | 2020-07-01 | 2020-11-20 | 北京卫星制造厂有限公司 | High-precision in-plane temperature control system in vacuum environment |
| CN113237681A (en) * | 2021-04-26 | 2021-08-10 | 北京卫星环境工程研究所 | Vacuum thermal test spacecraft levelness measuring device |
| CN118632394A (en) * | 2024-08-09 | 2024-09-10 | 长光卫星技术股份有限公司 | Thermal control design method for xenon working medium Hall electric propulsion storage and supply system |
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Cited By (13)
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| CN104536465A (en) * | 2014-12-17 | 2015-04-22 | 中国科学院长春光学精密机械与物理研究所 | Unfolded type double-freedom-degree radiation radiator for space optical remote sensor |
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| CN108408681A (en) * | 2017-12-12 | 2018-08-17 | 北京航天控制仪器研究所 | A kind of insulation construction for MEMS inertial measurement combination temperature controls |
| CN108682890B (en) * | 2018-03-29 | 2020-11-24 | 上海宇航系统工程研究所 | Lithium ion battery pack installation device with thermal control function |
| CN108682890A (en) * | 2018-03-29 | 2018-10-19 | 上海宇航系统工程研究所 | A kind of Li-ion batteries piles mounting device having thermal control function |
| CN108860664A (en) * | 2018-06-20 | 2018-11-23 | 上海卫星工程研究所 | The novel thermal controls apparatus of spatial flexible mechanism |
| CN108860664B (en) * | 2018-06-20 | 2020-07-14 | 上海卫星工程研究所 | Novel thermal control device for space flexible mechanism |
| CN111966145A (en) * | 2020-07-01 | 2020-11-20 | 北京卫星制造厂有限公司 | High-precision in-plane temperature control system in vacuum environment |
| CN111966145B (en) * | 2020-07-01 | 2021-06-11 | 北京卫星制造厂有限公司 | High-precision in-plane temperature control system in vacuum environment |
| CN113237681A (en) * | 2021-04-26 | 2021-08-10 | 北京卫星环境工程研究所 | Vacuum thermal test spacecraft levelness measuring device |
| CN118632394A (en) * | 2024-08-09 | 2024-09-10 | 长光卫星技术股份有限公司 | Thermal control design method for xenon working medium Hall electric propulsion storage and supply system |
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