CN104102245B - A kind of thermal controls apparatus and thermal control method improving satellite temperature-controlled precision - Google Patents
A kind of thermal controls apparatus and thermal control method improving satellite temperature-controlled precision Download PDFInfo
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- CN104102245B CN104102245B CN201410225367.3A CN201410225367A CN104102245B CN 104102245 B CN104102245 B CN 104102245B CN 201410225367 A CN201410225367 A CN 201410225367A CN 104102245 B CN104102245 B CN 104102245B
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Abstract
The present invention relates to a kind of thermal controls apparatus and the thermal control method that improve satellite temperature-controlled precision, be particularly useful for satellite high accuracy temperature control being had to demand, belong to satellite temperature control technology field.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 other five faces of rectangular parallelepiped are overall as temp. controlling box.What thermal controls apparatus of the present invention and heat control method can realize high precision loading device is better than 0.1 DEG C of high accuracy temperature control, what adopt can provide a highly stable boundary condition for needing the loading device of high accuracy temperature control based on classification thermal control design heat control method, the most important condition is created for realizing high accuracy temperature control, and on this basis, utilize thermal controls apparatus of the present invention and utilize the active temperature control technology possessing high accuracy temperature control algorithm at high precision loading device mounting base, thus reaching the object of high accuracy temperature control.
Description
Technical field
The present invention relates to a kind of thermal controls apparatus and the thermal control method that improve satellite temperature-controlled precision, be particularly useful for satellite high accuracy temperature control being had to 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 requirements of crucial load to temperature control precision such as high-precision star clock, precision optical system and accurate inertial navigation gyro are more and more higher, require also more and more stricter to temperature stability, temperature-controlled precision requires to reach milli K level, even higher requirement.At present, abroad at solution high accuracy temperature control technical elements, have employed a lot of method, adopt at hardware aspect the heat control material thermal control measure that loop circuit heat pipe etc. is new, in software, external precision temperature control generally adopts intelligent independent control method, by intelligent control methods such as self-adaptation, fuzzy control, neural networks, design has robustness and intelligent control algolithm, by the temperature point comprehensive descision of zones of different, reach the optimum control of temperature, realize high accuracy temperature control; Domestic heat control strategy traditional at present generally adopts simple temperature feedback control method, it adopts the temperature sensor responsively element being covered in instrument surface, adopt method of controlling switch, there is the advantages such as reliability is high, control is simple, fast response time, but because FEEDBACK CONTROL means are fairly simple, the temperature being difficult to realize degree of precision controls.The current temperature-controlled precision of China bring up to 0.2 DEG C more difficult.Therefore, for the satellite with accurate temperature requirements, propose a kind of thermal controls apparatus and heat control method, satellite high-precision temperature control can be realized by this thermal controls apparatus and thermal control method and be better than 0.1 DEG C of temperature control requirement.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of thermal controls apparatus and the thermal control method that improve satellite temperature-controlled precision are proposed, this thermal controls apparatus and thermal control method solve the high accuracy temperature control problem adopting traditional thermal control method to realize, improve satellite temperature-controlled precision, apply on satellite for needing precise temperature control loading device and lay a good foundation.
The object of the invention is to be achieved through the following technical solutions.
A kind of thermal controls apparatus improving 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 other five faces of rectangular parallelepiped are overall as temp. controlling box;
Described temp. controlling box adopts the aluminium alloy plate that 2mm is thick;
Described equipment mounting base adopts the aluminium sheet that 3mm is thick;
Described heat insulating mattress employing 5mm is thick, diameter is the fiberglass of 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, thus is fixed on satellite structure plate by this attemperating unit; Heat insulating mattress is had between equipment mounting base and satellite structure plate;
Heating plate is pasted onto on the lower surface of equipment mounting base;
Treat that the equipment of temperature control is placed in rectangular parallelepiped, be namely positioned on equipment mounting base, temp. controlling box;
Heat insulating mattress is had between equipment mounting base and the equipment treating temperature control;
Temp. controlling box outside surface is 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;
Treat that the equipment of temperature control refers to that temperature-controlled precision requires to reach 0.1 DEG C and above equipment.
A kind of thermal control method improving 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 degree and zoning thermal control method, namely according to the thermal control index of parts each on satellite, thermal control region is divided into core thermal control district, transition thermal control district and three, peripheral thermal control district part: temperature stability is required that the highest, that operating temperature range is narrow equipment is placed in core thermal control district; Temperature stability requirement generally, the equipment that operating temperature range is wide 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; Undertaken heat insulation by cellular board or heat-barrier material between each thermal control region, and independent temperature control, reduce influencing each other between each region;
In core thermal control, district is provided with above-mentioned thermal controls apparatus, is connected between core thermal control district with transition thermal control district by satellite structure plate;
Each subregion, according to different thermal control index request, takes different thermal control measures.Progressively the temperature of core space is controlled a stable scope by the thermal control method of degree and zoning like this, utilize thermal controls apparatus of the present invention in core thermal control district on this basis, finally reach the object of high accuracy temperature control.
Equipment requirement operating temperature range 0 ~ 30 DEG C in described core thermal control district, temperature accuracy is better than 0.1 DEG C, is sprayed with pitch-dark in equipment surface;
Equipment requirement operating temperature range-15 ~ 50 DEG C in described transition thermal control district, is sprayed with pitch-dark in equipment surface, then carry out active temperature control as needed active temperature control; And make the temperature fluctuation of satellite structure plate within ± 1 DEG C by active temperature control;
Equipment requirement operating temperature range-30 ~ 40 DEG C in described peripheral thermal control district, in equipment surface except radiating surface part carries out insulated, then carries out active temperature control as needed active temperature control.
Beneficial effect
What thermal controls apparatus of the present invention and heat control method can realize high precision loading device is better than 0.1 DEG C of high accuracy temperature control, what adopt can provide a highly stable boundary condition for needing the loading device of high accuracy temperature control based on classification thermal control design heat control method, the most important condition is created for realizing high accuracy temperature control, and on this basis, utilize thermal controls apparatus of the present invention and utilize the active temperature control technology possessing high accuracy temperature control algorithm at high precision loading device mounting base, thus reaching the object of high accuracy temperature control; Therefore, the thermal control design that the present invention is the satellite needing precise temperature control loading device provides a kind of thermal controls apparatus and heat control method, applies lay a good foundation for needing precise temperature control loading device on satellite.
Accompanying drawing explanation
Fig. 1 is thermal controls apparatus of the present invention composition schematic diagram;
Fig. 2 subregion thermal control of the present invention schematic diagram;
Fig. 3 to be vacuum environment verification experimental verification precision of the present invention be result schematic diagram of 0.06 DEG C;
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
Treat that the equipment 6 of temperature control is sensing unit, it is 0.1 DEG C 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 other five faces of rectangular parallelepiped are overall as temp. controlling box 4;
The aluminium alloy plate that described temp. controlling box 4 adopts 2mm thick;
The aluminium sheet that described equipment mounting base 3 adopts 3mm thick;
Described heat insulating mattress employing 5mm is thick, diameter is the fiberglass of 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, thus is fixed on satellite structure plate 1 by this attemperating unit; Heat insulating mattress is had between equipment mounting base 3 and satellite structure plate 1;
Heating plate 2 is pasted onto on the lower surface of equipment mounting base 3;
Treat that the equipment 6 of temperature control is placed in rectangular parallelepiped, be namely positioned on equipment mounting base 3, temp. controlling box 4;
Heat insulating mattress is had between equipment mounting base 3 and the equipment 6 treating temperature control;
Temp. controlling box 4 outside surface is 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 method that the temperature accuracy controlling sensing unit is 0.1 DEG C, temperature range is 10 DEG C-30 DEG C is:
(1) according to satellite equipment index situation, the index request of satellite equipment is as table 1.
The 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 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: temp. controlling box 4 pieces of side plate sizes are 220mm × 230mm × 2mm, temp. controlling box 4 top board size is 220mm × 220mm × 2mm, equipment mounting base 3 size is 220mm × 220mm × 3mm; Adopt Ф 10 between equipment mounting base 3 and satellite structure plate 1, 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 prevents the changes of heat flux in transition thermal control district on the impact of high precision loading device-sensing unit (SU), and paste 6 heating plates 2 at equipment mounting base 3, utilize the active temperature control technology possessing high accuracy temperature control algorithm, temperature control is carried out to equipment mounting base 3, equipment mounting base 3 temperature-controlled precision is made to be better than 0.1 DEG C, further guarantee needs precise temperature control equipment to be among the environment of a stabilizer pole, from reaching the object of high accuracy temperature control.
High accuracy temperature control algorithm adopts fuzzy parameters self-turning pid algorithm high accuracy temperature control algorithm active heated, 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 within-15 DEG C ~ 50 DEG C, 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, insulated is carried out except radiating surface part, active temperature control designs, simultaneously in order to provide a stable environment 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 within ± 1 DEG C.
(4) lower for the stability requirement of quick for the sun digital in table 1, star sensor, antenna equitemperature, working temperature are arranged on external zones than the equipment of-30 ~ 40 DEG C of wide ranges, main thermal control measure carries out heat insulation, coated multilayer insulation material 5 for removing radiating surface part in equipment surface, and active temperature control designs.
Designed by above-mentioned degree and zoning, make zone of transition temperature control within-15 DEG C ~ 50 DEG C, local temperature fluctuations controls within ± 1 DEG C, realizes high accuracy temperature control equipment-sensing unit (SU) temperature-controlled precision and is better than 0.1 DEG C.
Above-mentioned each equipment de-sign state carries out vacuum environment verification experimental verification after determining, experimental result as shown in Figure 3 and Figure 4, as can be seen from experimental result, can realize the high accuracy temperature control design object that temperature-controlled precision is better than 0.1K.
The content be not described in detail in instructions of the present invention belongs to the known technology of those skilled in the art.
Claims (10)
1. improve a thermal control method for satellite temperature-controlled precision, the thermal controls apparatus that this thermal control method uses 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 other five faces of rectangular parallelepiped are overall as temp. controlling box (4);
Equipment mounting base (3) on this attemperating unit is bolted on satellite structure plate (1), thus is fixed on by this attemperating unit on satellite structure plate (1); Heat insulating mattress is had between equipment mounting base (3) and satellite structure plate (1);
Heating plate (2) is pasted onto on the lower surface of equipment mounting base (3);
Treat that the equipment of temperature control is placed in rectangular parallelepiped, be namely positioned at that equipment mounting base (3) is upper, temp. controlling box (4);
Heat insulating mattress is had between equipment mounting base (3) and the equipment treating temperature control;
Temp. controlling box (4) outside surface is coated with heat-barrier material (5);
It is characterized in that: the method is according to satellite orbit, attitude and high-precision temperature index request, Satellite Thermal Design adopts degree and zoning thermal control method, namely according to the thermal control index of parts each on satellite, thermal control region is divided into core thermal control district, transition thermal control district and three, peripheral thermal control district part: temperature stability is required that the highest, that operating temperature range is narrow equipment is placed in core thermal control district; Temperature stability requirement generally, the equipment that operating temperature range is wide 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; Undertaken heat insulation by heat-barrier material between each thermal control region, and independent temperature control;
In core thermal control, district is provided with above-mentioned thermal controls apparatus, carries out heat insulation connection between core thermal control district with transition thermal control district by satellite structure plate (1).
2. a kind of thermal control method improving satellite temperature-controlled precision according to claim 1, is characterized in that: the equipment requirement operating temperature range 0 ~ 30 DEG C in described core thermal control district, and temperature accuracy is better than 0.1 DEG C, is sprayed with pitch-dark in equipment surface; And at equipment mounting base (3) sticking heating plates (2), utilize the active temperature control technology possessing high accuracy temperature control algorithm, temperature control is carried out to equipment mounting base (3), makes equipment mounting base (3) temperature-controlled precision be better than 0.1 DEG C.
3. a kind of thermal control method improving satellite temperature-controlled precision according to claim 1, it is characterized in that: the equipment requirement operating temperature range-15 ~ 50 DEG C in described transition thermal control district, being sprayed with in equipment surface pitch-dark, then carrying out active temperature control as needed active temperature control; And make the temperature fluctuation of satellite structure plate (1) within ± 1 DEG C by active temperature control; Equipment requirement operating temperature range-30 ~ 40 DEG C in described peripheral thermal control district, in equipment surface except radiating surface part carries out insulated, then carries out active temperature control as needed active temperature control.
4. a kind of thermal control method improving satellite temperature-controlled precision according to claim 1, is characterized in that: described heat-barrier material is cellular board.
5. a kind of thermal control method improving satellite temperature-controlled precision according to claim 1, is characterized in that: described temp. controlling box (4) adopts the aluminium alloy plate that 2mm is thick.
6. a kind of thermal control method improving satellite temperature-controlled precision according to claim 1, is characterized in that: described equipment mounting base (3) adopts the aluminium sheet that 3mm is thick.
7. a kind of thermal control method improving satellite temperature-controlled precision according to claim 1, is characterized in that: described heat insulating mattress employing 5mm is thick, diameter is the fiberglass of 10mm.
8. a kind of thermal control method improving 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.
9. a kind of thermal control method improving satellite temperature-controlled precision according to claim 1, is characterized in that: the heat-barrier material (5) temp. controlling box (4) outside surface being coated with 10 unit; Every unit heat-barrier material (5) comprises the two-sided aluminizer of one deck and one deck terylene net.
10. a kind of thermal control method improving satellite temperature-controlled precision according to claim 1, is characterized in that: treat that the equipment of temperature control refers to that temperature-controlled precision requires to reach the equipment of more than 0.1 DEG C.
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