CN107168349A - Big satellite control system of the bandwidth without momenttum wheel of high accuracy based on magnetic buoyancy device - Google Patents
Big satellite control system of the bandwidth without momenttum wheel of high accuracy based on magnetic buoyancy device Download PDFInfo
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- CN107168349A CN107168349A CN201710354264.0A CN201710354264A CN107168349A CN 107168349 A CN107168349 A CN 107168349A CN 201710354264 A CN201710354264 A CN 201710354264A CN 107168349 A CN107168349 A CN 107168349A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/24—Guiding or controlling apparatus, e.g. for attitude control
- B64G1/244—Spacecraft control systems
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- Aviation & Aerospace Engineering (AREA)
- Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
Abstract
The invention discloses a kind of big satellite control system of the bandwidth without momenttum wheel of the high accuracy based on magnetic buoyancy device, it includes unblock locking device, attitude command generator, quiet cabin attitude transducer, quiet cabin attitude controller, magnetic buoyancy device executing agency, dynamic cabin relative position sensor, uneoupled control device, dynamic cabin relative position controller, dynamic cabin relative Attitude Control for Spacecraft device, Dong Cang executing agencies.The present invention by satellite platform using magnetic buoyancy device due to being separated into dynamic cabin and quiet cabin two parts, and two cabins are employed with different control executing agencies, the high-precision attitude stable control of sound separate type satellite platform can be solved, simultaneously because without using momenttum wheel, the cost of control system can be greatly reduced, lifetime of system and reliability is improved.
Description
Technical field
The present invention relates to a kind of satellite control system, more particularly to a kind of big bandwidth of high accuracy based on magnetic buoyancy device without
The satellite control system of momenttum wheel.
Background technology
Break traditions satellite load and platform of sound separate type satellite platform is connected mentality of designing, using based on magnetic buoyancy device
" sound isolation noncontact, principal and subordinate's decoupling high accuracy " brand-new design method, breaking through the design method that is connected, to there is micro-vibration " difficult
Survey, difficult control " technical bottleneck, can fundamentally solve the great difficult problem that load pointing accuracy and stability are difficult to be substantially improved.And
And because whole control system does not use the momenttum wheels such as flywheel, control-moment gyro as executing agency, realizing that load is high
Satellite platform cost can be greatly lowered while precision high stability Con trolling index, life and reliability is improved.
Sound separate type satellite platform is due to being isolated dynamic cabin and quiet cabin using magnetic buoyancy device, and its control system is set
Meter is compared to conventional satellite platform in executing agency with being very different on control strategy and system cost is higher.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of big bandwidth of the high accuracy based on magnetic buoyancy device without momenttum wheel
Satellite control system, it can ensure that platform is in-orbit for the requirement beyond target double to load of sound separate type satellite platform
The stable state control of posture and maneuver autopilot.
The present invention is to solve above-mentioned technical problem by following technical proposals：A kind of high accuracy based on magnetic buoyancy device
Big satellite control system of the bandwidth without momenttum wheel, it is characterised in that it include attitude command generator, quiet cabin attitude transducer,
Quiet cabin attitude controller, dynamic cabin relative position sensor, uneoupled control device, dynamic cabin relative position controller, dynamic cabin are with respect to appearance
State controller, Dong Cang executing agencies；When the quiet cabin of sound separate type satellite platform is separated with the unblock of dynamic cabin, attitude command occurs
Device sends attitude command to quiet cabin attitude controller, dynamic cabin relative Attitude Control for Spacecraft device, dynamic cabin relative position controller respectively；Quiet cabin
The quiet cabin attitude information that attitude controller is obtained according to attitude command and quiet cabin attitude transducer measurement, exports quiet cabin posture control
System instruction；The quiet cabin that dynamic cabin relative position controller is obtained according to attitude command and dynamic cabin relative position sensor measurement is with moving
Cabin relative position information, exports quiet cabin and dynamic cabin relative position control instruction；Uneoupled control device refers to according to quiet cabin gesture stability
Make, quiet cabin and dynamic cabin relative position control instruction, form magnetic buoyancy device attitude control power and magnetic buoyancy device position control power, and to attitude control power with
Position control power decoupling；Wherein, magnetic buoyancy device attitude control power puts on quiet cabin and realization is to the active control of quiet cabin posture, magnetic buoyancy device position
Control power acts on quiet cabin and dynamic cabin, realizes to moving the driven control that freight space is put；Dynamic cabin relative Attitude Control for Spacecraft device is according to attitude command
And the obtained quiet cabin of dynamic cabin relative position sensor measurement and dynamic cabin relative position information, the driven control of posture is carried out to moving cabin
System, the overall Adaptive Attitude that the Dong Cang executing agencies complete quiet cabin and dynamic cabin is controlled.
Preferably, cabin is moved using chemical thrust in the quiet cabin using magnetic buoyancy device as posture active control executing agency
Device, electric thruster, magnetic torquer move the relative position between cabin and quiet cabin and keep using as the driven control executing agency of posture
Magnetic buoyancy device is used as executing agency.
Preferably, the magnetic buoyancy device attitude control power belongs to the controling power of magnetic buoyancy device with magnetic buoyancy device position control power, described
The Lorentz force that magnetic buoyancy device moves generation by adjustable current coil in uniform magnetic field is controlled.
Preferably, in-orbit lock of the dynamic cabin relative Attitude Control for Spacecraft device in the quiet cabin of sound separate type satellite platform and dynamic cabin
Tight process adaptive adjustment gesture stability parameter.
The positive effect of the present invention is：Present invention could apply to the quiet cabin of sound separate type satellite platform and dynamic cabin
Gesture stability, make the quiet cabin and dynamic cabin of sound separate type satellite platform unlock and lock in two cabins during gesture stability it is steady
Fixed, it is out of control not occur the attitude of satellite, while ensureing that quiet cabin is pointed to high stability in high precision, is not sent out between quiet cabin and dynamic cabin
Raw collision.Sound separate type satellite platform can realize that load pointing accuracy, stability are up to 10 respectively-4Degree, 10-6Pair of degrees second
Hypervisor, while having the characteristics of high bandwidth is inexpensive.
Brief description of the drawings
Fig. 1 is schematic diagram of the invention.
Embodiment
Sound separate type satellite platform is mainly made up of quiet cabin and dynamic cabin, be provided with quiet cabin optical fibre gyro, payload,
Be provided with the peace and quiet part such as star sensor, magnetic buoyancy device stator, dynamic cabin solar array and its drive mechanism, chemical thruster,
The movable parts such as electric thruster, magnetic torquer, tank, antenna, magnetic buoyancy device mover.Connect between quiet cabin and this two cabin of dynamic cabin by non-
Touch magnetic buoyancy device and realize that sound is isolated.
Present pre-ferred embodiments are provided below in conjunction with the accompanying drawings, to describe technical scheme in detail.
The present invention includes attitude command for satellite control system of the big bandwidth of high accuracy without momenttum wheel based on magnetic buoyancy device
Generator, quiet cabin attitude transducer, quiet cabin attitude controller, dynamic cabin relative position sensor, uneoupled control device, dynamic cabin are relative
Positioner, dynamic cabin relative Attitude Control for Spacecraft device, Dong Cang executing agencies；When the quiet cabin of sound separate type satellite platform is solved with dynamic cabin
During lock separation, attitude command generator is respectively to quiet cabin attitude controller, dynamic cabin relative Attitude Control for Spacecraft device, dynamic cabin relative position control
Device processed sends attitude command；The quiet cabin appearance that quiet cabin attitude controller is obtained according to attitude command and quiet cabin attitude transducer measurement
State information, exports quiet cabin gesture stability instruction；Dynamic cabin relative position controller is passed according to attitude command and dynamic cabin relative position
The quiet cabin that sensor measurement is obtained and dynamic cabin relative position information, export quiet cabin and dynamic cabin relative position control instruction；Uneoupled control
Device is instructed according to quiet cabin gesture stability, quiet cabin and dynamic cabin relative position control instruction, is formed magnetic buoyancy device attitude control power and is floated with magnetic
Power device position control power, and to attitude control power and position control power decoupling；Wherein, magnetic buoyancy device attitude control power puts on quiet cabin and realized to quiet cabin appearance
The active control of state, magnetic buoyancy device position control power acts on quiet cabin and dynamic cabin, realizes to moving the driven control that freight space is put；Dynamic cabin is relative
Quiet cabin and dynamic cabin relative position information that attitude controller is obtained according to attitude command and dynamic cabin relative position sensor measurement,
The driven control of posture is carried out to moving cabin, the Dong Cang executing agencies complete the overall Adaptive Attitude control in quiet cabin and dynamic cabin
System.
Cabin is moved using chemical thrust in quiet cabin using magnetic buoyancy device as posture active control executing agency in the system
Device, electric thruster, magnetic torquer move the relative position between cabin and quiet cabin and keep using as the driven control executing agency of posture
Magnetic buoyancy device can so realize the active control to quiet cabin posture as executing agency.
In-orbit locking process of the dynamic cabin relative Attitude Control for Spacecraft device in the quiet cabin of sound separate type satellite platform and dynamic cabin
Adaptive adjustment gesture stability parameter, the overall Adaptive Attitude that the Dong Cang executing agencies complete quiet cabin and dynamic cabin is controlled,
The driven control to moving cabin posture can so be realized.
The system payload is located at the quiet cabin of satellite platform, and quiet cabin part is free of movable part and big flexible part,
The Lorentz force that magnetic buoyancy device moves generation by adjustable current coil in uniform magnetic field is controlled, and can so be realized pair
The high-precision high bandwidth control in quiet cabin.
The movable part of the system platform and big flexible part are located at dynamic cabin, can so be pushed away using chemical thruster, electricity
Power device, magnetic torquer as the driven control in dynamic cabin executing agency.
The in-orbit stable state over the ground control of the system-satellite platform is made using chemical thruster, electric thruster, magnetic torquer
For executing agency, rapid attitude maneuver control, as executing agency, so can guarantee that the control to moving cabin using chemical thruster
Bandwidth matches with magnetic buoyancy device to the control bandwidth in quiet cabin.
When the quiet cabin of sound separate type satellite platform is with the in-orbit locking in dynamic cabin, moving cabin relative Attitude Control for Spacecraft device can be according to whole
The overall attitude information in quiet cabin that body attitude transducer measurement is obtained and dynamic cabin, adaptively adjusts control parameter, to quiet cabin with
The overall of dynamic cabin carries out gesture stability.
The adaptation function of dynamic cabin relative Attitude Control for Spacecraft device is to refer to the matter in dock configuration or internal configuration
During the heart and inertia change, the parameter of adaptive adjustment controller.The dock configuration, refers to：Sound separate type satellite
The quiet cabin of platform and dynamic cabin not common centroid, quiet cabin with dynamic cabin during unblock and locking, sound separate type satellite platform barycenter
Changed with rotary inertia.The internal configuration, refers to：The quiet cabin of sound separate type satellite platform and dynamic cabin symplasm
The heart, quiet cabin is with dynamic cabin during unblock and locking, and sound separate type satellite platform being basically unchanged of barycenter, rotary inertia occurs
Change.
Specifically, after sound separate type satellite platform is entered the orbit, in order to realize double hyper modes in quiet cabin, two cabin locking devices
Unblock, the separation of two cabins, two cabin control models be quiet cabin actively, move the driven control model in cabin, during this, move cabin by initial
Whole star control mode switch follow the pattern in quiet cabin to only control retro module, gesture stability is carried out to this process, to realize quiet cabin
The rapid convergence of posture and double hypervisors；The in-orbit releasing process for repeating locking unblock is consistent with initial releasing process, in-orbit lock
Then in contrast, in this process, the driven control mode switch in cabin is moved to whole star control in quiet cabin and dynamic cabin to tight process by the active of quiet cabin
Molding formula, gesture stability is carried out to this process, to realize double super whole star pose stabilization controls of platform.The switching of both of which
Journey, is related to the change of barycenter and inertia, and controller parameter is adaptively adjusted.
The gesture stability of sound separate type satellite platform is main by attitude command generator 101, quiet cabin posture active control
Loop 102, the dynamic driven control loop 103 of cabin posture and dynamic freight space are put driven control loop 104 and constituted；Quiet cabin posture is actively controlled
The posture that loop 102 processed is used for when dynamic cabin is unlocked with quiet cabin to quiet cabin is controlled.
Repeated after sound separate type satellite platform is entered the orbit, and after in-orbit locking after unlocking, quiet cabin is separated with the unblock of dynamic cabin,
Attitude command generator 101 to quiet cabin posture active control loops 102, the dynamic driven control loop 103 of cabin posture and is moved respectively
Freight space puts driven control loop 104 and sends corresponding attitude command.Quiet cabin attitude controller is according to attitude command and quiet cabin appearance
The attitude information of state sensor measurement, the relative position information that relative position controller is measured according to relative position sensor leads to
Cross decoupling distribution formation magnetic buoyancy device attitude control power and control power with position, be respectively completed quiet cabin posture active control and dynamic freight space puts driven
Control.
The present invention can solve the problems, such as the pose stabilization control in the cabin of sound separate type satellite platform two, it is ensured that sound separate type
The in-orbit normal work of satellite platform, realizes quiet cabin high accuracy and high stability performance indications.
Particular embodiments described above, technical problem, technical scheme and beneficial effect to the solution of the present invention are carried out
It is further described, should be understood that the specific embodiment that the foregoing is only of the invention, be not limited to
The present invention, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc. should be included in this
Within the protection domain of invention.
Claims (4)
1. big satellite control system of the bandwidth without momenttum wheel of a kind of high accuracy based on magnetic buoyancy device, it is characterised in that it includes
Attitude command generator, quiet cabin attitude transducer, quiet cabin attitude controller, dynamic cabin relative position sensor, uneoupled control device,
Dynamic cabin relative position controller, dynamic cabin relative Attitude Control for Spacecraft device, Dong Cang executing agencies；When the quiet cabin of sound separate type satellite platform
When being separated with the unblock of dynamic cabin, attitude command generator is respectively to quiet cabin attitude controller, dynamic cabin relative Attitude Control for Spacecraft device, dynamic cabin phase
Attitude command is sent to positioner；Quiet cabin attitude controller is obtained according to attitude command and quiet cabin attitude transducer measurement
Quiet cabin attitude information, export the instruction of quiet cabin gesture stability；Dynamic cabin relative position controller is according to attitude command and dynamic cabin phase
The quiet cabin obtained to position sensor measurement and dynamic cabin relative position information, export quiet cabin and dynamic cabin relative position control instruction；
Uneoupled control device is instructed according to quiet cabin gesture stability, quiet cabin and dynamic cabin relative position control instruction, forms magnetic buoyancy device attitude control
Power and magnetic buoyancy device position control power, and to attitude control power and position control power decoupling；Wherein, magnetic buoyancy device attitude control power puts on quiet cabin and realization
To the active control of quiet cabin posture, control power in magnetic buoyancy device position acts on quiet cabin and dynamic cabin, realizes to moving the driven control that freight space is put；
The quiet cabin that dynamic cabin relative Attitude Control for Spacecraft device is obtained according to attitude command and dynamic cabin relative position sensor measurement is relative with dynamic cabin
Positional information, carries out the driven control of posture to moving cabin, and the Dong Cang executing agencies complete the overall adaptive of quiet cabin and dynamic cabin
Answer gesture stability.
2. big satellite control system of the bandwidth without momenttum wheel of high accuracy as claimed in claim 1 based on magnetic buoyancy device, it is special
Levy and be, cabin, as posture active control executing agency, is moved using chemical thruster, electric thrust in the quiet cabin using magnetic buoyancy device
Device, magnetic torquer move the relative position between cabin and quiet cabin and keep using magnetic buoyancy device as the driven control executing agency of posture
It is used as executing agency.
3. big satellite control system of the bandwidth without momenttum wheel of high accuracy as claimed in claim 2 based on magnetic buoyancy device, it is special
Levy and be, the Lorentz force that the magnetic buoyancy device moves generation by adjustable current coil in uniform magnetic field is controlled.
4. big satellite control system of the bandwidth without momenttum wheel of high accuracy as claimed in claim 1 based on magnetic buoyancy device, it is special
Levy and be, the dynamic cabin relative Attitude Control for Spacecraft device the quiet cabin of sound separate type satellite platform and dynamic cabin in-orbit locking process from
Adapt to adjustment gesture stability parameter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710354264.0A CN107168349A (en) | 2017-05-18 | 2017-05-18 | Big satellite control system of the bandwidth without momenttum wheel of high accuracy based on magnetic buoyancy device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710354264.0A CN107168349A (en) | 2017-05-18 | 2017-05-18 | Big satellite control system of the bandwidth without momenttum wheel of high accuracy based on magnetic buoyancy device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107804482A (en) * | 2017-09-25 | 2018-03-16 | 上海卫星工程研究所 | Non-contact double super satellite platform and its optimal decoupling control methods of principal and subordinate |
| CN110955221A (en) * | 2019-11-01 | 2020-04-03 | 上海卫星工程研究所 | Magnetic levitation control on-orbit test method of separated microsatellite |
| CN111319796A (en) * | 2020-02-28 | 2020-06-23 | 上海航天控制技术研究所 | Attitude control method and system based on electric-pushing track transfer |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107804482A (en) * | 2017-09-25 | 2018-03-16 | 上海卫星工程研究所 | Non-contact double super satellite platform and its optimal decoupling control methods of principal and subordinate |
| CN110955221A (en) * | 2019-11-01 | 2020-04-03 | 上海卫星工程研究所 | Magnetic levitation control on-orbit test method of separated microsatellite |
| CN110955221B (en) * | 2019-11-01 | 2020-08-25 | 上海卫星工程研究所 | Magnetic levitation control on-orbit test method of separated microsatellite |
| CN111319796A (en) * | 2020-02-28 | 2020-06-23 | 上海航天控制技术研究所 | Attitude control method and system based on electric-pushing track transfer |
| CN111319796B (en) * | 2020-02-28 | 2021-10-01 | 上海航天控制技术研究所 | Attitude control method and system based on electric-pushing track transfer |
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Application publication date: 20170915 |