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Control system for satellite antenna motion

A motion control system and satellite antenna technology, applied in the direction of control using feedback, can solve the problems of limited control accuracy and response performance, and achieve high algorithm execution speed, high overall system control frequency, high computing speed and precision Effect

Inactive Publication Date: 2008-01-23
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the sampling frequency and overall control frequency of the system are limited, and the application of complex control logic is also limited. This is the main reason for the limited control accuracy and response performance of such structural systems.

Method used

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  • Control system for satellite antenna motion
  • Control system for satellite antenna motion
  • Control system for satellite antenna motion

Examples

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Embodiment Construction

[0027] As shown in Figure 1, the present invention is mainly composed of a constant DC power supply circuit 1, a system given circuit 2, a main control unit 3, a drive and power circuit 4, a current detection circuit 5, an angular position detection circuit 6, a rotational speed detection circuit 7, Composed of 8 actuators, the constant DC power supply circuit 1 provides +5V voltage to the system given circuit 2 and the main control unit 3; to the isolated drive circuit 41, current detection circuit 5, and angular position detection circuit in the drive and power circuit 4 6. Speed ​​detection circuit 7 provides ±15V voltage; provides regulated DC +28V power supply to MOSFET power circuit 42 in drive and power circuit 4; system reference circuit 2 provides 16-bit angular position reference signal, which is sent to the main control unit 3; the current detection circuit 5 samples the MOSFET power circuit 42 to output the three-phase current, generates a three-phase current detect...

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PUM

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Abstract

A satellite antenna kinetic control system comprises a system setting circuit, a main control unit, a drive and power circuit, a current sensing circuit, a angular position sensing circuit, a rotate speed sensing circuit and a actuator. The main control unit mainly includes a DSP chip and a FPGA chip. The utility model effectively improves the pointing accuracy and the dynamic tracking performance and decreases the cubic capacity and the power consumption of the control system, so as to provide the significant value for the application in the field of the satellite antenna pointing control system.

Description

technical field [0001] The invention relates to the field of digital servo control systems, and is used for driving components of high-precision, small-volume, low-power consumption pointing control actuators such as satellite antennas. Background technique [0002] At present, the servo system is usually a closed-loop control system with negative feedback, and open-loop control can also be used to realize its functions in some occasions. The satellite antenna motion control system is a typical servo system. It can control the microwave antenna according to the requirements of the input signal in real time and accurately to move along a certain trajectory or position it at a certain point with high precision, which is a necessary prerequisite for antenna communication. [0003] Relevant research data at home and abroad show that the traditional satellite antenna movement digital control system mostly uses low-speed processing devices such as single-chip microcomputers and em...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D3/20
Inventor 刘刚房建成刘建章韩邦成李光军王志强
Owner BEIHANG UNIV
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