Single frame control moment gyro control method based on moment output capability optimization

A technology for controlling the torque gyroscope and output capability, which is applied in the direction of aerospace vehicle guidance devices, etc., and can solve problems such as large torque errors and inability to effectively avoid singularities

Inactive Publication Date: 2010-11-24
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
View PDF1 Cites 40 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0036] The present invention provides a single-frame control torque gyro based on the optimal torque output capability to solve the problem that the existing single-frame control torque gyro control law cannot effectively avoid the singularity, and will bring a large torque error when escaping from the singularity. manipulation method

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Single frame control moment gyro control method based on moment output capability optimization
  • Single frame control moment gyro control method based on moment output capability optimization
  • Single frame control moment gyro control method based on moment output capability optimization

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0081] Specific implementation mode 1. Combination Figure 1 to Figure 5 Describe this embodiment, based on the single-frame control torque gyro manipulation method with optimal torque output capability, the method is realized by the following steps:

[0082] Step 1. The satellite attitude control system obtains the current expected torque T from the CMG system according to the current attitude information c ;

[0083] Step 2. According to the current expected torque T obtained in step 1 c , calculate to make the CMG system output the expected torque T c Optimal frame angular velocity

[0084] The optimal frame angular velocity described in step 2 The calculation process is:

[0085] According to the desired torque T c and the current angular momentum h of the ith CMG unit i , to obtain the output expected torque T of the i-th CMG unit c The best angular momentum h di ,which is:

[0086] h di = g...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a single frame control moment gyro control method based on moment output capability optimization, relating to the prompt satellite attitude control field and solving the problems that the existing single frame control moment gyro control rule can not effectively avoid strange and big moment error can be caused when escaping strange. The method includes the concrete steps that: a satellite attitude control system obtains the current expected moment Tc output by CMG system according to the current attitude information; capability optimized frame angular velocity for the CMG system to output the expected moment Tc is calculated; and a frame rotating speed instruction of CMG system is obtained according to the expected moment Tc and the optimal frame angular velocity, so as to realize satellite attitude control. The method of the invention can effectively avoid strange problem, and meanwhile output moment error can be reduced, thus improving satellite attitude control accuracy.

Description

technical field [0001] The invention relates to the field of agile satellite attitude control, in particular to a single-frame control moment gyroscope group's high-precision moment output and a manipulation method for effective singularity avoidance. Background technique [0002] With the development of the aerospace industry, people have higher and higher requirements for the accuracy of the ground photography of the future earth observation satellites. High-precision ground photography resolution means a relatively small field of view aperture angle, and to achieve large-scale photography of sensitive areas requires the satellite to have fast maneuverability, which also requires the satellite attitude control system to provide a large enough the control torque. So far, the attitude control actuators that can provide large torque mainly include Control Moment Gyros (hereinafter referred to as CMG) and jet thrusters. Compared with jet thrusters, CMG not only has torque am...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B64G1/28
Inventor 孙志远张刘戴路徐开杨秀彬陈茂胜
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap