Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Multi-momentum wheel angular momentum maximum envelope calculation in-orbit implementation method

An implementation method and a momentum wheel technology, applied in the field of satellite attitude control, can solve the problems of wasting the angular momentum output capability of the wheel train, reducing the attitude control capability of the wheel control satellite, and inapplicable computing resources, etc. Momentum output ability, the effect of small storage capacity

Inactive Publication Date: 2021-08-10
BEIJING INST OF CONTROL ENG
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For wheel-controlled satellites, the pseudo-inverse method is generally used to distribute the control torque. This method is relatively simple and practical, but the angular momentum output that can be achieved by the momentum wheel torque distribution based on the pseudo-inverse is much smaller than the maximum angular momentum envelope of the wheel train. Therefore, the angular momentum output capability of the wheel train is seriously wasted, and the attitude control capability of the wheel control satellite is greatly reduced.
In order to make full use of the maximum angular momentum envelope of the momentum wheel combination, the current method is to calculate the maximum angular momentum output of the wheel train in all directions based on the search method, and determine the maximum envelope surface of the angular momentum output of the entire wheel train through large-scale calculations , which is not suitable for the limited computing resources on the star

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
  • Multi-momentum wheel angular momentum maximum envelope calculation in-orbit implementation method
  • Multi-momentum wheel angular momentum maximum envelope calculation in-orbit implementation method
  • Multi-momentum wheel angular momentum maximum envelope calculation in-orbit implementation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0111] According to the method that the present invention proposes, take 50Nms momentum wheel to be installed as example with pentagonal pyramid configuration, its maximum angular momentum envelope surface is figure 1 and figure 2 Shown on the left. Use the search function fminimax in the Matlab toolbox to find the maximum angular momentum, through 10 4 The maximum enveloping surface of the angular momentum of the momentum wheel can be obtained, such as figure 1 and figure 2 shown in the figure on the right. The calculation results show that the maximum envelope surface obtained by the two methods is exactly the same, but the latter has a large amount of calculation and takes more time because it has no analytical form, which is not conducive to the realization of the on-board computer; the former can obtain the envelope at one time through analytical calculation On the surface, the calculation speed is fast, the storage capacity is small, and it can be called at any tim...

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 relates to a multi-momentum wheel angular momentum maximum envelope calculation in-orbit implementation method, and belongs to the technical field of satellite attitude control. According to the analytical calculation method, the maximum envelope of the angular momentum under any momentum wheel combination can be rapidly and conveniently obtained through one-time calculation so that a momentum wheel output torque can be distributed according to the maximum envelope surface, the angular momentum output capacity of a wheel train is fully utilized, and finally the rapid maneuvering capacity of the whole satellite is effectively improved.

Description

technical field [0001] The invention relates to an on-orbit realization method for calculating the maximum envelope of multi-momentum wheel angular momentum, and belongs to the technical field of satellite attitude control. Background technique [0002] For wheel-controlled satellites, the pseudo-inverse method is generally used to distribute the control torque. This method is relatively simple and practical, but the angular momentum output that can be achieved by the momentum wheel torque distribution based on the pseudo-inverse is much smaller than the maximum angular momentum envelope of the wheel train. Therefore, the angular momentum output capability of the wheel train is seriously wasted, and the attitude control capability of the wheel-controlled satellite is greatly reduced. In order to make full use of the maximum angular momentum envelope of the momentum wheel combination, the current method is to calculate the maximum angular momentum output of the wheel train in...

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): B64G1/24B64G1/28
CPCB64G1/244B64G1/285B64G1/245
Inventor 陆栋宁雷拥军王淑一陈超王晋鹏刘洁关宏谢鸣宇綦艳霞李晶心何世民
Owner BEIJING INST OF CONTROL ENG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com