Satellite Fault Diagnosis and Fault Tolerant Control Method Based on Adaptive Observer
A satellite fault, fault-tolerant control technology, applied in adaptive control, general control system, control/regulation system, etc., can solve problems such as less consideration of space interference torque, complicated fault diagnosis, and limited fault diagnosis accuracy of satellite attitude control system, etc. Achieve the effect of improving on-orbit reliability and safety, preventing system catastrophic accidents, and quickly restoring stable performance
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0066] Aiming at the limitations of the prior art, in the research of the present invention, considering the satellite nonlinear model with multiplicative faults and external disturbances, a fault diagnosis strategy based on an adaptive observer is proposed, which can not only estimate the system state and the residual signal at the same time , and can determine the size of the unknown fault, and in the fault detection process, the acquisition of the threshold can ensure that the proposed fault detection strategy is robust to external disturbances, sensitive to faults, and effectively handles the gap between faults and disturbances. contradiction. In addition, based on the estimated value of the fault, a finite-time adaptive terminal sliding mode fault-tolerant controller is designed, which ensures that the satellite attitude system can quickly restore stable performance after the fault occurs, improves the reliability and safety of the satellite in orbit, and reduces potential...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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