Journal
INTERNATIONAL JOURNAL OF SYSTEMS SCIENCE
Volume 49, Issue 2, Pages 371-382Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/00207721.2017.1406172
Keywords
High-order mismatched disturbances; finite-time disturbance observer (FTDO); disturbance-observer-based control (DOBC); system reconstruction; unmanned helicopters
Categories
Funding
- Natural Science Foundation of China [61473137, 61703118]
- Fundamental Research Funds for the Central Universities [JUSRP11744]
Ask authors/readers for more resources
A novel disturbance-observer-based control method is investigated to attenuate the high-order mismatched disturbances. First, a finite-time disturbance observer (FTDO) is proposed to estimate the disturbances as well as the derivatives. By incorporating the outputs of FTDO, the original system is then reconstructed, where the mismatched disturbances are transformed to the matched ones that are compensated by feed-forward algorithm. Moreover, a feedback control law is developed to achieve the stability and tracking performance requirements for the systems. Finally, the proposed composite control method is applied to an unmanned helicopter system. The simulation results demonstrate that the proposed control method exhibits excellent control performance in the presence of high-order matched and mismatched disturbances.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available