Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1718781 | Aerospace Science and Technology | 2009 | 10 Pages |
Abstract
In this paper, controller design for high-order descriptor linear systems based on requirements on tracking performance and disturbance rejection is addressed. The proposed controller is composed of a decoupling controller and a disturbance term observer. When designing the controller, a new tracking performance index is first defined, which reflects the desired modes of tracking error of the closed-loop system. Based on this index, a decoupling controller with a disturbance term is derived. A disturbance term observer is then designed to estimate the disturbance term. Stability is proved for the closed-loop system and it is shown that the speed and shape of response of the closed loop tracking error can be conveniently regulated with only two parameters; furthermore the closed-loop system has robust disturbance compensation property. The attitude control of a spacecraft is used as an example to demonstrate the effectiveness of the controller.
Related Topics
Physical Sciences and Engineering
Engineering
Aerospace Engineering
Authors
Yicheng Liu, Tao Zhang, Jingyan Song, M. Junaid Khan,