Name
Title | ||
|---|---|---|
Optimal plant shaping for high bandwidth disturbance rejection in discrete disturbance observers |
Abstract | ||
|---|---|---|
The Q-filter cut-off frequency in a Disturbance Observer (DOB) is restricted by the model mismatch between the plant and its nominal model. DOB Robustness is usually poor when the cut-off frequency of Q-filter increases. In this paper, robustness of the DOB is improved by shaping the true plant with a cascaded frequency shaping filter, while the nominal plant model remains fixed. Once the shaping filter is optimally designed based on DOB robust stability, the cut-off frequency of Q-filter can be greatly increased without loss of stability. The proposed algorithm is implemented on a typical tracking problem, i.e., the spiral writing in hard disk drives. |
Year | DOI | Venue |
|---|---|---|
2010 | 10.1109/ACC.2010.5531256 | American Control Conference |
Keywords | DocType | ISSN |
band-stop filters,filtering theory,observers,stability,dob robust stability,q-filter cut-off frequency,cascaded frequency shaping filter,discrete disturbance observers,high bandwidth disturbance rejection,nominal plant model,optimal plant shaping,stability analysis,optimal design,robustness,resonant frequency,noise | Conference | 0743-1619 |
ISBN | Citations | PageRank |
978-1-4244-7426-4 | 3 | 0.81 |
References | Authors | |
3 | 2 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Chen Xu | 1 | 57 | 15.14 |
| M. Tomizuka | 2 | 1464 | 294.37 |