Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10400105 | Control Engineering Practice | 2005 | 11 Pages |
Abstract
This paper presents a hybrid control approach to circumvent the basic trade-off between performance and robustness from an individual controller. This hybrid control strategy utilizes a robust controller for guaranteed robustness when the plant model is not well known, and employs an adaptive controller for high performance after sufficient plant information has been collected. To avoid a degraded transient after controller switching, a bumpless transfer scheme is designed and incorporated into this hybrid control approach. This bumpless transfer design is an extension from a conventional latent tracking bumpless transfer design for a single-input single-output (SISO) plant with 1 degree of freedom (DOF) controllers to either a SISO plant with multiple DOF controllers or a multi-input multi-output (MIMO) plant. Experimental results implemented on an active vibration isolation testbed demonstrate the effectiveness of the proposed hybrid control strategy.
Keywords
Related Topics
Physical Sciences and Engineering
Engineering
Aerospace Engineering
Authors
Y. Zhang, A.G. Alleyne, D. Zheng,