H ∞ Optimal Performance Design of an Unstable Plant under Bode Integral Constraint

Fanwei Meng, Aiping Pang, Xuefei Dong, Chang Han and Xiaopeng Sha

Complexity, 2018, vol. 2018, 1-10

Abstract:

This paper proposed the H ∞ state feedback and H ∞ output feedback design methods for unstable plants, which improved the original H ∞ state feedback and H ∞ output feedback. For the H ∞ state feedback design of unstable plants, it presents the complete robustness constraint which is based on solving Riccati equation and Bode integral. For the H ∞ output feedback design of unstable plants, the medium-frequency band should be considered in particular. Besides, this paper presents the method to select weight function or coefficients in the H ∞ design, which employs Bode integral to optimize the H ∞ design. It takes a magnetic levitation system as an example. The simulation results demonstrate that the optimal performance of perturbation suppression is obtained with the design of robustness constraint. The presented method is of benefit to the general H ∞ design.

Date: 2018
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Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:hin:complx:4942906

DOI: 10.1155/2018/4942906

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