Composite disturbance‐observer‐based control andH∞control for complex continuous models

Xinjiang Wei; Lei Guo

doi:10.1002/rnc.1425

journal article Apr 16, 2009

Composite disturbance‐observer‐based control andH∞control for complex continuous models

Xinjiang Wei

Lei Guo

International Journal of Robust and Nonlinear Control Vol. 20 No. 1 pp. 106-118 · Wiley

View at Publisher Save 10.1002/rnc.1425

Abstract

AbstractA novel type of control scheme combining the disturbance‐observer‐based control (DOBC) withH∞control is proposed for a class of complex continuous models with disturbances. The disturbances are supposed to include two parts. One part in the input channel is generated by an exogenous system with uncertainty, which can represent the harmonic signals with modeling perturbations. The other part is supposed to have the boundedH2‐norm. Parametric uncertainties exist both in concerned plant and in exogenous subsystem. The disturbance observers based on regional pole placement and D‐stability theory are designed and integrated with conventionalH∞control laws. The new composite DOBC andH∞control scheme is applied to complex continuous models for the case with known and unknown nonlinearity, respectively. Then the first type of disturbances can be estimated and rejected, and the second type can be attenuated; simultaneously, the desired dynamic performances can be guaranteed. Simulations for a flight control system are given to demonstrate the effectiveness of the results and compare the proposed results with the previous schemes. Copyright © 2009 John Wiley & Sons, Ltd.

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Metrics

362

Citations

17

References

Details

Published: Apr 16, 2009
Vol/Issue: 20(1)
Pages: 106-118
License: View

Authors

X

Xinjiang Wei

School of Information and Electrical Engineering Ludong University Yantai China

L

Lei Guo

University of Electronic Science and Technology of China

Funding

National Science Foundation of China Award: 60774013

Science Foundation of Ludong University Award: 22300301

Cite This Article

Xinjiang Wei, Lei Guo (2009). Composite disturbance‐observer‐based control andH∞control for complex continuous models. International Journal of Robust and Nonlinear Control, 20(1), 106-118. https://doi.org/10.1002/rnc.1425

Composite disturbance‐observer‐based control andH∞control for complex continuous models

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