Brief paper: Optimal tracking and two-channel disturbance rejection under control energy constraint

Authors:
Baoxian Wang;Zhi-Hong Guan;Fu-Shun Yuan
Affiliations:
Department of Control Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR China;Department of Control Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR China;School of Mathematics and Statistics, Anyang Normal University, Anyang, 455002, PR China
Venue:
Automatica (Journal of IFAC)
Year:
2011

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Abstract

In this paper, the optimal tracking problem under control energy constraint is studied. The disturbance in the upstream channel and down channel is adequately considered. Some new results are derived and it is shown that the performance limitation is tightly dependent on the non-minimum phase zeros and the unstable poles. In addition, the performance limitation, which is greater than that of the disturbance only in the down channel, depends on other new non-minimum phase zeros. Finally, the example explains and validates the conclusion.