Abstract
This paper investigates the stability analysis and H ∞ control for a class of nonlinear time-delay systems, and proposes a number of new results. Firstly, an equivalent form is given for this class of systems by means of coordinate transformation and orthogonal decomposition of vector fields. Then, based on the equivalent form, some delay-dependent results are derived for the stability analysis of the systems by constructing a novel Lyapunov functional. Thirdly, the authors use the equivalent form and the obtained stability results to investigate the H ∞ control problem for a class of nonlinear time-delay control systems, and present a control design procedure. Finally, an illustrative example is given to show the effectiveness of the results obtained in this paper. It is shown that the main results of this paper are easier to check than some existing ones, and have less conservatism.
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This research is supported by the National Natural Science Foundation of China under Grant Nos. G60774009, 61074068, 61034007, 61374065, and 61304033, the Research Fund for the Doctoral Program of Chinese Higher Education under Grant No. 200804220028, the Natural Science Foundation of Shandong Province under Grant Nos. ZR2013ZEM006, ZR2011EL021, BS2011ZZ012, 2013ZRB01873, and Colleges and Universities in Shandong Province Science and Technology Project under Grant Nos. J13LN37 and J12LN29.
This paper was recommended for publication by Editor JIANG Zhongping.
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Yang, R., Wang, Y. New delay-dependent stability criteria and robust control of nonlinear time-delay systems. J Syst Sci Complex 27, 883–898 (2014). https://doi.org/10.1007/s11424-014-1254-6
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DOI: https://doi.org/10.1007/s11424-014-1254-6