Results 211 to 220 of about 634,139 (266)
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Control of nonlinear systems with time-varying output constraints
Automatica, 2011zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Keng Peng Tee +2 more
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Minimum-variance control of linear time-varying systems
Automatica, 1997Single-input, single-output linear discrete-time systems with time-varying parameters are considered. The minimum-variance control of such systems with closed-loop stability guarantee is presented. The method is based on modifying the regular minimum-variance controller to achieve closed-loop stability. Simulation results are also included.
Li, Zheng, Evans, Rob
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A Method for Suboptimal Control of Time-varying Systems
Journal of the Franklin Institute, 1978Abstract A finite set expansion method is presented for the suboptimal control of linear time-varying systems with both complete and incomplete state availability. By projecting the dynamical model of the system into a subspace of Walsh signals, we are able to implement the control by employing a computational method which involves constant ...
Tzafestas, S., Stavroulakis, P.
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Nonstationary robust control for time-varying system
Proceedings of the 2004 American Control Conference, 2004This work presents a synthesis method of nonstationary robust controller for a time-varying system considering various uncertainties. For the uncertainties, a scaled structured uncertainty is regarded as weightings for variations of parameters and a design function in the time domain.
Masatsugu Otsuki, Kazuo Yoshida
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Simultaneous Identification and Control of Time-Varying Systems
Proceedings of the 45th IEEE Conference on Decision and Control, 2006The paper addresses two complementary problems. The first one is to derive a rigorous formulation of adaptive control when the parameters of the plant are time-varying. To make the problem tractable, the time-variation is approximated by a piecewise-constant function assuming a finite number N of unknown values.
Matthias J. Feiler, Kumpati S. Narendra
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Adaptive control of linear time-varying systems
Automatica, 2003This paper presents an adaptive output feedback control algorithm that assures boundedness of all closed-loop signals, arbitrarily improved transient performance of the tracking error, and asymptotically vanishing tracking error when parameter time derivatives are \(L^1\) signals and disturbances are \(L^2\) signals.
MARINO R,, TOMEI P
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An adaptive control method for time-varying systems
European Journal of Operational Research, 2000An adaptive control technique based on fuzzy parameter identification is proposed for time-varying linear systems. A fuzzy identification algorithm has been developed for handling the fuzziness of the system input, output and time-varying parameters. The identification of the fuzzy parameters includes estimations for past and present time, as well as ...
Bingyong Tang, Xu Li Da, Wenjie Wang
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Time-varying optimal control of a non-linear system
42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475), 2004The solution is given to a time-varying optimal state feedback problem with stochastic disturbances. The system is composed of a plant and disturbance model represented by polynomials in the delay operator, z/sup -1/, leading to a solution involving spectral factorisation of operator equations and Diophantine operator equations.
Grimble, M.J., Martin, P.
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Robust Controller Synthesis for Uncertain Time-Varying Systems
SIAM Journal on Control and Optimization, 2002The paper extends results on linear time-invariant robust design to linear time-varying systems (arising for example when linearizing a non-linear system along a given trajectory). Tools include standard state-space results on robust design, such as the scaled small-gain theorem, but also less standard results on linear operator inequalities and ...
Carol Pirie, Geir E. Dullerud
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Optimal Control of Time-Varying Queuing Systems
Management Science, 1973The optimal control of a single-stage multi-server time-varying queuing system is considered. A mathematical model and an index of performance for the queuing system are formulated, and the optimal arrival rate of the input process to the service mechanism is then determined.
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