نتایج جستجو برای: smith predictor

تعداد نتایج: 105678  

2016
Vladimir Bobal Petr Dostál Marek Kubalcik Stanislav Talas

Time-delays (dead time) are found in many processes in industrial practice. Time-delays are mainly caused by the time required to transport mass, energy and information. In many cases time-delay is caused by the effect produced by the accumulation of a large number of low-order systems. One of possibilities of control of such processes is their approximation by lower-order model with time-delay...

Journal: :Symmetry 2021

This study proposes a Disturbance-improved Model-free Adaptive Prediction Control (DMFAPC) algorithm for discrete-time nonlinear system with time delay and disturbance. The is shown to have good robustness. On the one hand, Smith predictor used predict output at future eliminate in system; on other an attenuation factor introduced input effectively measurement proposed data-driven control that ...

Journal: :Clinical chemistry 1998
B E Cham J L Smith D M Colquhoun

of alpha-protein mRNA, an indicator of hematogenous spreading hepatocellular carcinoma in the circulation: a possible predictor of metastatic hepatocellular carcinoma. Hepatology 1994;20:1418–25. 10. Ferro MA, Heinemann D, Smith PBJ, Symes MO. Effect of stilboestrol and testosterone on the incorporation of selenomethionine by prostatic carcinoma. Br J Urol 1988;62:166–74. 11. Griwatz C, Brandt ...

2009
S. Alcántara C. Pedret R. Vilanova W. D. Zhang

In this paper a control configuration for inverseresponse processes is presented. It results in a Smith-type predictor scheme that aims to put the non-minimum phase dynamics out of the feedback loop. The design is carried out analytically by solving an H∞ weighted optimization problem assuming a second order stable process with one positive zero. The performance of the proposed control configur...

2006
A. SESHAGIRI RAO

The classical multivariable Smith predictor is extended to multivariable nonsquare systems with multiple time delays where the number of process inputs is higher than the process outputs. Pairing for input and output variables is carried out using the block relative gain technique. Simplified decoupling method is applied to design the decouplers. The decoupled processes are modeled as first-ord...

2011
Amjad Abu-Rmileh Winston Garcia-Gabin

Type 1 diabetic patients depend on external insulin delivery to keep their blood glucose within near-normal ranges. In this work, two robust closed-loop controllers for blood glucose regulation are developed to prevent the life-threatening hypoglycemia, as well as to avoid extended hyperglycemia. The proposed controllers are designed by using the sliding mode control technique in a Smith predic...

1997
S. Mascolo

This report presents a feedback control algorithm for ATM congestion control in which ABR/UBR source rates are adjusted according to VC queue levels at intermediate nodes along the path. The goal is to fully and promptly utilize the available bandwidth left by QOS constrained traac (CBR+VBR) for transmitting the less QOS stringent ABR/UBR traac, without incurring in queue overrow and consequent...

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