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Author: search.filters.author.Jose Salcedo HernandezHas files: No

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    Design of a robust H2 state feedback temperature controller for a steel slab reheating furnace
    (MDPI, 2020-03-01)
    This article addresses the design of a robust H2 state feedback controller (H2-SFC) for the effective temperature control in the heating zone of the steel slab reheating furnace. Based on the available field data and system identification procedures, a mathematical model of the heating zone is derived, which presents autoregressive-moving average with exogenous input (ARMAX) structure and fourth order. The design of an H2-SFC controller for the effective control of the heating zone temperature of the slab reheating furnace under study is developed. The simulation results of the designed control system showed its high effectiveness compared to the conventional PID control.
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    State feedback temperature control based on a Smith predictor in a precalciner of a cement kiln
    (IEEE Computer Society, 2021-01-01)
    This paper proposes the design of a state feedback Smith predictor controller (SFC-SP) for the effective temperature control in a precalciner of a cement rotary kiln. The dynamic model of this process is obtained from real-time data by applying a system identification procedure. This identification procedure yields a fourth order with dominant time delay transfer function. A state feedback controller combined with a Smith predictor is therefore designed which behaves effectively. Simulated results compare the performance of the proposed controller with a standard PID controller. Two performance indexes have been used in this comparison: the integral absolute error (IAE), and the control effort (EU). Simulations show that the proposed controller provides lower values of these indexes and, therefore, outperforms the standard PID controller in terms of performance and accuracy
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    Design of a dead-time compensator robust H∞ state feedback temperature controller for a precalciner of a cement rotary kiln
    (MDPI, 2022-03-01)
    A dead‐time compensator robust H∞ state feedback controller (DTC‐H∞‐SFC) for the temperature control in a precalciner of a cement rotary kiln is designed. A mathematical model of the process under study with ARMAX structure was obtained. A dead‐time compensator robust H∞ state feedback controller is therefore designed. The results of the comparative evaluation of the DTC‐H∞‐SFC vs. DTC+PI designed controllers showed that the DTC‐H∞‐SFC gives improved performance of the control system.