Listar ESID_Articles por autoría "8aad6865-08c7-4a7c-a807-b84210c997e5"
Mostrando ítems 1-20 de 28
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A new approach to averaging level control
Sanchis LLopis, Roberto; Romero Pérez, Julio Ariel; Martín Algarra, José María Elsevier (2011-09)In this paper, a new simple algorithm for averaging level control is presented. The proposed algorithm is based on the use of a static nonlinear controller to improve the input flow filtering by reducing the slope of the ... -
A new method for experimental tuning of PI controllers based on the step response
Sanchis LLopis, Roberto; Peñarrocha-Alós, Ignacio Elsevier (2021-09-16)In this paper we present a new method for tuning Proportional Integral (PI) controllers from experimental data obtained through an open loop step test over the process to be controlled. The tuning procedure requires first ... -
A new method for tuning PI controllers with symmetric send-on-delta sampling strategy
Romero Pérez, Julio Ariel; Sanchis LLopis, Roberto Elsevier (2016)In this paper we present a new method for tuning PI controllers with symmetric send-on-delta (SSOD) sampling strategy. First we analyze the conditions that produce oscillations in event based systems considering SSOD ... -
A PID tuning approach to find the optimal compromise among robustness, performance and control effort: implementation in a free software tool
Sanchis LLopis, Roberto; Peñarrocha-Alós, Ignacio Taylor and Francis (2021-10-20)A PID tuning approach is presented to achieve an optimal compromise among robustness, performance and control effort in terms of measurement noise amplification. The tuning strategy is based on the concept of fixed robustness ... -
Benchmark para la Evaluación de Algoritmos de Auto-ajuste de Controladores PID
Romero Pérez, Julio Ariel; Sanchis LLopis, Roberto Comité Español de Automática (2011)En este artículo se propone una metodología para la evaluación de algoritmos de auto-ajuste de controladores PID. Para ello se definen índices cuantitativos que permiten medir el comportamiento de los algoritmos, tanto ... -
Cascade multi-resonant disturbance observer design. Application to a distillation column
Peñarrocha-Alós, Ignacio; Tena, David; Sanchis LLopis, Roberto Elsevier (2023-09-19)In this work, we present a novel approach for input disturbance estimation design and implementation for dynamical processes under the influence of unknown disturbances that present a clear periodical behaviour of a known ... -
Co-design of H∞ jump observers for event-based measurements over networks
Peñarrocha-Alós, Ignacio; Dolz Algaba, Daniel; Romero Pérez, Julio Ariel; Sanchis LLopis, Roberto Taylor & Francis (2015-07-27)This work presents a strategy to minimise the network usage and the energy consumption of wireless battery-powered sensors in the observer problem over networks. The sensor nodes implement a periodic send-on-delta approach, ... -
Co-design of jump estimators and transmission policies for wireless multi-hop networks with fading channels
Dolz Algaba, Daniel; Quevedo, Daniel; Peñarrocha-Alós, Ignacio; Leong, Alex; Sanchis LLopis, Roberto Elsevier (2017)We study transmission power budget minimization of battery-powered nodes in a remote state estimation problem over multi-hop wireless networks. Communication links between nodes are subject to fading, thereby generating ... -
Control of a ceramic tiles cooling process based on water spraying
Sanchis LLopis, Roberto; Peñarrocha-Alós, Ignacio Elsevier (2009)The control of the surface temperature of ceramic tiles in a real industrial production line is developed. The process consists of a transportation band that carries the hot tiles through a water sprayer whose objective ... -
Design and implementation of a monitoring and control system for setting and balancing a tile grinding line
Prades Martell, Lledó; Serrano Mira, Julio; Sanchis LLopis, Roberto Elsevier (2013)A tile grinding line is composed of several consecutive pairs of opposed abrasive tools driven by electric motors that progressively remove material from the tile edges. A correctly balanced line is essential to optimize ... -
Estimation in multisensor networked systems with scarce measurements and time varying delays
Peñarrocha-Alós, Ignacio; Sanchis LLopis, Roberto; Albertos Pérez, Pedro Elsevier (2012-04)In this paper, the problem of estimating signals from a dynamic system at regular periods from scarce, delayed and possibly time disordered measurements acquired through a network is addressed. A model based predictor that ... -
Experiencias de evaluación automatizada en identificación y ajuste de PID
Dolz Algaba, Daniel; Peñarrocha-Alós, Ignacio; Sanchis LLopis, Roberto Comité Español de Automática (CEA-IFAC) (2016)En este trabajo se desarrolla un sistema de evaluación automatizada implementado en Moodle y mediante formularios de Google para asignaturas de control automático. El objetivo es fomentar el trabajo individual previo para ... -
H∞ observer design for a class of nonlinear discrete systems
Peñarrocha-Alós, Ignacio; Sanchis LLopis, Roberto; Albertos Pérez, Pedro Lavoisier (Hermes Science Publications) (2009)Necessary and sufficient conditions are presented under which a discrete-time autonomous system with outputs is locally diffeomorphic to an output-scaled linear observable system or an output-scaled nonlinear system in the ... -
Inferential networked control with accessibility constraints in both the sensor and actuator channels
Peñarrocha-Alós, Ignacio; Dolz Algaba, Daniel; Sanchis LLopis, Roberto Taylor & Francis (2013-01)The predictor and controller design for an inferential control scheme over a network is addressed. A linear plant with disturbances and measurement noise is assumed to be controlled by a controller that communicates with ... -
Jump state estimation with multiple sensors with packet dropping and delaying channels
Dolz Algaba, Daniel; Peñarrocha-Alós, Ignacio; Sanchis LLopis, Roberto Taylor & Francis: (2014-04)This work addresses the design of a state observer for systems whose outputs are measured through a communication network. The measurements from each sensor node are assumed to arrive randomly, scarcely and with a time-varying ... -
LK stability analysis of predictor-based controllers for discrete-time systems with time-varying actuator delay
González, Antonio; Sala, Antonio; Sanchis LLopis, Roberto Elsevier (2013-09)This paper extends the scaled-small gain proposal in Li and Gao (2011) [14], modifying the Lyapunov–Krasovskii functional to analyze the robust stability of predictor-based state-feedback controllers for discrete-time ... -
Networked gain-scheduled fault diagnosis under control input dropouts without data delivery acknowledgement
Dolz, Daniel; Peñarrocha-Alós, Ignacio; Sanchis LLopis, Roberto Wiley (2015-03-18)This paper investigates the fault diagnosis problem for discrete‐time networked control systems under dropouts in both control and measurement channel with no delivery acknowledgment. We propose to use a proportional ... -
Observer-based controllers with data dropout rate adaptation
Dolz Algaba, Daniel; Peñarrocha-Alós, Ignacio; Sanchis LLopis, Roberto Wiley (2017-02)In this work, we address the observer-based control problem for networked control systems with an unknown time-varying packet arrival rate (PAR) and under root mean square-norm bounded disturbances. We assume packetized ... -
Optimal tuning of PID controllers with derivative filter for stable processes using three points from the step response
Sanchis LLopis, Roberto; Peñarrocha-Alós, Ignacio ISA Transactions (2023)This paper proposes a novel approach for tuning Proportional Integral Derivative (PID) controllers, utilizing experimental data obtained from an open-loop step input. We propose to use the measurements of the times taken ... -
Performance Tradeoffs for Networked Jump Observer-Based Fault Diagnosis
Dolz Algaba, Daniel; Peñarrocha-Alós, Ignacio; Sanchis LLopis, Roberto Institute of Electrical and Electronics Engineers (IEEE) (2015-04)Print Request Permissions In this paper, we address the fault diagnosis problem for discrete-time multi-sensor systems over communication networks with measurement dropouts. We use the measurement outcomes to model the ...