Gustavo Juan Eduardo Scaglia

Gustavo Juan Eduardo Scaglia
National Scientific and Technical Research Council | conicet · National Scientific and Technical Research Council(CONICET) - Instituto de Ingenieria Quimica - Universidad Nacional de San Juan

Phd

About

148
Publications
29,562
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1,139
Citations
Citations since 2017
70 Research Items
776 Citations
2017201820192020202120222023050100150200
2017201820192020202120222023050100150200
2017201820192020202120222023050100150200
2017201820192020202120222023050100150200
Additional affiliations
January 2000 - July 2020
National Scientific and Technical Research Council
Position
  • Investigador Independiente

Publications

Publications (148)
Article
In the musts of wines there are spoilage yeasts that produce negative effects on the flavor. To try to eliminate it SO2 is used in wineries. However, this is toxic to human health and the World Health Organization (WHO) promotes an immediate reduction in its consumption. An alternative to the use of SO2 is the addition of killer yeast to eliminate...
Conference Paper
El desempeño de cualquier estrategia de monitoreo moderna depende fuertemente de la estructura de la red de sensores instalada en una planta. Una de las propiedades que más influye en el monitoreo de procesos es la Observabilidad, la cual se define como la capacidad de un sistema para reconstruir las variables de estado dadas las salidas. En sistem...
Article
Full-text available
Objectives To obtain a mathematical model that adequately describes the time lag between biomass generation and lactic acid production of lactic fermentations. Methods Seven experimental kinetics from other research works were studied to validate our proposal: four studies of Fungal Submerged Fermentation and three cases of Bacterial Submerged Fer...
Article
Full-text available
Fermentation of grape must to wine is carried out by a complex microbial mixture, which also involves spoilage yeasts of wine. The latter yeasts produce organoleptic changes that cause significant economic losses to the wine industry. SO2 is traditionally used to control this spoilage populations, but because of its harmful effects on human health,...
Article
Full-text available
Este trabajo muestra el diseño de un controlador adaptable para un buque marino; la estrategia de control que se propone es la aplicación de un controlador basado en álgebra lineal para la cinemática y una técnica de control adaptable para la parte dinámica del buque. El controlador basado en álgebra lineal (LABC) para cinemática recibe las referen...
Article
Full-text available
This work proposes the use of grape stalk, a residue from the wine industry, as a solid substrate for R. oryzae NCIM 1299 fermentation to obtain lactic acid. The use of filamentous fungi on grape stalk as a fermentative solid substrate has not been studied yet making this study an innovative research work. Grape Stalk was chemically characterized,...
Article
In this work, a novel methodology for the dynamic optimization of biodiesel batch production is developed. Two problem statements are carried out. In the first approach, only the final concentration of biodiesel is optimized. In the second, the signal energy is also considered, which is measured as the integral of the square reactor temperature ove...
Conference Paper
El control de sistemas subactuados con restricciones no holonómicas ha aumentado considerablemente en los últimos años. La linearización de estos sistemas dificulta bastante su control y, en general, son necesarios cálculos complejos para el diseño de los controladores. En este manuscrito, se propone diseñar un controlador discreto para el seguimie...
Preprint
Full-text available
Objectives To obtain a mathematical model that adequately describes the time lag between biomass generation and lactic acid production of lactic fermentations. Methods Seven experimental kinetics from other research works were studied to validate our proposal: four studies of Fungal Submerged Fermentation and three cases of Bacterial Submerged Fer...
Article
Full-text available
Tracking control of specific variables is key to achieve a proper fermentation. This paper analyzes a fed-batch bioethanol production process. For this system, a controller design based on linear algebra is proposed. Moreover, to achieve a reliable control, on-line monitoring of certain variables is needed. In this sense, for unmeasurable variables...
Article
Full-text available
In this paper, a new alternative for profiles tracking control considering additive uncertainties is proposed. Based on a previously presented work about a nonlinear and multivariable controller design for a fed-batch bioethanol production, parametric uncertainty and process disturbance are taken into account to find a more reliable control strateg...
Article
Full-text available
Spoilage yeasts generate considerable economic losses in the wine industry, and although sulphur dioxide (SO 2) is traditionally used for control, its use has become controversial because of its negative effects on health. Biocontrol has emerged as a partial alternative to SO 2 , and most research has focused on the selection of biocontrol yeasts a...
Article
Control of underactuated systems with non-holonomic constraints has been an issue of interest in recent years. These systems are hard to control because their linearization makes them uncontrollable and current approaches generally involve complex calculations. In this manuscript, a controller for trajectory tracking and positioning for a second-or...
Article
Full-text available
p class="icsmabstract">Este trabajo presenta una novedosa metodología para la optimización dinámica del proceso de producción de biodiesel a partir de aceites vegetales en modo discontinuo. La metodología propuesta tiene la particularidad de emplear la serie de Fourier para la parametrización de la acción de control, y algoritmos evolutivos para la...
Article
This work presents a novel control technique that combines linear algebra-based controller (LABC) methodology with sliding surface concepts. An LABC is developed from a first-order plus dead time model of the process, which is improved to work under uncertainties by the use of sliding surface concepts. Two different strategies are proposed to rejec...
Article
Full-text available
This work presents a novel control technique that combines concepts of Sliding Surface with a Linear Algebra methodology for controller design. The result is a controller with an improved robustness, while the chattering effect attributed to great uncertainties is avoided. A First Order Plus Dead Time (FOPDT) model of the process is used to develop...
Article
This paper proposes a novel strategy for dynamic open-loop optimization of multivariable nonlinear systems. The methodology is based on the Fourier series and orthonormal polynomials for the control vector parameterization in a sequential direct solution approach. The advantages of this technique are that a few number of parameters is required for...
Article
This research paper presents the design of a control technique based on the combination of Linear Algebra (LABC) with Neuro Adaptive Sliding Mode Control (NN-SMC) applied to the control of a marine vessel. Where the linear Algebra technique controls the kinematics of the Vessel and the NN-SMC controls its dynamics. Where the adaptive capacity of th...
Article
Biological processes are becoming more frequent nowadays due to the wide variety of products obtained from them and their possibility of making environmentally friendly some processes while high standard products are obtained. Nevertheless, controlling them has many difficulties due to their complex dynamic (multivariable and highly nonlinear syste...
Article
Winemakers must understand all chemical aspects involved and make the right decisions to obtain a high quality product. In a winemaking process, the tracking and control of certain variables are keys to achieve a proper fermentation. This paper presents state estimators design based on Gaussian processes, for on-line alcoholic fermentation monitori...
Article
Full-text available
p class="p1">En este tutorial se resumen las principales características de una nueva metodología de diseño de sistemas de control para el seguimiento de trayectorias en procesos no lineales. Esta metodología, denominada LAB (Linear Algebra Based), fue presentada por los autores hace más de diez años y ha tenido una fuerte repercusión por su sencil...
Article
Full-text available
Resumen Este trabajo presenta una novedosa metodología para la optimización dinámica del proceso de producción de biodiesel a partir de aceites vegetales en modo discontinuo. La metodología propuesta tiene la particularidad de emplear la serie de Fourier para la parametrización de la acción de control, y algoritmos evolutivos para la optimización d...
Article
Full-text available
Resumen En este tutorial se resumen las principales características de una nueva metodología de diseño de sistemas de control para el seguimiento de trayectorias en procesos no lineales. Esta metodología, denominada LAB (Linear Algebra Based), fue presentada por los autores hace mas de diez años y ha tenido una fuerte repercusión por su sencillez y...
Article
Full-text available
The development of controllers for underactuated systems with nonholonomic constraints has been a topic of significant interest for many researchers in recent years. These systems are hard to control because their linearization transform them into uncontrollable systems. The proposed approaches involve the use of a permanent excitation in the refer...
Article
This paper develops a trajectory tracking control design algorithm to be applied in unmanned aerial vehicles (UAVs). The strategy is simple but effective and it is based on linear algebra theory. The proposed approach reforms the column space of a system of linear equations at each sampling time to ensure the tracking objective when environmental d...
Chapter
In this chapter, the use of the Linear Algebra-Based Control Design (LAB CD) methodology is illustrated, being applied to a mobile robot. Initially, the simplest kinematic continuous time (CT) model of the robot is used and neither uncertainties nor external disturbances are considered. The simplicity of the proposed control structure is based on t...
Chapter
In this chapter, the problem of uncertainty in the model is considered. Some ideas were already presented in the previous chapters, but here both the marine vessel treated in Chap. 5 and the batch reactor considered in the previous chapter are analyzed in detail. These two processes may be considered as representative of a broad class of processes...
Chapter
In this chapter, the application of the methodology is extended to marine and aerial vehicles. Here, three representative systems are considered to show that the Linear Algebra-Based Control Design (LAB CD) methodology can be applied to systems of different nature. First, a model of a marine vessel is considered. It is interesting to note that the...
Chapter
To control the same process in discrete time, this control design methodology is applied in this chapter. Several models and discretization approaches for the same process are considered. The simpler the model is, the easier the controller results, and its tuning also becomes easier. The advantages and drawbacks of designing the control by using mo...
Chapter
In this chapter, the main features of the newly proposed control design methodology are presented. First, the class of systems to be considered is defined, and the key points in the design approach are drafted. Then, an introductory example allows the understanding of the main properties and to state the procedure to design the control. The Linear...
Chapter
In this chapter, chemical industrial processes are considered, and Linear Algebra-Based Control Design (LAB CD) is the approach used to design the controller. First, the case of dealing with a nonlinear first principles–based model of the process is considered. Then, an experimental linearized model around an operating point is considered, and, aga...
Chapter
In this introductory chapter, the main problem dealt with in the book is outlined, shortly reviewing the different control structures to implement the tracking of a given reference or profile. These structures appear to be complementary, and they should be combined in the search for an optimal solution of the problem. Most of the control design met...
Chapter
In this chapter, the advantages of using this methodology to design the tracking control for nonlinear processes is first summarized, and later on, some issues and critical drawbacks are discussed. As always in discrete time (DT) control, sampling period selection is crucial and should be decided as a trade-off between computational load and contro...
Article
Full-text available
This work presents a novel controller for the dynamics of robots using a dynamic variations observer. The proposed controller uses a saturated control law based on sintg−1. function instead of tanh.. Besides, this function is an alternative to the use of tanh. in saturation control, since it reaches its maximum value more gradually than the hyperbo...
Book
Full-text available
Describes the use of linear algebra based control algorithms (LABC) emphasizing their ease to use in various domains Synthesizes and generalizes the LABC, delivering realistic applications examples with additive uncertainty and time delay Presents an alternative perspective of control systems theories This book summarizes the application of linear...
Article
Full-text available
Bioethanol is one of the most studied alternative fuels nowadays. Due to its production process complexity and the low quality of the mathematical models that describe it, a reliable controller is needed to maximize the fuel production and minimize its environmental impact, even in the presence of uncertainty. Here, a controller for tracking optima...
Preprint
Full-text available
A quality index of linear multivariable models is presented in this article, with application to linear systems with variable parameters LPV systems. The index is based on the condition number of the static gains matrix of the process. An example of use in the identification by means of multiobjective optimisation of a non-linear process of two inp...
Book
This book summarizes the application of linear algebra-based controllers (LABC) for trajectory tracking for practitioners and students across a range of engineering disciplines. It clarifies the necessary steps to apply this straight-forward technique to a non-linear multivariable system, dealing with continuous or discrete time models, and outline...
Article
In this paper, a novel strategy for finding the optimal operation profiles for nonlinear dynamic processes is developed. Based on the direct sequential stochastic framework for dynamic optimization, this work proposes a technique based on Fourier series for the control vector parameterization, as an alternative to the traditional methods. This appr...
Article
This paper deals with the problem of marine vessels trajectory tracking control in presence of environmental disturbances. In order to achieve this objective, a previously published methodology for controllers design was improved. A new model error estimation based scheme is proposed to reduce the effect of the perturbations in the tracking error....
Article
Full-text available
In this work, a controller design technique called linear algebra based controller (LABC) is presented. The controller is obtained following a systematic procedure that is summarized in this work. In addition, the influence of additive uncertainty on the tracking error is analyzed, and a solution using integrators is proposed. A mobile robot is use...
Article
This work presents a simple controller, tunable by 3 parameters, capable of following variable time references. It is a Linear Algebra based Controller (LABC), developed from a First Order Plus Dead Time model (FOPDT). Two processes were selected: a high order linear process and a transesterification batch reactor from the biodiesel production proc...
Article
This paper addresses trajectory tracking problem in mobile robots considering additive uncertainties. The controller design method is based on linear algebra theory. Numerical estimation techniques are used to estimate the uncertainty value in each sample time. The controller is calibrated by stochastic way using the Monte Carlo Experiment. In addi...
Article
Full-text available
In this paper a controller is proposed based on linear algebra for a fed-batch bioethanol production process. It involves finding feed rate profiles (control actions obtained as a solution of a linear equations system) in order to make the system follow predefined concentration profiles. A neural network states estimation is designed in order to kn...
Article
A linear algebra controller (LACr) based on an empirical linear model of the system is presented in this paper. The controller design is based on a first order plus dead time (FOPDT) model and can be tuned using the characteristic parameters obtained from the reaction curve. In previous studies, the versatility of this proposed controller was teste...
Article
In this paper, a controller based on linear algebra for a fed-batch ethanol production process is proposed. It involves finding feed rate profiles (control actions obtained as a linear equations system solution) in order to make the system follow predefined concentration profiles. A Monte Carlo experiment is used for controller tuning. Moreover, se...
Article
linear algebra controller (LACr) based on an empirical linear model of the system is presented in this paper. The controller design is based on a first order plus dead time (FOPDT) model and can be tuned using the characteristic parameters obtained from the reaction curve. In previous studies, the versatility of this proposed controller was tested...
Article
Full-text available
p>En este trabajo se propone una estrategia de control en lazo cerrado para el seguimiento de perfiles óptimos previamente definidos para un bioproceso fed-batch. La mayor ventaja de este enfoque es que las acciones de control se calculan resolviendo un sistema de ecuaciones lineales, sin tener que linealizar el modelo matemático, lo que permite tr...
Article
The problem of optimal profiles tracking control under uncertainties for a nonlinear fed-batch bioprocess is addressed in this paper. Based on the results reported in,¹ this work aims to improve the control system response against parametric uncertainty and process disturbances. The methodology is simple, easy to implement, but with excellent resul...
Article
This paper proposes a new control law based on linear algebra. This technique allows nonlinear path tracking in multivariable and complex systems. This new methodology consists in finding the control action to make the system follow predefined concentration profiles solving a system of linear equations. The controller parameters are selected with a...
Article
Full-text available
A design of sliding mode controllers (SMC) with adaptive capacity is presented. This control technique is formed by two cascaded SMC controllers, one of them having an adaptive neural compensator (ANC); both are put on a WMR (wheeled mobile robot). The mobile robot is divided into a kinematics and a dynamics structure; the first SMC controller acts...
Article
Full-text available
The lack of online information on some bioprocess variables and the presence of model and parametric uncertainties pose significant challenges to the design of efficient closed-loop control strategies. To address this issue, this work proposes an online state estimator based on a Radial Basis Function (RBF) neural network that operates in closed lo...
Conference Paper
Full-text available
La falta de información de algunas variables y de sensores fiables para la medición de productos y biomasa en bioprocesos plantea desafíos significativos para el control de un biorreactor. En este trabajo se propone un controlador basado en álgebra lineal en lazo cerrado con un estimador de biomasa y otros dos estimadores para concentraciones de pr...
Conference Paper
Full-text available
Abstract: This paper proposes a dead time compensator based on a combination of the linear algebra control methodology (proposed by Scaglia, 2009) and an internal model structure (Smith predictor), to solve elevated dead time system problems. Moreover, the process transfer function of the nonlinear system linearized at some operation point is appro...
Article
Full-text available
This paper proposes a dead time compensator based on a combination of the linear algebra control methodology (proposed by Scaglia, 2009) and an internal model structure (Smith predictor), to solve elevated dead time system problems. Moreover, the process transfer function of the nonlinear system linearized at some operation point is approximated by...
Article
Full-text available
In this work, a novel algorithm for trajectory tracking in mobile robots is presented. For the purpose of tracking trajectory, a methodology based on the interpolation of trigonometric functions of the wheeled mobile robot kinematics is proposed. In addition, the convergence of the interpolation-based control systems is analysed. Furthermore, the o...
Article
This paper aims to solve the problem of tracking optimal profiles for a nonlinear multivariable fed-batch bioprocess by a simple but efficient closed-loop control technique based on a linear algebra approach. In the proposed methodology, the control actions are obtained by solving a system of linear equations without the need for state transformati...
Article
In this paper the problem of trajectory tracking considers that the values of the control actions do not exceed a maximum allowable value and the zero convergence of tracking errors is demonstrated. The control law is based on a linear algebra approach. First, the desired trajectories of some state variables are determined by analyzing the conditio...
Article
El objetivo de este trabajo es desarrollar una técnica de control simple pero eficiente, basada en un enfoque del algebra lineal para el seguimiento de perfiles óptimos de un bioproceso fed-batch, multivariable y no lineal. La metodología propuesta permite, conociendo los estados deseados, encontrar las acciones de control adecuadas mediante la res...
Article
This work presents a linear algebra based methodology for trajectory tracking of output variables in a Continuous Stirred Tank Reactor (CSTR), which exhibits a highly nonlinear dynamics. Its main advantage is that the condition for the tracking error tends to zero and the calculation of control actions are obtained by solving a system of linear equ...
Article
Full-text available
This paper proposes a new algorithm for controlling a formation of multiple autonomous aerial vehicles based on multiple control objectives. The strategy includes using the null space of a Jacobian matrix to achieve the different control objectives in a non-conflicting way. The mission is split into two elementary tasks, with suitable command refer...
Chapter
Full-text available
In this paper is presented an approach of Numerical Methods Controller (NMCr) based on an empirical linear model of the processes. The controller is developed for self-regulating processes with an open loop response similar as a first order plus dead time (FOPDT) model, and can be tuned using the characteristic parameters taken from the reaction cu...
Conference Paper
The aim of this paper is to design a Numerical Methods Controller (NMCr) based on a first order plus dead time (FOPDT) model of the actual process. The overall idea is to develop a general NMCr, which can be used for different self-regulating industrial processes, if they have a similar open loop response, such as an FOPDT model. Hence, this work s...
Conference Paper
The control of fed-batch bioprocess is a current challenge. Mathematical models are highly rigid systems of nonlinear differential equations with strict physical limitations. In this paper a simple and efficient technique for tracking optimal profiles with minimal error is developed. It is based on linear algebra for the calculation of control acti...
Article
Bacillus thuringiensis is a microorganism that allows the biosynthesis of δ-endotoxins with toxic properties against some insect larvae, being often used for the production of biological insecticides. A key issue for the bioprocess design consists in adequately tracking a pre-specified optimal profile of the dissolved oxygen concentration. To this...
Article
Service units used in precision agriculture are able to improve processes such as harvesting, sowing, agrochemical application, and manure spreading. This two-part work presents, a path tracking controller based on an algebraic approach for an articulated service unit, suitable for embedded applications, and its implementation to a hierarchical nav...
Article
Full-text available
The purpose of this paper is to implement, test and compare the performance of different control strategies for tracking trajectory for mobile robots. The control strategies used are based on linear algebra, PID controller and on a sliding mode controller. Each control scheme is developed taking into consideration the model of the robot. The linear...
Article
The problem of trajectory tracking control in mobile robots under uncertainties is addressed in this paper. Following the results of mobile robots trajectory tracking reported in (Scaglia et al., 2010), the problem of model errors is focused and the zero convergence of tracking errors under polynomial uncertainties is demonstrated. A simple scheme...