Yeison Alberto Garces Gomez

Universidad Católica de Manizales | UCM · Unidad Académica de Formación en Ciencias Naturales y Matemática UAFCNyM

This paper presents a novel methodology to characterize loads using the instantaneous power tensor theory in three-phase three-wire or four-wire systems. Tensor theory is based on the dyadic product between voltage and current instantaneous vectors; this definition allows us to represent the phenomena of power quality produced by loads operation, t...

In this paper, the output voltage of a buck power converter is controlled by means of a quasi- sliding scheme. The Fixed Point Inducting Control (FPIC) technique is used for the control design, based on the Zero Average Dynamics (ZAD) strategy, including load estimation by means of the Least Mean Squares (LMS) method. The control scheme is tested i...

This paper shows the behavior of a three-phase power converter with Rotary Induction Motor (RIM) load using quasi-sliding and chaos control techniques for output voltage regulation. Controller is designed using Zero Average Dynamic (ZAD) and Fixed Point Inducting Control (FPIC) techniques. Designs have been tested in a Rapid Control Prototyping (RC...

The hybrid simulation concept consisting of a combination of computer simulation and laboratory tests. This approach is a cost effective alternative to physically testing the whole system and allows better understanding of complex coupled systems.This paper describes implementing an active power filter (APF) hybrid prototype where the source system...

This paper presents a hybrid simulation to test control strategies in active power filters using the generalized power tensor theory. The tensor theory is based on the dyadic or tensor product between voltage and current vectors. This new definition allows the estimate of reference currents for the control of active power filters “APFs” in multipha...

span lang="EN-US">Colony forming units counting is a conventional process carry out in bacteriological laboratories, and it is used to follow the behavior of bacteria in different conditions. Currently exist different systems, automatic or semi-automatic, to counting colony forming units exits, but, in general, many laboratories continue using manu...

p>This paper evaluates different optical and synthetic aperture radar (SAR) image fusion methods applied to open-access Sentinel images with global coverage. The objective of this research was to evaluate the potential of image fusion methods to get a greater visual difference in land cover, especially in oil palm crops with natural forest areas th...

span lang="EN-US">Populations located in the vicinity of slopes and soils derived from volcanic ash are constantly at risk due to the possibility of landslides. Such is the case of the city of Manizales, Colombia, which, due to its geomorphological characteristics, has experienced a significant number of landslides that have caused human and econom...

The prediction of harvesting in terms of quantity, quality, and peak dates in a coffee crop is of utmost importance both for coffee growers and for the entities in charge of marketing at an international level. Such forecasts make the projection of crop maintenance, fertilization, and bean production costs possible, which has an impact on the socia...

span lang="EN-US">Using wireless sensors for brain activity, brain signals associated with the mood states of engineering students have been captured before and during the taking of a mathematics exam. The characterization of brain lobule activity related to arousal/valence states was analyzed from reports on the literature of the horizontal dimens...

span lang="EN-US">This study is focused on analyzing seven years of bibliometric data of the International Journal of Electrical and Computer Engineering (IJECE) from 2014 to 2020. The analysis of 2,928 papers exhibits multi-folded growth of 34.25%, rising from 109 articles in 2014 to 638 articles by 2020. In addition, the analysis of the structure...

This paper presents an evaluation of land cover accuracy, particularly regarding oil palm crop cover, using optical/synthetic aperture radar (SAR) image fusion methods through the implementation of the random forest (RF) algorithm on cloud computing platforms using Sentinel-1 SAR and Sentinel-2 optical images. Among the fusion methods evaluated wer...

Induction motors are widely used in industrial applications as actuators, thanks to their simplicity of construction, which is subsequently reflected in low-cost maintenance. This paper shows the behavior of a three-phase power converter with a linear induction motor (LIM) as load, using a quasi-sliding control technique for output voltage regulati...

This study examined a classroom intervention through a virtual laboratory as a didactic strategy that was based on the understanding of the derivative concept applied to the problem of the tangent line. The Pretest�Posttest methodology was used to test if there are significant differences in the learning of the derivative concept, compared to the...

Este libro resultado de investigación es un producto derivado de rastreos realizados como parte del estudio “Comprensión de las experiencias educativas docentes de la escuela rural en la Subregión Centro - Sur de Caldas” con filiación institucional de la Universidad Católica de Manizales. La investigación educativa se convierte en la oportunidad de...

span lang="EN-US">Currently, telecommunications systems have become more widespread and there is still a discrepancy between whether or not non-ionizing radiation produces health problems in living beings at cellular level. From an experimental point of view, it is interesting to raise the correlation of high levels of electromagnetic pollution wit...

In this paper, the approach Linear Spectral Mixture Analysis and Object-Based Image Analysis (LSMA + OBIA) and Iterative Self-Organizing Data Analysis Technique and Object-Based Image Analysis (ISODATA + OBIA) are evaluated, for optimizing land cover mapping in high mountain areas from Landsat-8 multispectral images. Both approaches are applied to...

Photovoltaic lighting systems are unable to reach people with low purchasing power due to high installation costs, so they have traditionally been concentrated in families with high purchasing power and currently do not take into account the social power that this type of system represents. This article analyzes through bibliometric review the effe...

Agriculture as a competitive business, seeks to improve productivity within crops with a more sustainable environmental management. It is important that agriculture includes new technologies that allow it to generate differential, precise and real-time information. In Colombia, the current lack of knowledge about techniques that allow early identif...

The internet of things (IoT) has allowed important technological advances for monitoring and telemetry, thanks to the fact that IoT-based systems allow to obtain information in large areas, far from urban environments, and where low energy monitoring systems are required, features that are consistent with the requirements for high Andean wetlands t...

COVID-19 has forced government and health agencies to take measures to mitigate the spread of the disease and thus safeguard as many lives as possible. These measures have initially impacted the economy of many countries, and therefore they have been forced to gradually return to a new normalcy, in what they have called reopening. For reopening pol...

The project presents the application of the stages proposed by Poyla for solving problems in mathematics, which have been adapted in mechanical physic. Critical reading strategies have also been applied resulting in reading physical problems comprehensively. Objectives: To incorporate real problem solving as a teaching strategy in two mechanical ph...

The article describes a new method using remote sensing techniques to set the mathematical models that allow the estimation of the most relevant parameters for water quality monitored in Laguna de Sonso lake, Valle del Cauca, determined using Landsat-7 ETM+ multispectral images. Chlorophyll-a (Chl-a), Turbidity, Dissolved Oxygen (DO), and Total Pho...

Falls in the elderly represent important alterations in functionality and are given by intrinsic and extrinsic risk factors, which constitute an increase in morbidity and mortality, so a preventive care plan must be carried out. Objective: To describe the risk factors associated with falls of the elderly in a vulnerable community. Materials and Met...

Falls are an important aspect of older people's health because they trigger major injuries and even death in one-third of fallen patients, making them a major public health problem. Given the risk of physical and psychological injury if serious injuries occur as a result of a fall, prevention is an important consideration in today's health care lan...

div class="page" title="Page 1"> The continuous model of the linear induction motor (LIM) has been made considering the edge effects and the attraction force. Taking the attraction force into account is im- portant when considering dynamic analysis when the motor operates under mechanical load. A laboratory prototype has been implemented from whic...

span>In this paper we present a new algorithm to generate the reference signals to control the series and parallel power inverters in an unified power quality conditioner “UPQC” to enhance power quality. The algorithm is based in the instantaneous power tensor formulation which it is obtained by the dyadic product between the instantaneous vectors...

Electromagnetic pollution has taken on importance in recent decades, as interest is growing in knowing how the proliferation of mobile communication devices can affect the environment and generate health problems in the population. In this document, a systematic review of the methodologies for measuring electromagnetic radiation is carried out with...

The objective of this study was to determine the efficiency and theoretical stability of the anaerobic digestion of the wastewater sludge obtained from a municipal wastewater treatment plant, using co-digestion with cocoa pod husks. The chemical structure of sewage sludge, including its high carbon and nitrogen content in carbohydrates and fats, gi...

During pendulum analysis, the approximation for small angles is usually performed as a simple harmonic motion. However, for large angles, this approximation is not convenient so exact solutions are proposed by differ-ent methods. This paper presents the comparison of two solutions for the displacement of the pendulum in the domain of time and frequ...

This work describes a method to characterize a three-phase linear induction motor in order to determine the various parameters used in its per-phase equivalent circuit by a DSP-based electric-drives system. In LIM (Linear Induction Motor), the air gap is very large compared with the RIMs (Rotary Induction Motors). Further, the secondary part normal...

This paper presents the performance of a fixed-point induction control (FPIC) technique working in conjunction with the non-linear control technique called zero average dynamics (ZAD) to control chaos in a buck converter. The control technique consists of a sliding surface in which the error tends to zero at each sampling period. A switch is contro...

The unified power quality conditioners (UPQCs) are useful to correct distortions in voltage and current waveforms in case of problems related to harmonics, flicker, and power factor. The dual topology of the UPQC allows a loop control in the inverters less demanding in terms of switching functions; however, the control techniques proposed in the li...

A fifth-order dynamic continuous model of a linear induction motor (LIM), without considering “end effects” and considering attraction force, was developed. The attraction force is necessary in considering the dynamic analysis of the mechanically loaded linear induction motor. To obtain the circuit parameters of the LIM, a physical system was imple...

Introducción: Los acondicionadores unificados de calidad de la potencia UPQC permiten corregir, en los sistemas eléctricos, distorsiones de la forma de onda en estado estable, como los armónicos o el parpadeo, así como el factor de potencia. Objetivo: Este artículo presenta un nuevo concepto de compensación activa de sobretensiones transitorias po...

This paper outlines a new approach for the compensation of power systems presented through the use of a unified power quality conditioner (UPQC) which compensates impulsive and oscillatory electromagnetic transients. The newly proposed control technique involves a dual analysis of the UPQC where the parallel compensator is modelled as a sinusoidal...

This paper shows the behavior of a three-phase power converter with resistive load using a quasi-sliding and a chaos control techniques for output voltage regulation. Controller is designed using Zero Average Dynamic (ZAD) and Fixed Point Inducting Control (FPIC) techniques. Designs have been tested in a Rapid Control Prototyping (RCP) system based...

This paper shows the behavior of a three-phase power converter with resistive load using a quasi-sliding and a chaos control techniques for output voltage regulation. Controller is designed using Zero Average Dynamic (ZAD) and Fixed Point Inducting Control (FPIC) techniques. Designs have been tested in a Rapid Control Prototyping (RCP) system based...

This paper discusses an implementation of a power electronics workstation to be used in power quality studies. Two techniques of rapid control prototypes and hybrid simulations are applied to power electronic devices like active power filters, power switched sources and adjust speed drivers for testing power theories like p-q theory and generalized...

This paper presents a graphical way to identify and characterize loads using the α-β-0 frame and the generalized power tensor theory in three phase three-wire or four-wire systems. The α-β-0 frame is based on the Clarke's Transform and it takes three phase voltage or current signals, and leads it to a convenient space vector, spreading zero-sequenc...

This paper presents a graphical way to identify and characterize loads using the α-β-0 frame and the generalized power tensor theory in three phase three-wire or four-wire systems. The α-β-0 frame is based on the Clarke's Transform and it takes three phase voltage or current signals, and leads it to a convenient space vector, spreading zero-sequenc...

This paper shows the behavior of a Three-phase power converter with resistive load using a quasi-sliding control technique for output voltage regulation and a novel control technique to control chaos. The controller is designed using Zero Average Dynamic (ZAD) and Fixed Point Inducting Control (FPIC) techniques. The designs have been tested in a Ra...

In order to demonstrate the benefits of working RCP with Simulink and its real-time toolbox –RTW–, we suggest a control algorithm in closed loop under constant power source constraint, based on p-q theory, to compensate a nonlinear load: in this case, an uncontrolled six-pulse full-bridge rectifier with inductive -resistive load on the DC side.

In order to demonstrate the benefits of working RCP with Simulink and its real-time toolbox –RTW–, we suggest a control algorithm in closed loop under constant power source constraint, based on p-q theory, to compensate a nonlinear load: in this case, an uncontrolled six-pulse full-bridge rectifier with inductive -resistive load on the DC side.

In order to demonstrate the benefits of working RCP with Simulink and its real-time toolbox –RTW–, we suggest a control algorithm in closed loop under constant power source constraint, based on p-q theory, to compensate a nonlinear load: in this case, an uncontrolled six-pulse full-bridge rectifier with inductive -resistive load on the DC side.

This paper features a Rapid Control Prototype - RCP- for a Shunt Active Power Filter -SAPF- using a three-phase power inverter board and a Digital Sign Processing board -DSP-. In order to demonstrate the benefits of working RCP with Simulink and its real-time toolbox -RTW-, we suggest a control algorithm in closed loop under constant power source c...

This work describes a method to characterize a three-phase linear induction motor in order to determine the various parameters used in its per-phase equivalent circuit by a DSP-based electric-drives system. In LIM (Linear Induction Motor), the air gap is very large compared with the RIMs (Rotary Induction Motors). Further, the secondary part normal...