Jorge Luis Diaz Rodriguez

University of Pamplona · Department of Electrical, Electronics, and Telecommunications Systems

This work deals with the development of a self-adjusting reactive compensator prototype for residential applications and its simulation in Matlab. A reactive power compensation technique is established, with a simple topology and a control strategy that keeps the system compensated for load fluctuations. Finally, the adequate functioning of the pro...

In this article Flexible AC Transmission Systems (FACTS) devices are addressed, especially the design and implementation of a D-STATCOM prototype, making a comparison between the theoretical behavior and the aforementioned prototype. A fuzzy logic-based strategy was used for voltage control, employing the Matlab Fuzzy Logic Designer tool. The neura...

The article shows the realization of a platform that allows to determine different electrical parameters in asynchronous machines in dynamic state, is based on the investigation and approach of different control schemes applied to electric induction motors where the motor's own data is required to be applied ; with the approach of methodologies res...

This paper deals with the design, tests, and results of implementing a D-STATCOM prototype. The process is detailed from the point of view of the design, going to the operation of the D-STATCOM and ending with the design of the prototype. Finally, an analysis of the tests and results obtained is carried out to validate the design and the developed...

Introduction— The DC/AC power conversion systems currently used in multiple applications such as alternative energy sources involve power quality problems due to voltage regulations and distortions such as those caused by harmonic distortion. Objective— Develop a power converter prototype that, through a multi-objective genetic algorithm, allows op...

Resumen Introducción− El controlado PID es el algoritmo matemático mayormente utilizado como estrategia de control regulatorio en entornos industriales. Las aplicaciones son variadas; sin embargo, su respuesta depende del cálculo adecuado de sus tres parámetros: el proporcional, el derivativo y el integral. La sintonización analítica y algunos méto...

Resumen Este artículo trata sobre el desarrollo y comprobación de una metodología que permita al usuario final, sintonizar un controlador difuso para sistemas multivariables (MIMO). La estrategia se realizó por medio de la simulación del modelo de una columna de destilación metano-agua Wood-Berry. Mediante una serie de pasos descritos en este docum...

Resumen Este artículo trata sobre el diseño e implementación de una plataforma por medio de sensores y de una tarjeta de adquisición de datos permite visualizar variables en tiempo real y obtener parámetros de las pruebas aplicadas a las máquinas síncronas en estado dinámico. En particular se utiliza en máquinas sincrónicas de polos lizos en las cu...

This work presents the development of a multilevel power inverter prototype with the use of optimized modulation which manages to significantly minimize the harmonic content of output voltages using Genetics Algorithms. Additionally, it integrates a DC/DC converter that allows to regulate the RMS value of the inverter output voltage through the con...

Este artículo trata sobre el desarrollo y comprobación de una metodología que permita al usuario final, sintonizar un controlador difuso para sistemas multivariables (MIMO). La estrategia se realizó por medio de la simulación del modelo de una columna de destilación metano-agua Wood-Berry. Mediante una serie de pasos descritos en este documento en...

Este artículo trata sobre el diseño e implementación de una plataforma por medio de sensores y de una tarjeta de adquisición de datos permite visualizar variables en tiempo real y obtener parámetros de las pruebas aplicadas a las máquinas síncronas en estado dinámico. En particular se utiliza en máquinas sincrónicas de polos lizos en las cuales, co...

This article presents the design and simulation of a static compensator for power factor control by injecting reactive power into the network. For this, the system estimates the reagent consumption of the load and the reagent contribution from the supply is suppressed through a closed-loop control system that acts on the firing angles of the compen...

En este artículo se presenta un inversor fotovoltaico multinivel monofásico de puente H en cascada, de fuente común de dos etapas, que adopta un algoritmo de seguimiento de máximo punto de potencia que al mismo tiempo permite realizar la sincronización y monitoreo de la red, se utiliza el convertidor de puentes H en cascada de fuente común de 2 eta...

En este artículo se presenta un inversor fotovoltaico multinivel monofásico de puente H en cascada, de fuente común de dos etapas, que adopta un algoritmo de seguimiento de máximo punto de potencia que al mismo tiempo permite realizar la sincronización y monitoreo de la red, se utiliza el convertidor de puentes H en cascada de fuente común de 2 eta...

Este artículo presenta el diseño y simulación de un compensador estático para el control del factor de potencia mediante la inyección de potencia reactiva en la red. para esto, el sistema estima el consumo de reactivos de la carga y el aporte de reactivos proveniente del suministro es suprimido a través de un sistema de control a lazo cerrado que a...

Currently there is a great interest from the electronic physical point of view in reducing losses and optimizing the harmonic content of power converters. Especially of the multilevel ones that have great advantages since they can work with low commutations. That is why, this paper proposes and verifies a methodology for the development of equation...

This article presents the development of an algorithm for speed control of the induction motor by means of the DSP core microcontroller TMS320F28069M, which is in charge of performing the digital treatment of the voltage and current signals measured to estimate the speed of rotor and close the control loop. The algorithms consider the operating lim...

This paper deals with the design and implementation of type-2 fuzzy controller, through a tank level control plant as a pilot system to analyze the response using performance indexes. The controller was developed using type-2 fuzzy logic from a mathematical approach and utilizing the identification of the process through a parametric method. Additi...

This paper deals with the speed estimation of an induction motor (IM) based on an Adaptive Neuro-Fuzzy Inference System (ANFIS) for the speed control of the induction machine using the sensorless control technique. The estimation technique ANFIS was reviewed, as well as its implementation detailed. Firstly, the induction motor was simulated with th...

This paper deals with the design and development of a prototype for speed estimation of a three-phase squirrel cage induction motor using Volts/Hertz control. The speed estimation was using an embedded electronic device with an adaptive neuro-fuzzy inference system. In this way, it is expected to increase the reliability of the rotor speed measurem...

Este artículo presenta el modelo y simulación de un D-STATCOM en la herramienta Simulink - Matlab, el objetivo es corregir el factor de potencia de una carga inductiva o capacitiva de un sistema de distribución, utilizando una técnica de control propuesta que busca que el dispositivo eleve el factor de potencia de la carga dentro de los límites per...

Este artículo presenta el desarrollo de un seguidor de máximo punto de potencia (MPPT), para un sistema fotovoltaico (FV), utilizando la técnica de voltaje fraccional de circuito abierto. El objetivo es desarrollar un prototipo de bajo costo que permita obtener el máximo punto de potencia de un generador FV, con el mínimo requerimiento de computo y...

This work deals with the development of sensorless control for the induction motor by means of a three-phase multilevel converter with optimization of the harmonic content in line voltages. The control was designed and implemented, based on the frequency variation method implemented in an H-bridge multi-level converter of common source in the range...

This paper presents the development of an algorithm for speed control for the induction motor using the TMS320F28069M microcontroller, the algorithms were performed based on the operating limits of the scalar control technique and the characteristics of the DSP. The control technique together with the optimization algorithm used will provide the mo...

This paper deals with the study, design and implementation of a speed estimation technique, using an Artificial Neural Network (ANN), for a three-phase induction motor type Squirrel Cage. The main objective of this technique is to estimate the speed of the engine from its own conditions at low speed, with the purpose of applying vector control with...

The present paper shows the development of a frequency inverter by means of a common source three-phase multilevel inverter of 15 steps, this adopts modulations found by means of a multiobjective optimization algorithm, developed in Matlab, which allows obtaining a law of voltage vs. frequency that reduces the value of the voltage as the frequency...

This paper deals with the development of a multiobjective optimization algorithm programmed in Matlab, which allows to obtain a voltage vs frequency ratio (V/F) that decreases the voltage value as the frequency is reduced by maintaining the total harmonic distortion (THD) at levels very close to 0% over the entire frequency range of operation. The...

En este artículo se presenta el desarrollo de un sistema solar tipo girasol con un sistema de seguimiento de máximo punto de potencia autoajustable (MPPT), el cual consta de un seguidor solar con paneles fotovoltaicos y un sistema de control MPPT que permite conocer las curvas (I-V), (P-V). La implementación del sistema Girasol con el seguimiento d...

Resumen: Este trabajo presenta la aplicación del método heurístico de “Recocido Simulado” (Simulated Annealing) en la optimización de los parámetros de operación de un convertidor multinivel monofásico en cascada con un esquema de modulación sinusoidal de múltiple portadora (MCSPWM). El objetivo es encontrar los parámetros de modulación MCSPWM más...

Los Sistemas Solares Fotovoltaicos Autónomos (SFVA), a pesar de sus ventajas, presentan algunos inconvenientes, siendo el principal de ellos la falta de un sistema controlador de energía para optimizar su funcionamiento. Este trabajo presenta el análisis y diseño de un Sistema de Control Supervisor de Acceso Remoto, SCSAR, para clientes con acceso...

En el presente artículo se muestra la simulación de un convertidor multinivel trifásico de fuente común de 15 escalones por línea, como variador de frecuencia para la alimentación de un motor de inducción. Este variador de frecuencia adopta modulaciones optimizadas en los primeros 50 armónicos; el algoritmo de optimización fue desarrollado en Matla...

This work presents a power converter prepared to easy modify its electrical connections in order to obtain all configurations possibilities of the cascaded multilevel power converter with four H-bridges. Allows to implement both sub-topologies: single CD source and separate DC source, with symmetrical and asymmetrical configurations until 81 voltag...

Este artículo trata sobre la optimización distorsión armónica total (THD) de un convertidor multinivel trifásico con fuentes independientes. Mediante la programación de un algoritmo genético que localice el punto de menor distorsión armónica. Como función objetivo se toma el THD de la tensión de fase, entérminos de los ángulos de conmutación en la...

This paper presents the development of a data acquisition system and the evaluation of the electromagnetic phenomena associated with power quality according to the IEEE Standard 1159-1992 and applied to the particular case of single-phase electrical power systems. The evaluation software is implemented in the Labview® professional software using a...

In this work a general index of power quality (PQ) is proposed based on the simulation of some of the phenomena that affect the power quality. Using wavelet transform and calculating the energy coefficients to obtain a characteristic pattern of each signal to calculate the PQ index. The proposed PQ index was compared with typical measurements pheno...

This paper describes the design and develop of a common source three-phase multilevel power converter, with five levels in the phase voltage and nine levels in the line voltages. The modulation is optimized using genetic algorithms that perform a selective harmonics elimination of the first 20 components to improve power quality. To validate, an in...

In this work, the mathematical modelling and simulation of some of the phenomena that affect the power quality is presented, Discrete Wavelet Transform is applied to obtain characteristic patterns of each signal. With these patterns several intelligent classifiers (neural networks and support vector machine) are trained and determine which of these...

En este trabajo se presenta una nueva metodología para el correcto diseño de transformadores utilizados en inversoresde potencia multinivel tipo fuente común. La metodología propuesta representa una solución a los problemas dedistorsión en la forma de onda, decaimiento de pulsos en la tensión y pérdida de rendimiento causada por el cálculodel trans...

This paper presents a comparative analysis of the H-bridge multilevel cascaded converters with common source and with independent source, and both with selective harmonic elimination (SHE). Two prototypes of nine levels of output voltage are implemented, which use a standard step modulation and optimized PWM modulation (using genetic algorithms). T...

This paper presents a new methodology for the correct design of transformers used in power multilevel inverters common source type. The proposed methodology represents a solution to the problems of distortion in the waveform, voltage drop and loss of efficiency caused by the miscalculation of the transformer using conventional methodology. To valid...

This paper deals with the evaluation of different bio-inspired algorithms techniques for reduction of harmonic distortion (THD) in pulse width modulation (PWM) of power inverters. A comprehensive study is performed, that identifies and develops biologically inspired optimization algorithms based mainly on tabu search, genetic algorithms (GA), parti...

Este trabajo se centra en la evaluación de diferentes técnicas de algoritmos bio-inspirados, que permitan reducir la distorsión armónica (THD) de la modulación de ancho de pulso (PWM) en inversores de potencia. Se realizó un amplio estudio que identifica y desarrolla algoritmos de optimización de inspiración biológica basados principalmente en la b...

A partir del conocimiento que se tiene del agotamiento de los recursos convencionales (productos fósiles) para el futuro (petróleo, carbón y gas), la necesidad de reducir las emisiones de gases nocivos en la atmósfera y las preocupaciones sobre el cambio climático, surgen los incentivos para el uso de energía renovable y un gran interés por este te...

This paper deals with the minimization of the harmonic distortion to improve the power quality by using 9 steps multilevel power converter, using genetic algorithms to optimized a multi-PWM modulation, and minimizing Total Harmonic Distortion (THD) to almost zero. A novel numerical technique is develop as the optimization approach to obtain a math...

This paper describes the design and implementation of an H bridge multilevel converter with independent sources and five levels in the output voltage waveform, operating at variable frequency and a low constant harmonic distortion (THD) independent of frequency. With the use of dsPIC technology the power inverter replicates a calculated modulation,...

This paper presents an improvement to the power quality from the design of the single-phase transformers for common source multilevel power inverters. The proposed methodology represents a solution to the problems of the waveform disturbance caused by the transformer calculation using the conventional methodology. Finally, a prototype was developed...

Presenta un estudio comparativo entre el Control Predictivo basado en el Modelo [MPC] y el control PID, en una planta piloto de temperatura. Se encontró que el control MPC presenta mejor comportamiento, con un tiempo de asentamiento de 1000 segundos y una sobre-elongación de 5 °C, y que el PID presenta un tiempo de asentamiento de 2000 segundos y u...

This project aims to conduct a comparative study of the Model Predictive Control [MPC] and the classical controller PID, over a pilot temperature plant. From the experimental results, was found that MPC has better behavior with a assessment time of 1000 seconds and a over shoot of 5°C, the assessment time of PID control was 2000 seconds and over sh...

This paper presents a mathematical model and simulation some electric power issues that affects power quality, applying the Discrete Wavelet Transform to obtain the energy distribution of the first 10th detail coefficients in order to process the data and obtain characteristic patterns from each signal. These signals patterns are used to train seve...

This paper presents the evaluation of the Total Harmonic Distortion (THD) of a single phase cascaded multilevel inverter optimized using the technique of Particle Swarm Optimization (PSO). The aim of this work is to improve the harmonic content of the inverter voltage output signal. The inverter operating parameters have been changed in terms of nu...

This paper describes a new strategy for pulsewidth modulation (PWM) optimized by a direct method and the application of genetic algorithms (GA) to minimize the harmonic content specifically the fifth and seventh harmonic of the total content, based on the minimum total harmonic distortion (THD). Described the development of the method, the guidelin...

En este artículo se presenta una estrategia para el reconocimiento de imágenes estáticas, específicamente de reconocimiento facial a través de una técnica novedosa y reciente de clasificación que se llama método Lamda (Learning Algorithm for Multivariable Data Analysis). La estrategia consta de tres etapas que conforman el modelo de reconocimiento...

This paper presents the design and implementation of a modular single phase multilevel inverter using the asymmetric cascade multilevel converter type. The converter output allows 7, 15 and 31 levels and use the step modulation strategy. The selective harmonic elimination (SHE) technique was used for the computation of the firing angles. All the re...