A5072929391- Perovskite Materials and Applications
- Photovoltaic System Optimization Techniques
- Energy Load and Power Forecasting
- Lightning and Electromagnetic Phenomena
- Electric Power System Optimization
- Chalcogenide Semiconductor Thin Films
- Electromagnetic Compatibility and Noise Suppression
- Optimal Power Flow Distribution
- Fault Detection and Control Systems
- Microgrid Control and Optimization
- solar cell performance optimization
- Machine Fault Diagnosis Techniques
- Concrete Corrosion and Durability
- High voltage insulation and dielectric phenomena
- Smart Grid Energy Management
- Energy Efficiency and Management
- Quantum Dots Synthesis And Properties
- TiO2 Photocatalysis and Solar Cells
- Conducting polymers and applications
- Electrostatic Discharge in Electronics
- Market Dynamics and Volatility
- Silicon and Solar Cell Technologies
- Energy, Environment, and Transportation Policies
- Power Quality and Harmonics
- Non-Destructive Testing Techniques
Universidad de Antioquia
2014-2023
Centro de Investigación y Desarrollo
2023
Centro de Información y Desarrollo de la Mujer
2023
Universitat Jaume I
2020-2021
Dirección de Investigación y Desarrollo
2018
The photovoltaic performance is conventionally defined at Standard Test Conditions (STC), considering mainly an irradiance of 1000 W/m2 and device temperature 25 °C. Nevertheless, outdoor conditions involve additional variables, including their transient behavior, affecting the performance. Therefore, measuring STC in tests not always possible. In order to estimate or other power rating such as Nominal Operating Cell Temperature (NOCT), this work translated target by combining three...
With the aim to determine photo-generated current, diode saturation ideality factor, shunt, and series resistances related one-diode model for p-i-n planar perovskite solar cells, reference cells with active area of approximately 1 cm2 efficiencies ranging between 4.6 12.2% were fabricated characterized at standard test conditions. To estimated feasible parameters, mean square error I-V curve data these circuital results minimized using a Genetic Algorithm combined Nelder-Mead method. When...
This article presents the outdoor and synthetic performance data concerning main electrical parameters estimated from I-V curve for three photovoltaic technologies (HIT, m-Si CIGS) weather conditions (irradiance, ambient panel temperature). Synthetic were generated by simulating in OpenModelica software impact of on device performance, considering an irradiance range between 50 1300 W/m
A general and straightforward way of preparing few-nanometer-sized well-separated MAPbIx Br3-x (MA=methylammonium) perovskite photosensitizers on the surface an approximately 1 μm thick mesoporous TiO2 photoanode was suggested through a two-step sequential deposition low-concentrated lead halides (0.10-0.30 m PbI2 or PbBr2 ) methylammonium iodide/bromide (MAI/MABr). When those nanoscale perovskites were incorporated as photosensitizer in typical solid-state dye-sensitized solar cells...
On the estimation of price elasticity electricity demand in manufacturing industry Colombia
The capacitance technique is the most straightforward and low-cost to trace I-V curve of photovoltaic (PV) modules. Nevertheless, sweep speed number samples measure depend on device under test (DUT), size, switching dynamic, lighting conditions, Etc. Therefore, two performance indexes were proposed evaluate quality. estimated from a circuital model considering transient charging process as function target irradiance levels parameters DUT tracer. In this way, range mitigate likelihood...
ResumenEn este artículo se presenta una metodología para estimar la curva de carga transformadores potencia utilizando redes neuronales artificiales.Para implementar propuesta utilizaron datos reales dos ubicados en diferentes zonas geográficas y con condiciones operación.La técnica estimación fue implementada históricos empresa Interconexión Eléctrica S.A (ISA).Para realizar predicción las curvas entrenó red neuronal usando MATLAB, cual adapta a tiempos diaria semanal.La permite un error...
Modelo para el pronostico del precio de la energia electrica en Colombia Resumen: En este trabajo se investigan los factores que determinan Mercado colombiano. Tambien lleva a cabo un ejercicio largo plazo precios transados bolsa energetica, proposito utilizamos tecnicas vectores correccion errores y enfoque redes neuronales. La conclusion mas relevante es dado ambiente optimista rodea economia colombiana proximos anos, tendran una tendencia al alza. Palabras clave: precio, demanda, oferta,...
Overvoltages on electrical power or telecommunications overhead lines due to nearby lightning strokes can cause faults and disturbances in electronic devices apparatuses connected them. It is important understand these induced overvoltages, because equipments with are sensitive such disturbances. In this paper, radiated electromagnetic fields caused by the return stroke evaluated transmission line engineering models, representing current through channel. Integral equations solved means...
An algorithm to detect inter-turn faults in induction motors based on the negative sequence impedance is presented this paper. The implementation through a digital prototype also explained and its results are tested using 3 Hp motor designed induce faults. It concluded that robustness of can incipient from five turns, it good tool for predictive maintenance motors.
ResumenEn este artículo se presenta una metodología para la ubicación óptima de Generación Distribuida (GD) usando un algoritmo genético híbrido.En caso función objetivo es reducción pérdidas.El propuesto incorpora red neuronal artificial evaluar adaptación y búsqueda local que permite al explorar espacio más amplio.La contribución principal del combinación técnicas metaheurísticas con inteligencia resolver problema optimización multi-modal no convexo.La propuesta probada en sistema 34...
ResumenSe realizó la predicción del precio de energía bolsa promedio mensual en el mercado eléctrico colombiano por medio un modelo redes neuronales no-lineal autorregresivo.Considerando como entradas exógenas: demanda, relación entre generación hidráulica-térmica, probabilidad Fenómeno El Niño y volumen útil diario energía; variable autorregresiva mensual.Para entrenamiento, validación pruebas se analizaron datos enero 2003 marzo 2014.Adicionalmente, efectividad fue probada con abril 2014...
There are many methodologies that, using the frequency response of a grounding system impedance, permit to get coefficients transfer function or electrical parameters specific circuit, that behave as equivalents system. In this paper in first part, and circuit were obtained simplex method optimize values minimize square error between objective software Gtierras. The results depend on selection initial (which change for every case evaluated) start process. This happens because can local...