scholarly journals Optimization Study of Parasitic Energy Losses in Photovoltaic System with Dual-Axis Solar Tracker Located at Different Latitudes

2019 ◽  
Vol 158 ◽  
pp. 302-308 ◽  
Author(s):  
Ming-Hui Tan ◽  
Tze-Koon Wang ◽  
Chee-Woon Wong ◽  
Boon-Han Lim ◽  
Tiong-Keat Yew ◽  
...  
Keyword(s):  
Photovoltaic System ◽  
Energy Losses ◽  
Optimization Study ◽  
Solar Tracker

scholarly journals Optimization of the Bi-Axial Tracking System for a Photovoltaic Platform

Energies ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 535
Author(s):  
Cătălin Alexandru
Keyword(s):  
Computer Aided Design ◽  
Tracking System ◽  
Control Device ◽  
Computer Applications ◽  
Optimization Study ◽  
Solar Tracker ◽  
Diurnal Movement ◽  
Multi Body ◽  
Aided Design ◽  
And Control

The article deals with the optimization of the azimuthal tracking mechanism for a photovoltaic (PV) platform, which uses linear actuators as actuation elements for both movements (diurnal and elevation). In the case of diurnal movement, where the platform’s angular field of orientation is large, a mechanism with a relatively simple structure is used for amplifying the actuator’s stroke and avoiding the risk of the system locking itself (by limiting the values of the transmission angle). The optimization study targets the mechanical device, the control device, and the bi-axial tracking program (embodied by the laws of motion in time for the platform’s diurnal and elevation angles) with the purpose of obtaining a high input of solar radiation, with a minimal energy consumption to achieve tracking. The study is carried out by using a virtual prototyping platform, which includes Computer Aided Design (CAD), Multi-Body Systems (MBS), and Design for Control (DFC) computer applications. The mechanical and control devices of the solar tracker are integrated and tested in mechatronic concept. The simulations’ results, which were performed for a set of representative days throughout the year, prove the effectiveness of the proposed design.

Optimization study of solar farm layout for concentrator photovoltaic system on azimuth-elevation sun-tracker

Solar Energy ◽  
2020 ◽  
Vol 204 ◽  
pp. 726-737
Author(s):  
Li-Voon Oon ◽  
Ming-Hui Tan ◽  
Chee-Woon Wong ◽  
Kok-Keong Chong
Keyword(s):  
Photovoltaic System ◽  
Optimization Study

Optimasi Dual Axis Tracking Untuk Solar Cell Berbasis Imperialis Competitive Algorithm (ICA)

2019 ◽  
Vol 10 (1) ◽  
pp. 48-51
Author(s):  
Mohammad Hasib Al Isbilly ◽  
Tubagus Fahm ◽  
Markhaban Siswanto
Keyword(s):  
Optimization Design ◽  
Controller Design ◽  
Elevation Angle ◽  
Vertical Axis ◽  
Photovoltaic System ◽  
Tropical Country ◽  
Fossil Energy ◽  
Competitive Algorithm ◽  
Solar Tracker ◽  
The Right

The use of fossil energy as an electric fuel causes the earth to experience global-warming. As a tropical country, Indonesia has great potential to develop solar energy as a substitute for fossil energy. Increased efficiency in capturing sunlight will further optimize the work of the Solar Power Plant (PLTS). One way that can be done is by making a solar tracker so that the Solar Panel can follow the direction of the sun's motion. Optimization Design The solar tracker uses dual axis using Proportional Integral Differential (PID) control tuned with the Imperialis Competitive Algorithm (ICA), which is expected to be able to get the right angle between the yaw and Pitch with Azimuth and Elevation Angle. The PID-ICA controller design is done using matlab software. For vertical and horizontal rotary axes it is expected to obtain the best PID-ICA constant, which in turn will affect the performance and optimization of the photovoltaic system. The best optimization results using ICA-based PID with a settling time value of 0.0906 s on the horizontal axis and 0.094 s on the vertical axis

scholarly journals Comparativa de la eficiencia entre un sistema fotovoltaico con seguimiento solar y un sistema fotovoltaico fijo / Comparison between a photovoltaic solar tracker efficiency and a fixed photovoltaic system

2018 ◽  
Vol 7 (13) ◽  
pp. 105-129
Author(s):  
Jorge Arturo Pelayo López ◽  
Alfredo Luna Soto ◽  
Francisco Bernabe Ramos ◽  
Benjamín Guzmán Flores
Keyword(s):  
Photovoltaic System ◽  
El Sistema ◽  
Solar Tracker

Para generar de forma eficiente energía eléctrica utilizando paneles fotovoltaicos es indispensable que estos sean instalados de forma correcta. Para ello, se pueden implementar sistemas de control de posicionamiento (seguidor solar) mediante un algoritmo de búsqueda del punto máximo de energía, lo cual sirve para mejorar la eficiencia del sistema. Por tal motivo, en el presente trabajo se analiza el diseño y la construcción de un sistema fotovoltaico con seguimiento solar de dos ejes. El objetivo es determinar la eficiencia de este sistema frente a uno estático. El seguidor solar construido cuenta con celdas independientes que actúan como sensores y alimentan a los motores encargados de girar el panel fotovoltaico tanto en el eje vertical como en el horizontal. Para la adquisición de la energía generada por los dos sistemas de paneles solares se utilizó la tarjeta Arduino Nano 3.0 y diversos módulos. Los resultados de las pruebas realizadas se examinaron mediante el programa computacional SigmaPlot y la comparativa de grupos (ANOVA) de una vía. Asimismo, se realizó una prueba de rangos múltiples, que emplea el método de comparación múltiple de medias de Tukey.Luego se confrontaron los datos recabados durante un periodo de 29 días. Los resultados demostraron que en ese lapso la eficiencia promedio alcanzada por el sistema con seguimiento solar fue de 33 %, mientras que con el sistema fijo fue de 26.28 %. Además, se observó que, durante las primeras horas de cada día, el sistema fotovoltaico fijo logró generar más energía eléctrica que el sistema fotovoltaico con seguimiento solar.

scholarly journals Optimizing the control system of a single-axis sun tracking mechanism

2018 ◽  
Vol 184 ◽  
pp. 01002 ◽  
Author(s):  
Cătălin Alexandru
Keyword(s):  
Control System ◽  
Concurrent Engineering ◽  
Motion Tracking ◽  
Solar Panel ◽  
Energetic Efficiency ◽  
Mechatronic System ◽  
Optimization Study ◽  
Solar Tracker ◽  
Analysis System ◽  
Engineering Concept

The work shows the optimization of the control system for the single-axis solar tracker that equips a solar panel, with the aim to increase the energetic efficiency of the system by maximizing the quantity of incident solar radiation that is captured - absorbed by the panel. The single-axis solar tracker is driven by a linear actuator, the optimization study intending to determine the optimal configuration (in terms of tuning factors) of the controller, which is a PID (Proportional-Integral-Derivative) device, in order to accurately achieve the motion (tracking) law imposed on the solar panel. The solar tracker was approached as a mechatronic system, the mechanical device (developed in ADAMS - Automatic Dynamic Analysis of Mechanical Systems) and the control system (developed in EASY5 - Engineering Analysis System) being integrated at the level of virtual prototype, in the concurrent engineering concept.

scholarly journals Evaluation of a hybrid system to improve the electrical efficiency in photovoltaic panels

2018 ◽  
Vol 61 ◽  
pp. 00013
Author(s):  
Juan C Valencia ◽  
Mauricio Diaz ◽  
Carlos Giraldo
Keyword(s):  
Hybrid System ◽  
Cooling System ◽  
Average Power ◽  
Photovoltaic System ◽  
Total Power ◽  
Solar Panels ◽  
Electrical Efficiency ◽  
Solar Tracker ◽  
Valle Del Cauca ◽  
Electric Loads

This project shows a photovoltaic hybrid system (PHS) that follows the sun using electronic and mechanic devices and reduces the solar panel’s temperature with water in order to increase the energy obtained. The system was designed and implemented with a 1-axis solar tracker system and a water cooling system. PHS allows solar radiation beams to fall almost perpendicularly and decreases the temperature of the solar panel. Finally, its performance is compared against a traditional fixed photovoltaic system (FPS) oriented at 15° facing south. Experiments were made during only seven days in a year between December 1st and December 19th of 2017 in Guadalajara de Buga, Valle del Cauca, Colombia. Tests consisted of using the same electric loads at 20%, 40% and so on until 100% of the total power capacity of the solar panels. Results points out that electrical efficiency of the PHS increased 5.03% compared to the FPS on the same environmental conditions. Finally, PHS shows daily additional average power between 37% and 40% when it is loaded with electric loads at 80% and 100%.

Optimal Design of the Mechanical Device for a Photovoltaic Tracking Mechanism

2012 ◽  
Vol 186 ◽  
pp. 114-123 ◽  
Author(s):  
Monica Alina Ionită ◽  
Cătălin Alexandru
Keyword(s):  
Geometric Constraints ◽  
Photovoltaic System ◽  
Mechanical Device ◽  
Software Environment ◽  
Design Constraint ◽  
Renewable Energy Systems ◽  
Device Model ◽  
Optimization Study ◽  
Driving Source ◽  
Positive Effect

Increasing the conversion efficiency of the solar energy into electricity is one of the most addressed topics in the field of renewable energy systems. In this paper, the pseudo-azimuthal tracking mechanism for a PV platform it was selected for presentation. The study is focused on the optimization of the mechanical device model of the tracking mechanism (developed with the MBS software environment ADAMS of MSC). The optimization is based on the parametrization of the model by using the design points that define the locations of the geometric constraints (i.e. the joints). The objective of the optimization is to minimize the motor force developed by the driving source, which is a linear actuator. In addition, a design constraint is used to limit (restrict) the value of the pressure angle. The optimization study leads to the minimization of the energetic consumption during tracking, with positive effect on the energy balance of the photovoltaic system with sun tracker.

The Time-Variant Degradation of a Photovoltaic System

2012 ◽  
Vol 135 (2) ◽  
Author(s):  
A. Charki ◽  
R. Laronde ◽  
D. Bigaud
Keyword(s):  
Weibull Distribution ◽  
Environmental Conditions ◽  
Energy Production ◽  
Meteorological Data ◽  
Photovoltaic System ◽  
Energy Losses ◽  
Time To Failure ◽  
Pv System ◽  
Pv Systems ◽  
Pv Modules

This article presents a method developed for carrying out the energy production estimation considering the energy losses in different components of a photovoltaic (PV) system and its downtime effect. The studied system is a grid-connected photovoltaic system including PV modules, wires, and inverter. PV systems are sensitive to environmental conditions (UV radiation, temperature, humidity) and all components are subjected to electrical losses. The proposed method allows obtaining the production of photovoltaic system and its availability during a specified period using meteorological data. The calculation of the production takes into account the downtime periods when no energy is delivered in the grid during this period. The time-to-failure and the time-to-repair of photovoltaic system are considered following a Weibull distribution. This method permits to have a best estimation of the production throughout the lifetime of the photovoltaic system.

Structural Analysis of a Tracking Photovoltaic System with a Pedestal Solar Tracker

2014 ◽  
Vol 493 ◽  
pp. 361-366
Author(s):  
Chih Kuang Lin ◽  
Chen Yu Dai
Keyword(s):  
Solar Radiation ◽  
Structural Integrity ◽  
Natural Frequencies ◽  
Elevation Angle ◽  
Photovoltaic System ◽  
Structural Deformation ◽  
Pv System ◽  
Element Analysis ◽  
Solar Tracker ◽  
The Given

The structural integrity and deformation-induced misalignment of solar radiation for a tracking photovoltaic (PV) system under self-weight is investigated using a finite element analysis (FEA) approach. Gravity is applied to calculate the stress distribution and structural deformation. Misalignment of solar radiation induced by structural deformation is also calculated. Moreover, to avoid damages caused by resonance, natural frequencies of vibration for the given tracking PV system are also determined. Strain changes are measured experimentally at two selected locations in the given solar tracker during field operation for comparison with the simulation results. A reasonable agreement between the simulations and experimental measurements is found such that the constructed FEA model is validated to be effective in assessment of the structural integrity for PV systems under self-weight. No structural failure is predicted for all components in the given solar tracker under the given loading condition according to the von Mises failure criterion. An agreement in the trend of variation of misalignment and resultant displacement of PV modules is found. Considering the effect of self-weight only, the maximum misalignment of solar radiation is of 0.275o at elevation angle of 45o when rotating the solar tracker from 0o to 75o. It is expected that such a misalignment value will not cause a significant degradation of power generation for a PV system. The range of natural frequencies of the first six vibration modes for the given PV system is from 3.85 Hz to 11.4 Hz.

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