A Solar Tracking System Based on Local Solar Time Integrated to Photovoltaic Systems

2018 ◽  
Vol 140 (2) ◽  
Author(s):  
Luiz A. S. Ferreira ◽  
Hermes J. Loschi ◽  
Abel A. D. Rodriguez ◽  
Yuzo Iano ◽  
Douglas A. do Nascimento
Keyword(s):  
Power Systems ◽  
Tracking System ◽  
Monitoring And Control ◽  
Local Solar Time ◽  
Solar Time ◽  
Pv Systems ◽  
Solar Tracking ◽  
Pv Modules ◽  
A Prospective Study ◽  
Solar Generation

The performance of photovoltaic (PV) systems is highly influenced by the tilt angle of PV modules and the incidence of global solar irradiance, which may change the solar to electrical conversion efficiency. Some authors have addressed these uncertainties arising from PV solar generation by using mechanisms and methods in which solar tracking systems are integrated to PV systems. Since the advent of the internet of things (IoT), this solar tracking strategy has yet to meet the requirements of scalable distributed power systems that can seamlessly support the PV solar generation, mainly for remote monitoring and control. In this context, this paper aims at developing a prospective study devoted to examine fundamental concepts to implement solar tracking algorithms based on local solar time by using embedded technology from the IoT platform. Preliminary results evidenced an improvement of up to 38% in power generation performance for algorithm-driven PV modules compared to fixed PV modules.

A Solar Automatic Tracking System Design Based on FPGA

2012 ◽  
Vol 608-609 ◽  
pp. 70-73
Author(s):  
Jun Feng Zhu ◽  
Yue Wen Liu ◽  
Wen Bing Liu
Keyword(s):  
Power Systems ◽  
System Design ◽  
Tracking System ◽  
Energy Utilization ◽  
Solar Panels ◽  
Automatic Tracking ◽  
Precise Control ◽  
Solar Tracking ◽  
Solar Energy Utilization ◽  
Tracking Devices

In order to improve the solar energy utilization, in the respect of technology, we should perfect solar tracking devices, realization of the sunlight is always vertical to the solar panels. This paper is to design a kind of solar automatic tracking system. Design adopts the traditional photoelectric tracking method, with the FPGA as the core, and by using the methods of scheduled monitoring, achieve precise control of stepping motor, thereby promoting the solar panels rotate remains vertical to the sun, which can effectively improve the efficiency of solar power systems.

Assessment of the Energy Gain of Photovoltaic Systems by Using Solar Tracking in Equatorial Regions

2018 ◽  
Vol 140 (3) ◽  
Author(s):  
Freddy Ordóñez ◽  
Carlos Morales ◽  
Jesús López-Villada ◽  
Santiago Vaca
Keyword(s):  
Tracking System ◽  
Solar Irradiation ◽  
Pv Systems ◽  
Pv Array ◽  
Solar Arrays ◽  
The North ◽  
Operation Conditions ◽  
Solar Tracking ◽  
The One ◽  
The Impact

Solar tracking is a major alternative to increase the electric output of a photovoltaic (PV) module, and therefore, improves the global energy collected by PV systems. Nonetheless, solar-tracking PV systems require more resources and energy than static systems. Additionally, the presence of cloudiness and shadows from near buildings may reduce the profitability of these systems. Therefore, their feasibility must be assessed in order to justify their application. In equatorial latitudes, the sun's movement through the sky is in the zenith East–West axis. It may be advantageous, since the best tilt in such latitudes is the horizontal. In these terms, the main objective of this research is to numerically assess the performance of a PV array with solar tracking and under typical operation conditions in equatorial latitudes. For this, the assessment of the solar resource in Quito was analyzed in first place. Then, the comparison between three solar arrays was studied to evaluate the feasibility of solar tracking (two-axes tracking, horizontal one-axis tracking, and horizontal fixed). Additionally, the impact of cloudiness and shadows in the system was analyzed. The results showed that the horizontal one-axis tracking is the most beneficial option for equatorial latitudes as the two-axes tracking system only surpasses the gains of the one-axis tracking marginally. Furthermore, the use of a strategy to place the PV modules horizontally in cloudy conditions seems to be marginally advantageous. Finally, the shadows created from neighboring buildings in the East and West of the system may reduce considerably the solar irradiation on the PV-array (not the ones in the north and south).

Comparison of Solar Tracking and Fixed-Tilt Photovoltaic Modules in Lodz

2018 ◽  
Vol 140 (2) ◽  
Author(s):  
Paulina Sawicka-Chudy ◽  
Maciej Sibiński ◽  
Marian Cholewa ◽  
Ryszard Pawełek
Keyword(s):  
Alternative Energy ◽  
Tracking System ◽  
High Growth ◽  
Point Of View ◽  
Solar Panels ◽  
Pv Systems ◽  
Alternative Energy Sources ◽  
Solar Tracking ◽  
Low Efficiency ◽  
High Production Cost

The world energy consumption has exhibited high growth over the last several decades. Alternative energy sources like photovoltaic (PV) systems generate electricity, reduce pollution air, and have little environmental impact. The commonly used fixed-tilt solar panels, however, have low efficiency and high production cost. Thus, it takes a long time to obtain a return on the investment. Solar trackers increase the efficiency of PV systems and are therefore more attractive from a financial point of view. In order to design tracking systems that will be efficient, it is necessary to analyze the results during various periods during the year and over their lifespan. Thus, we performed a comparative study between fixed-tilt panels and the tracking system installed in Lodz, Poland. Fixed-tilt panels are at normal to the Earth's surface (90 deg from horizontal plane) and are attached to a building façade, azimuth 180 deg (S direction) with 15 cm ventilation gap so slight efficiency drop may be presumed. We performed short- and long-term analyses of the solar tracking and fixed-tilt systems, which allowed us to conclude that the panels tracking the sun had an additional gain of energy during the year as compared to the fixed-tilt panels. During some months, however, the solar tracking system did not produce as much energy as the fixed-tilt, vertically positioned panels. These results might be useful in designing and constructing solar tracking PV systems.

scholarly journals Structural and Mechanical Design of Solar Tracking System

2019 ◽  
Vol 8 (6S3) ◽  
pp. 1425-1431
Keyword(s):  
Mechanical Design ◽  
Tracking System ◽  
Worm Gear ◽  
Power Demand ◽  
Pv Panel ◽  
Backup System ◽  
Solar Tracking ◽  
Mandatory Requirement ◽  
Pv Modules ◽  
Charge Mode

This project deals with the PV Panel arrangement and its moving technique, auto tracking elements and its design. Domestic and commercial sectors are using battery backup system to challenge the power cut. Power demand is drastically increasing unproportionally to the supply. Hence, tapping of electricity from sun is mandatory requirement. A set of PV modules are integrated to the battery backup system. The charge mode selector will assign priority to use solar energy for battery charging / usage. In this system, the sunny days are used to tap out the energy. The efficiency of the PV cells are small only but by using auto tracking system the maximum possible energy can be tapped. Worm gear configurations in which the gear can not drive the worm are said to be self-locking.In this tracking arrangement,the worm gear riveted with PV array tracks the solar radiation.

scholarly journals Effect of Single Axis Solar Tracking System on the Performance of Photovoltaic System: A Comparative Experimental Study

2021 ◽  
Vol 12 (2) ◽  
pp. 1746-1751
Author(s):  
Ravindra Pratap Singh
Keyword(s):  
Experimental Study ◽  
Fossil Fuels ◽  
Technological Development ◽  
Tracking System ◽  
Clean Energy ◽  
Photovoltaic System ◽  
Solar Irradiation ◽  
Pv Systems ◽  
Solar Tracking ◽  
Cost Efficient

Nowadays the demand for energy increased rapidly duo to escalating population and global technological development. Consequently, the focus on non-conventional energy sources is increasing rapidly due to change in climates and unhealthy environment caused by fossil fuels. Solar energy is vital to fulfill this growing need of clean energy. The performance of the photovoltaic (PV) technology used for capturing sun’s radiation is directly affected by solar irradiation. The optimum performance of the PV systems would be possible if the solar panel is always orientated towards the direction of maximum radiations of sun. Hence, in order improve the performance of the PV, tracking of maximum radiation of the sun is extremely important. In this experimental study, solar tracking is done using a single axis solar sun tracker which not only provides accurate but also cost efficient solar sun tracking in comparison with an existing stationary system of same capacity. The results show that a single axis solar tracking systems have generated approximately 28.3% more compared to static systems and is also found to be more economic than a solar tracking system which uses microcontroller.

scholarly journals Energy Yield of Tracking PV Systems in Jordan

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
A. Al Tarabsheh ◽  
I. Etier ◽  
A. Nimrat
Keyword(s):  
Tracking System ◽  
Global Radiation ◽  
System Optimization ◽  
Energy Yield ◽  
Pv System ◽  
Pv Systems ◽  
Pv Modules ◽  
Inclination Angles ◽  
Simulation Results ◽  
The One

This paper analyzes the energy yield of photovoltaic (PV) modules mounted on fixed tilt, one-axis, and two-axis tracking system towards maximizing the annual energy production. The performance evaluation of the proposed design of the tracking systems is carried via simulating the global radiation averages using METEONORM software and depicting the simulation results in figures using MATLAB software. The one-axis system is simulated by either fixing the azimuth angle while optimizing the inclination angles or fixing the inclination angle while optimizing the azimuth angles; simulation results show an increase in energy yield of 5.87% and 20.12% compared to that of fixed tilt system, respectively. In the two-axis system, optimization of both azimuth and inclination angles is carried out simultaneously which resulted in 30.82% improvement in energy yield. Therefore, 30% improvement in energy yield is directly reflected as saving in PV system cost due to reduction of the PV modules surface area.

scholarly journals Dual-Axis Solar Tracking System for Maximum Power Production in PV Systems

2016 ◽  
Vol 12 (2) ◽  
pp. 42
Author(s):  
Muhd Ikram Mohd Rashid ◽  
MF Akorede ◽  
LZ Chao ◽  
Nik Fadhil Nik Mohammed
Keyword(s):  
Tracking System ◽  
Power Production ◽  
Maximum Power ◽  
Pv Systems ◽  
Solar Tracking

scholarly journals Grid-Connected Photovoltaic Systems with Single-Axis Sun Tracker: Case Study for Central Vietnam

Energies ◽  
2020 ◽  
Vol 13 (6) ◽  
pp. 1457 ◽  
Author(s):  
Xuan Cuong Ngo ◽  
Thi Hong Nguyen ◽  
Nhu Y Do ◽  
Duc Minh Nguyen ◽  
Dai-Viet N. Vo ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Tracking System ◽  
Energy Gain ◽  
Linear Actuator ◽  
Net Energy ◽  
Total Energy Consumption ◽  
Pv System ◽  
Pv Systems ◽  
Solar Tracking ◽  
Central Vietnam

Recently, the demand for small grid-connected photovoltaic (PV) systems has been rapidly increasing; this is due to the reduction in the costs of grid-connected storage systems as compared to those of the stand-alone ones. Notably, the performance of the solar tracking system is not only depending on the types but also the region that they are set up and used. To understand how solar tracking systems work globally, we need to know their performance in each country and even the different parts of a country. In this study, two grid-connected PV systems with 250 W solar modules were used to investigate the efficient improvement of a single-axis sun tracking system in Central Vietnam. First, a mechanical tracking device with a linear actuator and a controller was designed and then its performance was comprehensively investigated with a grid-connected PV system. In addition to evaluating the energy gain by the tracking system, this study also considered the energy consumption of the linear actuator with its controller and a small grid-connected PV system; this has generally been omitted in previous works. Experimental results indicate that the total energy consumption of the tracking system was approximately 2–8% of the energy generated by the grid-connected PV system. The maximum overall energy generation was confirmed to have increased by up to 30.3% on a sunny day upon using the proposed tracking system; further, the net energy gain by using the sun tracker was ascertained to be 15.2% in average weather conditions. Based on the success of this work, we will keep experimenting with other parts of Vietnam. Also, we will collaborate with colleagues in other countries to create a guideline for understanding and using the solar tracker regionally and globally.

scholarly journals Design and Fabrication of Solar Tracking System

2021 ◽  
Author(s):  
S. S Gaikwad ◽  
V. B Wagaj ◽  
R. H Kadam ◽  
V. M Ghaytidak ◽  
Y. B Kale
Keyword(s):  
Renewable Energy ◽  
Solar Energy ◽  
Solar Power ◽  
Tracking System ◽  
Solar Panels ◽  
Renewable Energy Resources ◽  
Pv Systems ◽  
Road Signs ◽  
Solar Tracking ◽  
Important Means

Photovoltaic solar technology may be a multi-billion dollar clean, green and renewable energy industry, powering everything from road signs to entire cities. Solar cells themselves are essentially big PN-junction semiconductors, there’s plenty of advanced and rapidly evolving electronic engineering required to optimize the energy transfer from the roof top to the grid. This course covers the Fundamentals of grid-connected PV systems, with the aim of providing engineers with an honest overview of the technologies, topologies and electronics that structure such systems. Solar energy is extremely important means of expanding renewable energy resources. Solar may be a nonconventional source of energy, considering this we've developed solar panels in order that we will fulfil our electricity need. The problem above are often solved by our system by automatic tracking the solar power. The system architecture contains a LDR sensor senses max solar power. It is being given to the Microcontroller through the ADC. In which digitizes the LDR output. The Motor is employed to rotate the LDR to sense the max solar energy. A Solar Tracker is essentially a tool on to which solar panels are fitted which tracks the motion of the sun across the sky ensuring that the utmost amount of sunlight strikes the panels throughout the day. After finding the daylight, the tracker will attempt to navigate through the trail ensuring the simplest sunlight is detected. The objective is to development of an automatic solar tracking system whereby the system will caused solar panels. It will keep aligned with the daylight in order to maximize in harvesting solar power.

scholarly journals Research and Design of Photoelectric Solar Tracking System

2012 ◽  
Vol 4 ◽  
pp. 115-120
Author(s):  
Tian Hua Li ◽  
De Qing Xiang
Keyword(s):  
Power Systems ◽  
Tracking System ◽  
Solar Heating ◽  
Energy Utilization ◽  
Light Collection ◽  
Heating Systems ◽  
Solar Tracking ◽  
Solar Energy Utilization ◽  
The Cost ◽  
Research And Design

In this paper, a set of solar tracking system based on the photosensitive resistance has been studied and designed from the perspectives of practicality, economy and reliability. The device is simple and reliable. The sensitivity is high and the cost is low. It is suitable for the solar tracking of various solar energy utilization devices such as the medium and small solar light collection systems, the solar power systems, the solar heating systems and some others.

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