Analysis of the influence of the angle of inclination of solar panels on the operation of the grid using renewable energy sources

2020 ◽  
Vol 23 (2) ◽  
pp. 70-76
Author(s):  
D. OSTRENKO ◽  
◽  
Oleksandr Kollarov ◽  

When considering the operation of the solar panel and performing modeling of its operation in [1], such input parameters as the level of solar insolation (the amount of light coming to the SP) and the value of the outside temperature on the solar panels themselves were taken into account. However, such an important parameter as the angle of inclination of the solar panels was not taken into account in such modeling. The value of this parameter takes into account, of course, the level of solar insolation, because the level of light that enters the JV directly depends on the angle at which they are located. However, it has not been considered that sensors (or luxmeters) for measuring illumination may be located at an angle other than the angle of inclination of the solar panel or, more importantly, the solar panels themselves due to their design features may not receive enough solar radiation. can take into account light sensors. This possibility exists at an angle of inclination close to zero, ie at dawn and sunset. This article is designed to take into account the influence of the angle of inclination of solar panels through the use of empirical dependencies and to test the theoretical foundations that have been formed in previous articles [1-4]. This article demonstrates the practical significance of taking into account the value of the angle of inclination of solar panels in the calculations of the photovoltaic plant. To do this, we first analyzed the state of the issue and the available methods of changing the angle of inclination in the operation of the electrical network with photovoltaic panels. Secondly, the influence of the geometric arrangement of the panels was taken into account when constructing the mathematical model. Studies have concluded that the optimal method of controlling the angle of inclination of photovoltaic panels is its seasonal change. After all, the application of this method increases the power output of RES with an average of 35% in summer and 10% in winter compared to fixed panels and does not require additional and sometimes very expensive equipment compared to the dynamic change of angle during the day. Further use of the proposed method will bring the values obtained during the simulation to the practical ones obtained when working with the installation.

Sensors ◽  
2022 ◽  
Vol 22 (2) ◽  
pp. 483
Author(s):  
Tomasz Czarnecki ◽  
Kacper Bloch

The subject of this work is the analysis of methods of detecting soiling of photovoltaic panels. Environmental and weather conditions affect the efficiency of renewable energy sources. Accumulation of soil, dust, and dirt on the surface of the solar panels reduces the power generated by the panels. This paper presents several variants of the algorithm that uses various statistical classifiers to classify photovoltaic panels in terms of soiling. The base material was high-resolution photos and videos of solar panels and sets dedicated to solar farms. The classifiers were tested and analyzed in their effectiveness in detecting soiling. Based on the study results, a group of optimal classifiers was defined, and the classifier selected that gives the best results for a given problem. The results obtained in this study proved experimentally that the proposed solution provides a high rate of correct detections. The proposed innovative method is cheap and straightforward to implement, and allows use in most photovoltaic installations.


2019 ◽  
Vol 1 (1) ◽  
pp. 14
Author(s):  
Rizal Akbarudin Rahman ◽  
Aripriharta Aripriharta ◽  
Hari Putranto

The use of renewable energy as a source of electrical energyincreases every year. Unfortunately, Indonesia does not have manypower plants that utilize renewable energy sources. The mostpotential renewable energy in Indonesia is the sunlight with the helpof solar panels that converts solar energy into electrical energy.However, the environment could affect the solar panel module andin turn, affect the performance of solar panels or the generatedelectric energy. This research calculated the performance of solarpanels with a single-diode model using the Five Parameters methodthat required solar panel module specification data, the totalradiation absorbed by the solar panel module, and the temperatureof the environment. The Five Parameters method is a methodmodeled after solar panel module performance in the form of thesingle-diode equivalent circuit. The Five Parameters method isreliable in predicting the energy produced by the solar panels whenthe input data is limited. The results for using the Five Parametersin monocrystalline solar panels were Isc = 1.827 A, Imp = 0.662 A,Voc = 18.221 V, Vmp = 15.019 V, Pmp = 9.955 W. And the results inpolycrystalline solar panels were Isc = 1.926 A, Imp = 0.686 A, Voc =17.594 V, Vmp = 14.166 V, Pmp = 9.722 W. Based on the results; itwas concluded that the most efficient and optimised types of solarpanels on natural conditions in Sendang Biru Beach was themonocrystalline solar panel because it produced electrical outputpower of 9.955 W. Therefore, there could be a manufacturer ofsolar energy power plants to reduce the cost of electricity in thecoastal area, such as in Sendang Biru Beach.


Energies ◽  
2019 ◽  
Vol 12 (13) ◽  
pp. 2481 ◽  
Author(s):  
Cao ◽  
Esangbedo ◽  
Bai ◽  
Esangbedo

Selection of the most appropriate contractor for the installation of solar panels is essential to maximizing the benefit of this renewable, sustainable energy source. Solar energy is one of the 100% renewable energy sources, but implementation may not be very simple and cost-effective. A key phase in the implementation of renewable energy is the evaluation of contractors for the installation of solar panels, which is addressed as a multi-criteria decision-making (MCDM) problem. A new hybrid method is proposed that combines the stepwise weight analysis ratio assessment (SWARA) and full consistent method (FUCOM) weights that are represented as grey numbers used with traditional grey relational analysis (GRA) and evaluation based on distance from average solution (EDAS) methods. The ranking of contractors by both methods is the same, which confirmed the results presented in this research. The use of the grey SWARA-FUCOM weighting method combined with the GRA and EDAS methods increased the decision-makers’ (DMs) confidence in awarding the installation of the solar panel energy system to the top-ranked contractor.


2018 ◽  
Vol 61 ◽  
pp. 00005
Author(s):  
Chawki Ameur menad ◽  
M. Bouchahdane ◽  
Rabah Gomri

Every electrical system in solar panel can fail during electrical faults. In this incidence, high fault current can occur. Such current must be interrupted by a protective system. The research was supported by experimental tests. In work conditions close to real, the numerical relay REF542plus was tested for both instantaneous and extremely inverse definite minimum time IDMT over-current protection functions with the help of CMC 365 injection and test equipment associated to Test Universe software. Protecting hybrid solar panels generating by different renewable energy sources for hydrogen production from over-current is very important for improving the energy efficiency in one hand, and securing the function in critical condition from damage of the solar cells in second hand. The contribution of this research is controlling the over-current in the solar panel for securing the continuation of the hydrogen production from renewable energy sources in short time. The obtained results allowed the observation of the relay’s behavior when subjected to certain faults; where the solar panel keeps producing the hydrogen.


2021 ◽  
Vol 57 (1) ◽  
pp. 37-44
Author(s):  
O. Drozd ◽  
L. Scherbak

This paper is dedicated to the research of solar energy issues, namely to increase the efficiency of solar panels and to compare the performance of solar panels in different configurations. The author researches and compares the performance of solar panels with and without trackers. The sun is an inexhaustible source of energy that mankind has yet to appreciate. Solar energy is the kinetic energy of radiation (mainly light) generated by thermonuclear reactions in the bowels of the sun. Solar energy is one such alternative, the neglect of which will in the near future lead to catastrophic consequences for humanity. Solar energy is a progressive method of obtaining various types of energy through solar radiation. Solar energy is one of the most promising and dynamic renewable energy sources (RES). Each year, the increase in commissioned capacity is approximately 40-50%. In the last fifteen years alone, the proportion of solar electricity in the world has exceeded the 5% mark. To increase the efficiency of solar panels, designers and engineers are developing new devices and devices, one of which is a solar tracker. A solar tracker is a device that allows you to control the movement of the sun across the sky, as well as move the solar panel to the position where the absorption of sunlight is most effective. After the conducted experiment , calculations an comparison we can see the next results. Without the solar tracker our panel generated maximum power in 2.4 Watt. After the solar tracking system integration, our panel generated almost 20 (19.8) Watt of power! After this comparison we can tell that the generated power increase in 8.25 Watts. We can also admit that the amount of generated power depends on light intensity. But solar panels are the most effective when the solar beam falls perpendicular to solar cell and solar panel is at an angle of 75 – 85 degrees


Author(s):  
N. Shibane ◽  
Nnamdi Nwulu ◽  
Eustace Dogo

Renewable energy sources are currently regarded as viable options for stabilizing the energy crisis globally as well as addressing global warming challenges. Solar energy is the most promising and sustainable energy source as compared to other renewable energy sources such as coal, nuclear, wind, gas, and hydro energy. The increasing demand for solar panels should be reason enough to investigate ways in which we can increase their efficiency as much as possible. Dust, dirt, and bird dropping are major factors that can affect the performance of solar panel systems. This work presents the development of a solar panel cleaning system that automatically detects dust particles and cleans the solar panel to ensure the continues efficiency of the solar system is at an optimal level. The system comprises of five subsystems: dust sensing, water pumping, microcontroller, cleaning mechanism, and the power system. Tests carried out on the system shows its quick response to signals and effectiveness in cleaning the solar panel whenever dust particles are detected.


2021 ◽  
Vol 2107 (1) ◽  
pp. 012001
Author(s):  
M F A Razak ◽  
M Z Hasan ◽  
J A M Jobran ◽  
S A S Jamalli

Abstract Solar photovoltaic technologies are worldwide renewable energy sources. However, the elevated temperature in solar panels is one explanation for reducing the performance of solar systems. An active air cooling system can be mounted on the back of the solar panel to avoid this phenomenon. In order to ensure that the solar system runs smoothly, monitoring needs to be done at each place where this solar energy system is located. The Internet of Things (IoT) is a network of linked, internet-accessible physical objects. It is the technology of the next generation that will soon be extended to society. The IoT refers to the system or ecosystem in which devices are connected to the Internet in real-time. Based on IoT, a smartphone can track the temperature of the solar panel anytime and anywhere. To overcome this problem, a Blynk IoT system monitors solar power status and controls the cooling air system. NodeMCU was the main microcontroller used in IoT systems. The IoT framework can be implemented easily and efficiently using NodeMCU. The experimental results of this project will monitor the performance of the solar panel and monitor it.


2021 ◽  
Author(s):  
Madhura J Jagtap ◽  
Ashwinqi V Mane ◽  
Aashish A Joshi

The invention and installation of a "grid tie rotating solar rooftop panel utilising PIC microcontroller" is presented in this work. As non-renewable energy supplies become scarcer, renewable energy sources are increasingly used to generate electricity. Solar panels are becoming increasingly popular, and this idea is based on a pic microcontroller rotates the solar panel according to position of sun. The solar panel's energy is then stored in a battery, which is then used to power the home or business. The grid tie mechanism then returns the remaining energy to the power station. As a result, many people's power usage will be lowered as a result of these projects. As light shines on the photodiode, a voltage is formed across these diodes, which is generated by the photovoltaic cell. The number of diodes in a series is termed an array, and these arrays are connected in parallel. As a result, the standard wattage panel is formed. Through a net metering system, the generated ac will be connected to the main grid. As a result, when our demand is lower, the generated supply will flow back to the grid, rotating the metre in the other way. The net metre system is named after the fact that as our demand increases at night, the metre rotates in the forward direction.


2018 ◽  
Vol 215 ◽  
pp. 01016
Author(s):  
Sepannur Bandri ◽  
Zulkarnaini Zulkarnaini ◽  
Andi Sofian

The sun is one of renewable energy sources. The use of sunlight using solar panels as a power plant began to be developed to reduce the use of fossil fuels. Solar panels have the advantage of being environmentally friendly because they do not have pollution-generating waste, are inexpensive and easy to apply. The power generated by solar panel is influenced by temperature and light intensity factor. The main problem of using solar panels is its efficiency is still low. This research presents an attempt to improve the energy conversion efficiency by solar panels by using Maximum Power Point Tracking method. The main principle of this method is adjusting the output voltage from the solar panel to obtain maximum power for different intensity of sunlight. The solar panel output voltage setting is performed using a buck boost converter controlled by MPPT system. The simulation results show that the use of this method of solar panel output power is higher by 64,78% -87,06% than without MPPT.


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