scholarly journals Benchmarking study between capacitive and electronic load technic to track I-V and P-V of a solar panel

Author(s):  
Abdellah Asbayou ◽  
Amine Aamoume ◽  
Mustapha Elyaqouti ◽  
Ahmed Ihlal ◽  
Lahoussine Bouhouch

<p>To detect defects of solar panel and understand the effect of external parameters such as fluctuations in illumination, temperature, and the effect of a type of dust on a photovoltaic (PV) panel, it is essential to plot the Ipv=f(Vpv) characteristic of the PV panel, and the simplest way to plot this I-V characteristic is to use a variable resistor. This paper presents a study of comparison and combination between two methods: capacitive and electronic loading to track I-V characteristic. The comparison was performed in terms of accuracy, response time and instrumentation cost used in each circuit, under standard temperature and illumination conditions by using polycrystalline solar panel type SX330J and monocrystalline solar panels type ET-M53630. The whole system is based on simple components, less expensive and especially widely used in laboratories. The results will be between the datasheet of the manufacturer with the experimental data, refinements and improvements concerning the number of points and the trace time have been made by combining these two methods.</p>

2021 ◽  
Vol 229 ◽  
pp. 01021
Author(s):  
Abdellah Asbayou ◽  
Mohamed Agdam ◽  
Amine Aamoume ◽  
Ahmed Soussi ◽  
Ahmed Ihla ◽  
...  

To understand the electrical behavior of a photovoltaic panel, it is necessary to know the characteristic Ipv = f(Vpv). The best way to obtainthis I-V curve is to use a variable resistor. This paper proposes a new and simple technique based on a MOSFET transistor as a variable load, which whose gate voltage is controlled by an RC filter from the Arduino. A comparison under standard temperature and illumination conditions between the manufacturer’s datasheet with the simulation by MATLAB/Simulink on the one hand, and on the other hand between the manufacturer’s datasheet with the experimental data for the evaluation of this technique that has been performed.


Author(s):  
M. O. Slabinoga ◽  
N.B. Klochko ◽  
O. S. Krynytskyi ◽  
Yu. M. Kuchirka

The work is devoted to the investigation of the effectiveness of the coordinate search methods for solving the problem of finding the position of the solar panels, in which the greatest power of the produced current is achieved. The existing solutions in the market of sun surveillance systems (solar trackers) are analyzed. The advantages and disadvantages of such systems are presented in comparison with fixed panels. It is proposed to improve the hardware and software for research of the solar panels efficiency, developed by the authors and highlighted in the previous works, by integrating the program realization of the algorithm of coordinate search of the maximum power of solar panels into the existing. For this purpose, the efficiency of three algorithms for coordinate search of the maximum, namely, the method of coordinate ascending, the Huck-Jeeves method and the Rosenbrock method, was studied in three parameters. Experiments were carried out on data obtained both experimentally using the lab stand for solar panel efficiency research, and by generation using mathematical model of the solar panel efficiency dependance on the angle of radiation, described in previous works. TThe results of experiments are analyzed, which showed a fundamental difference between the work of coordinatewise search algorithms on a mathematical model and experimental data. The main indicators of the efficiency of algorithms are substantiated on the basis of the meteorological conditions in which the measurement was carried out for the formation of experimental data. Conclusions are drawn regarding the efficiency of using these coordinate-based search methods for solving the problem of finding the optimal position of solar panels. Further prospects for research on this topic and the possibility of using coordinate-wise search methods in software of solar panels with a biaxial orientation on the position of the Sun are given.


2017 ◽  
Vol 5 (1) ◽  
Author(s):  
I Gusti Lanang Yoga Rafsandita ◽  
Gede Widayana ◽  
I Wayan Sutaya

Indonesia merupakan negara yang memiliki berbagai jenis sumber daya energi dalam jumlah yang cukup melimpah. Wilayah Indonesia akan selalu disinari matahari selama 10 - 12 jam dalam sehari. Data Dirjen Listrik dan Pengembangan Energi pada tahun 1997, kapasitas terpasang listrik tenaga surya di Indonesia mencapai 0,88 MW dari potensi yang tersedia 1,2 x 109 MW. Kebanyakan panel surya dipasang permanen dengan sudut elevasi yang tetap (fixed elevating angles). Hal ini menyebabkan panel surya tersebut tidak dapat menyerap radiasi matahari secara optimal. Penyerapan radiasi matahari akan optimal jika arah radiasi matahari tegak lurus terhadap permukaan bidang panel surya. Penulis tertarik untuk merancang dan membuat alat yang dapat dipergunakan untuk menempelkan panel sel surya tetap dalam kondisi intensitas matahari yang maksimum. Dalam hal ini, menggunakan satu sumbu. dengan telah dibuatnya alat penggerak mekanik satu sumbu pada solar panel ini, penulis dapat memberikan gambaran tentang pembangkit listrik tenaga surya kepada masyarakat. Selain itu dengan adanya penggerak mekanik pada solar panel ini, solar panel bisa lebih besar menghasilkan tegangan pada baterai daripada solar panel tanpa penggerak. Dan dari percobaan menggunakan penggerak mekanik satu sumbu ini menghasilkan tegangan di pukul 08.00 pada baterai nominal sebesar 2,04V hari pertama, 2,05V hari kedua dan 2,03V hari ketiga dan di akhir perhitungan pukul 16.00 tegangan pada baterai menujukan nominal sebesar 11,18V hari pertama, 11,27V hari kedua dan 11,3V hari ketiga.Kata Kunci : Solar Panel, Tipe BCT30-12, Penggerak Satu Sumbu Indonesia is a country that has different kinds of energy resources in sufficient quantities abundant. then Indonesia will be always exposed to the sun for 10-12 hours a day. Data Director General of Electricity and Energy Development in 1997, the installed capacity of solar power in Indonesia reached 0.88 MW of the available potential of 1.2 x 109 MW. Most solar panels are installed permanently at a fixed elevation angle (fixed elevating angles). This causes the solar panels can not absorb solar radiation optimally. Absorption of solar radiation would be optimal if the solar radiation direction perpendicular to the surface of solar panel field. Writers interested in designing and creating tools that can be used to attach the solar panels remain in a state of maximum intensity of the sun. In this case, using a single axis. to have made a mechanical actuator on the solar panel one axis, the author can give an idea of solar power plants to the public. In addition to the mechanical drive on the solar panels, the solar panels generate voltage can be larger than the solar panel to the battery without driving. And from experiments using mechanical drive one axis produces a voltage at 08.00 at a total nominal battery 2,04V first day, 2,05V 2,03V second day and third day and at the end of the calculation 16.00 nominal voltage of the battery addressed by 11,18V the first day, 11,27V 11,3V second day and third day.keyword : Solar Panel, Type BCT30-12, Activator One Wick


Author(s):  
Belly Yan Dewantara ◽  
Daeng Rahmatullah

<em>Nowadays solar panel is widely used as an independent power plant, it can be seen the many applications of solar panels on electrical equipment, such as traffic light, general lighting, etc. The energi produced by solar panel is affected by the absorbed sunlight. generally solar panels are implemented statically, this causes the absorption of solar energi is not maximal in the morning and afternoon. To maximize the absorption of sunlight, solar panels must always be facing perpendicular to the position of the sun. Automatic solar tracking system is needed to solve these problems, It is makes solar panels always perpendicular to the sun and can follow the movement of the sun, so that the absorption of solar energi is more leverage. The results of the test show the use of automatic tracking system to get the maximum absorption of solar energi indicated by a more stable voltage output,and the power generated is greater than using a static solar panel. Automatic Sun Tracking System (ASTS) increase the average power up to ± 39-41 watt / day with the efficiency of ASTS 81.66% on PV panel 50 WP.</em>


Author(s):  
BAYU ERFIANTO ◽  
ALDRY HERNANDA SETIAWAN

ABSTRAKPenelitian ini bertujuan untuk mengetahui sebaran atau distribusi panas yang terjadi pada permukaan panel surya atau photo voltaic (PV) dengan dengan data sebaran sensor yang diolah dengan metode interpolasi cubic spline, sehingga dapat digunakan untuk mengetahui posisi panel surya yang efektif dan ideal menerima cahaya matahari. Selain informasi panas pada panel surya juga informasi mengenai daya yang dikeluarkan oleh panel surya tersebut. Pemetaan distribusi panas pada panel PV menggunakan metode interpolasi cubic spline yang selanjutnya divisualisasikan dalam heatmap 2D. Berdasarkan heatmap hasil interpolasi dan hasil eksperimen menunjukkan panel PV pada posisi vertikal dengan kemiringin 0o pukul 12.00-14.00 menghasilkan arus tertinggi yaitu 449.2mA dengan tegangan yang dihasilkan sebesar 1.03V sehingga menghasilkan daya sebesar 0.46W. Hal ini lebih optimal dari suhu permukaan PV yang lebih panas pada pada posisi vertikal dengan kemiringin 45o ataupun posisi horizontal 0o dan 45o pada jam yang sama.Kata kunci:panel surya, heatmap, cubic spline, interpolasi  ABSTRACTThis research aims to determine the distribution of heat that is exposed on the surface of solar panels or photo voltaic (PV), where the data from distributed sensor is processed by means of cubic spline interpolation method, so that it can be used to determine the ideal and effective position of solar panel to receive sunlight radiation. In addition to heat information on the solar panel, information about the power generated by PV is also measured. Based on the heatmap generated from the interpolation method and the experimental results, it shows that the PV panel in a vertical position with 0o inclination at 12.00-14.00 produces the highest current which is 449.2mA with the output voltage of 1.03V, thus the generated power is about 0.46W. This is more optimal than the surface temperature of the PV which is hotter in the vertical position with a  45o or horizontal position with 0o and 45o at the same time.Keywords: solar panel, heatmap, cubic spline, interpolation


2020 ◽  
Vol 12 (2) ◽  
pp. 78-84
Author(s):  
Abhisak Sharma ◽  
Pardeep Kumar ◽  
Gyander Ghangas ◽  
Vishal Gupta ◽  
Himanshu Sharma ◽  
...  

This paper represents the comparison of the voltages generated by the tracking and static solar panels. The work also aims to design and  fabrication of a cheap and efficient tracking device. This device comprises of hardware and software. A rigid mechanical structure with nut and  screw as the transmission is developed. 4 LDRs and DC motors are employed, which are cheap and less power consuming. As far as the software  concerns, an open source microcontroller “Arduino UNO” board is used because of their simplicity and cost effectiveness. This Sun tracking device with a PV panel installed on it, is placed outside at the roof of the building along with a static solar panel. Output voltages generated from both panels are recorded in SD card through data logger in Arduino UNO. This real-time data shows the difference in amplitude of both the signals. Voltage of rotating panel is more than static one resulting that the tracking device can increase the efficiency of the panel by exposing the PV panel more to the sun light. Hence this setup proves that the solar panel with tracking system generates more energy than solar panel without tracking system. Keywords: Solar Tracker, LDR, PV Panel, Arduino UNO Board.


Author(s):  
Lahcen El Mentaly ◽  
Abdellah Amghar ◽  
Hassan Sahsah

Background: The solar field on our planet is inexhaustible, which favors the use of photovoltaic electricity which generates no nuisance: no greenhouse gases, no waste. Methods: It is a high value-added energy that is produced directly at the place of consumption through photovoltaic (PV) solar panels. Notwithstanding these advantages, the maximum power depends strongly on solar irradiation and temperature, which means that a Maximum Power Point Tracking (MPPT) controller must be inserted between the PV panel and the load in order to follow the Maximum Power Point (MPP) continuously and in real time. In this work, MPP’s behavior was simulated at different temperatures and solar irradiations using seven techniques which identify the MPP by different methods. Results: The novelty of this work is that the seven MPPT methods were compared according to a very selective criterion which is the MPPT efficiency as well as a purely digital duty cycle control without using the PI controller. The simulation under the PSIM software shows that the FLC, TP, FSCC, TG, HC and IC methods have almost the same efficiency of 99%, whereas the FOCV method had a low efficiency of 96%. Conclusion: This makes it possible to conclude that the best methods are FLC, HC and IC because they use fewer sensors compared to the rest.


Electronics ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 1464
Author(s):  
Marcin Walczak ◽  
Leszek Bychto

DC/DC converters are widely used in photovoltaic (PV) systems to maximize the power drained from solar panels. As the power generated by a PV panel depends on the temperature and irradiance level, a converter needs to constantly modify its input resistance to remain at the maximum power point (MPP). The input resistance of a converter can be described by a simple equation that includes the converter load resistance and the duty cycle of the switching signal. The equation is sufficient for an ideal converter but can lead to incorrect results for a real converter, which naturally features some parasitic resistances. The goal of this study is to evaluate how the parasitic resistances of a converter influence its input resistance and if they are relevant in terms of MPPT system operation.


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.


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