scholarly journals RESEARCH OF ENERGY LOSS IN A SOLAR POWER PLANT AT A TRACTION SUBSTATION

2021 ◽  
pp. 149-160
Author(s):  
Vladislav Panchenko ◽  
Ruslan Kharin
Keyword(s):  
Power Plant ◽  
Power Plants ◽  
Solar Power ◽  
Climatic Conditions ◽  
Energy Losses ◽  
Solar Power Plant ◽  
Solar Panels ◽  
Power Performance ◽  
Network Losses ◽  
The Impact

An analysis of losses in a solar power plant of direct current № 18 с. Zmiiv, Kharkivregion with all climatic conditions of this region. The energy efficiency indicators of inverters used in these solar power plants are analyzed. According to experimental data based on the softwarepackage PVsyst measured energy losses generated by a solar power plant. Connecting the SES to themains can improve the voltage levels at the system nodes, but it is necessary to provide a powerreserve in the system to cover the power deficit in the event of a sudden shutdown due to naturalfactors.To analyze the energy losses of solar energy, the software package PVsyst was used, whichallows you to analyze the parameters of electricity losses with the display of loss diagrams for theyear and the dependence of the amount of losses in electricity generation by solar panels. PVsystsoftware is used to calculate the output power, performance, and total loss of a station connected tothe network. Losses calculated by PVsyst software include two types: PV array loss and System loss.After analyzing research conducted in Ukraine and other European countries, it is possible toconclude that the impact of poor quality electricity on electrical equipment is quite significant, andthe study of the impact of unconventional generation sources on electricity quality indicators willidentify ways to reduce electricity losses and increase electricity life equipment. The efficiency ofsolar energy conversion is greatly reduced due to reflections from the surface of the photovoltaicsystem. Also due to the peculiarities of the construction of photovoltaic converters there is a decreasein the efficiency of solar panels with increasing temperature.

Pengembangan Sistem Pengaturan Suplai Beban (Ats) Pada Pembangkit Listrik Tenaga Hibrid Berbasiskan Mikrokontroler

Kilat ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 261-271
Author(s):  
Sugeng Purwanto
Keyword(s):  
Power Plant ◽  
Alternative Energy ◽  
Power Plants ◽  
Solar Power ◽  
Electrical Energy ◽  
Solar Power Plant ◽  
Solar Panels ◽  
Hybrid Power ◽  
Solar Power Plants ◽  
One Year

ABSTRACT Renewable energy is potential alternative energy to replace the central role of fossil energy which has been going on since the early 20th century. The solar power plant is alternative energy, especially for households and industry, and can be designed as a hybrid power plant consisting of solar panels, batteries, an automatic transfer switch (ATS), and a grid. This research will focus on developing ATS based on a microcontroller. It functions to regulate the load supply automatically from the three sources of electrical energy, like solar panels, batteries, and grid while the microcontroller functions to monitor the transfer of power from the solar power plant to grid and voltage movements in the system so that current and voltage data can be recorded from time to time to improve system reliability, effectiveness, and efficiency of the tool. ATS components consist of MCB, magnetic contactor, timer H3CR, relay, 2000VA inverter, solar charge controller 100A, NodeMCU ESP8266 IoT, and battery 12V 100AH. This research is conducted in one year to produce ATS based on a microcontroller that can automatically regulate the supply of loads from the three sources of electrical energy with a good level of efficiency and stability.  Keywords: solar power plants, hybrid power plants, an automatic transfer switch.  ABSTRAK Energi baru terbarukan merupakan energi alternatif yang potensial untuk menggantikan peran sentral dari energi fosil yang telah berlangsung sejak awal abad ke 20. PLTS merupakan salah satu energi alternatif penyedia energi listrik untuk rumah tangga dan industri serta dapat dirancang sebagai sistem pembangkit listrik tenaga hibrid (PLTH) yang terdiri dari panel surya, baterai, sistem pengaturan beban atau ATS (automatic transfer switch) dan jaringan PLN. Peneltian difokuskan pada pengembangan sistem ATS berbasiskan mikrokontroler. ATS berfungsi untuk mengatur suplai beban secara otomatis dari ketiga sumber energi listrik yaitu panel surya, baterai dan PLN sedangkan mikrokontroler berfungsi memonitor perpindahan daya dari PLTS ke sumber PLN dan pergerakan tegangan pada sistem sehingga dapat dilakukan pencatatan data arus dan tegangan dari waktu ke waktu sehingga dapat meningkatkan keandalan sistem, efektifitas dan efisiensi alat. Komponen ATS terdiri dari MCB, magnetic contactor, timer H3CR, relay, inverter 2000VA, solar charge controller 100A, NodeMCU ESP8266 IoT, dan baterai 12V 100Ah. Penelitian ini akan dilakukan dalam periode satu tahun menghasilkan ATS berbasiskan mikrokontroler yang dapat mengatur suplai beban secara otomatis dari ketiga sumber energi listrik dengan tingkat efisiensi dan kestabilan yang baik. Tim penelitian ini tediri dari 3 orang dan berasal dari program studi teknik elektro, IT PLN.  Kata kunci: pembangkit listrik tenaga surya, pembangkit listrik tenaga hibrid, pengaturan suplai beban.

Kajian Kualitas Lingkungan Fisik-Kimia Akibat Pengoperasian Pembangkit Listrik Tenaga Surya Terpusat Di Desa Oelpuah Kecamatan Kupang Tengah Kabupaten Kupang

2018 ◽  
Vol 18 (2) ◽  
pp. 50
Author(s):  
Micklon Edison Nakmofa ◽  
Johanis N Kallau ◽  
Adrianus Amheka
Keyword(s):  
Physical Chemistry ◽  
Power Plant ◽  
Environmental Quality ◽  
Power Plants ◽  
Solar Power ◽  
Solar Power Plant ◽  
Electric Power Plants ◽  
Quality Water ◽  
Total Capacity ◽  
The Impact

The utilization of renewable electric power plants (non-fossil) in friendly environment needs to be done by using of solar energy for electricity generation. PT. LEN Industry built solar power Plant on Oelpuah Village, Kupang Tengah Subdistrict, Kupang Regency, with a total capacity of 5 megawatts Peak, which currently operates and the biggest Solar Power Plant in Indonesian. As a result of the operation of these solar power, it can be expected to have environmental impacts. The purpose of this study was to determine the impact of Physical Chemistry like air quality, water quality and noise, inside and outside of solar power plant operation. The results showed, because of PLTS Operation, it has an impact to physical chemistry environmental quality, but the impaCT STILL below the threshold of environmental quality standards.

scholarly journals Improving the energy efficiency of a solar power plant

2020 ◽  
pp. 132-143
Author(s):  
I. R. Vashchyshak ◽  
V. S Tsykh
Keyword(s):  
Energy Efficiency ◽  
Power Plant ◽  
Power Plants ◽  
Solar Power ◽  
Solar Power Plant ◽  
Solar Panels ◽  
The South ◽  
Inclination Angles ◽  
Fixed Power ◽  
Solar Power Plants

The urgency of the work is due to the feasibility of increasing the energy efficiency of solar power plants through the use of solar energy concentrators. Ways to improve the energy efficiency of solar panels using a sys-tem of directional mirrors, flat Fresnel lenses, spherical concentrators and trackers have been investigated. It is established that the most optimal way to improve the energy efficiency of solar panels is to use inexpensive track-ers with a simple design. The analysis of known types of solar panels, which differ in materials from which their elements are made, and the coefficients of efficiency – dependence of energy produced by a photocell on the intensity of solar radiation per unit of its surface has been carried out, and the type of solar panels by the criterion “price-quality” has been selected. A tracker design has been developed to track the angle of inclination of solar panels to increase efficiency. The electricity generated by the proposed solar power plant was calculated using an online calculator. It is projected to reduce losses when generating electricity for a given power plant due to the use of a tracker compared to a fixed power system, with the same number of solar panels. In order to reduce the cost of the tracker, it is suggested to orientate it to the south at once, and to change the inclination angles twice a year (in early April and late August). The energy efficiency of the power plant is calculated in two stages. At the first stage the amount of electricity from solar panels per year when adjusting only the angle of inclination of the panels to the south is calculated. At the second stage energy efficiency of the power plant is calculated taking into account the increase of energy efficiency of the solar power plant when using the tracker system. The calculated electricity generation of the proposed solar power plant with tracker confirmed the efficiency and feasibility of using the designed tracker system. The application of the designed tracker system allows to increase the energy efficiency of solar panels by an average of 25%.

scholarly journals Technical and Economic Analysis of Modernization of Solar Power Plant: A Case Study from the Republic of Cuba

2022 ◽  
Vol 14 (2) ◽  
pp. 822
Author(s):  
Emiliia Iakovleva ◽  
Daniel Guerra ◽  
Pavel Tcvetkov ◽  
Yaroslav Shklyarskiy
Keyword(s):  
Power Plant ◽  
Economic Analysis ◽  
Power Plants ◽  
Solar Power ◽  
Climatic Conditions ◽  
Solar Power Plant ◽  
Solar Module ◽  
Technical And Economic Analysis ◽  
Solar Power Plants ◽  
The Republic

The problem of increasing the efficiency of existing power plants is relevant for many countries. Solar power plants built at the end of the 20th century require, as their shelf lives have now expired, not only the replacement of the solar modules, but also the modernization of their component composition. This is due to the requirements to improve the efficiency of power plants to ensure the expansion of renewable energy technologies. This article presents a technical and economic analysis of the choice of solar power plant modernization method, which consists of (1) a method for calculating the amount of power generation; (2) the modeling of solar power plants under specific climatic conditions; (3) the analysis of electricity generation using different types of PV modules and solar radiation trapping technologies in Matlab/Simulink; and (4) the technical and economic analysis of a 2.5 MW solar power plant in the Republic of Cuba (in operation since 2015), for which four different modernization options were considered. All the scenarios differ in the depth of modernization; the results of the analysis were compared with the existing plant. The results of the study showed that the different modernization scenarios respond differently to changes in the inputted technical and economic parameters (cost per kWh, inflation rate, losses, and power plant efficiency). The maximum NPV deviations among the considered scenarios are: a 1% increase in inflation reduces NPV by 2%; a decrease in losses from 20% to 10% increases the NPV by 2.5%; a change in cost from EUR 0.05 to EUR 0.1 increases the NPV by more than 3.5 times. The dependence of the economic results was also tested as a function of three factors: solar module efficiency, inflation, and the price per 1 kWh. It was found that the greatest influence on the NPV of the proposed model is the price per 1 kWh. Based on this analysis, an algorithm was developed to choose the most effective scenario for the conditions of the Republic of Cuba for the modernization of the existing power plants.

scholarly journals Design and Analysis of Technical Economics of Off-grid Systems Solar Power Plant Using Homer at Cemara Island, Brebes Regency

2019 ◽  
Vol 125 ◽  
pp. 11002
Author(s):  
Jaka Windarta ◽  
Denis ◽  
Agung Nugroho ◽  
Bimo Bagaskoro
Keyword(s):  
Power Plant ◽  
Solar Power ◽  
Electrical Energy ◽  
Design Calculation ◽  
Solar Power Plant ◽  
Solar Panels ◽  
Coastal Tourism ◽  
Cost Of Energy ◽  
The Cost ◽  
The Impact

Cemara Island is a coastal tourism area that has not been electrified and this problem becomes an obstacle for local residents to use electrical energy services. The impact of the absence of facilities in the form of electrical installations is that coastal tourism activities are not optimal. These Photovoltaic technologies may convert solar energy into electrical energy through photovoltaic effects. For this reason, The Solar power plant can be the solution to the problems in Cemara Island. However, technical and economic analysis is needed. From the result of solar system design calculation, it was obtained the number of solar panel capacity is 8x150Wp, solar charge controller of 40A, 4 units of battery with 100Ah specifications, and 2000W of the inverter. By using Homer, it can be seen that the amount of power produced by solar panels is 1746kWh/year. With an initial investment of $3745, in the scenario of using interest at 6%, the net present cost is $6534, the cost of energy value is $1,06/kWh, and BEP occurring at 11th year. Then in the scenario without using interest, the net present cost value is $8848, the value of cost of energy is $0.755/kWh and BEP occurring at 25th year.

scholarly journals EXPERIMENTAL RESEARCH OF DOUBLE-SIDED SOLAR MODULES EFFICIENCY IN THE CLIMATIC CONDITIONS OF CENTRAL KAZAKHSTAN

2018 ◽  
pp. 30-35
Author(s):  
Alexey Yurchenko ◽  
Vyacheslav Yugay ◽  
Elena Neshina
Keyword(s):  
Power Plant ◽  
Experimental Research ◽  
Solar Power ◽  
Least Square Method ◽  
Climatic Conditions ◽  
Least Square ◽  
Solar Power Plant ◽  
Solar Panels ◽  
Photovoltaic Modules ◽  
Correlation And Regression Analysis

The article presents studies of double-sided solar modules in Kazakhstan. To conduct an experimental research of double-sided solar modules efficiency in the climatic conditions of Central Kazakhstan we have created an experimental solar power plant (SPP) located on the territory of Karaganda State Technical University. The solar power plant consists of four photovoltaic modules of KZ PV 270 M72 type and four photovoltaic modules of FSM-185D type. The rotary system was not used; solar panels are southward (directed to the south). The comparison was made with the solar power plant without orientation system which uses four photovoltaic modules of KZ PV 270 M72 type produced by Astana Solar LLP. The statistical analysis of information with an assessment of parameters of distribution and criteria for processing of results of scientific experiment is carried out. The correlation and regression analysis is performed. The least square method (coefficient calculation) is used in data processing. We have developed the computational model simulating the SPP by means of which the theoretical averaged values of energy amount generated in kWh/day have been obtained, and the actual values have been received by in-use measurements of SPP parameters within a year. The results of this work showed that the use of double-sided solar modules in Kazakhstan is very promising and can be a decisive factor for their widespread use with the tendency to lower prices.

scholarly journals EFFICIENCY ANALYSIS OF THE ON-GRID SOLAR POWER PLANT IN THE CHECHEN REPUBLIC

2020 ◽  
pp. 5-14
Author(s):  
И. Х. Саламов
Keyword(s):  
Power Plant ◽  
Private Sector ◽  
Power Plants ◽  
Solar Power ◽  
Economic Effect ◽  
Climatic Conditions ◽  
Operating Conditions ◽  
Solar Power Plant ◽  
Solar Power Plants ◽  
Using Data

Одной из актуальных задач в развитии возобновляемой энергетики является активное внедрение экологически чистых энергетических систем в частный сектор. В работе представлены результаты анализа выработки и экономической эффективности солнечной энергетической установки, работающей в частном секторе параллельно с централизованной электросетью. Исследованы методы прогнозирования выработки фотоэлектрических модулей в различных географических и климатических условиях. На основе анализа данных о выработке солнечной энергоустановки проведен сравнительный анализ расчетных и фактических характеристик в реальных эксплуатационных условиях. С использованием данных об уровне солнечной радиации на территории Чеченской Республики, а также данных о тарифах на электроэнергию в регионе, спрогнозирован экономический эффект от использования сетевой солнечной энергоустановки. One of the urgent tasks in the development of renewable energy is the active introduction of environmentally friendly energy systems in the private sector. The article presents the results of an analysis of the generation and economic efficiency of a solar power plant operating in the private sector in parallel with a centralized electric grid. Studied methods of predicting the efficiency of photovoltaic modules in different geographical and climatic conditions. Based on the analysis of data on the generation of solar power plants, a comparative analysis of the calculated and actual characteristics in real operating conditions is carried out. Using data on the level of solar radiation in the Chechen Republic, as well as data on electricity tariffs in the region, the economic effect of the use of a grid solar power plant is predicted.

scholarly journals Mathematical modeling of parameters of solar modules for a solar power plant 2.5 MW in the climatic conditions of the Republic of Cuba

2019 ◽  
Vol 140 ◽  
pp. 04013
Author(s):  
Daniel Guerra ◽  
Emiliia Iakovleva
Keyword(s):  
Mathematical Modeling ◽  
Power Plant ◽  
Solar Power ◽  
Climatic Conditions ◽  
Solar Power Plant ◽  
Solar Panels ◽  
Software Environment ◽  
Internal Factors ◽  
The Republic ◽  
Scale Experiment

Today, the problem of increasing the efficiency of solar panels is relevant. The parameters and characteristics of solar modules are analyzed using computer modeling methods. Many contemporary scientists are busy with the problem of modeling different solar modules in different conditions. This paper presents the results of mathematical modeling in the Matlab software environment of photoelectric modules of the DSM-240-C model. Based on the obtained simulation results, it seems possible to study the characteristics of solar modules depending on various external and internal factors – temperature and illumination. Also in this paper, we present the results of a full-scale experiment of photovoltaic modules that are part of a 2.5 MW solar power plant operating in the Republic of Cuba. The results of the experiment confirm the effectiveness of the simulation.

scholarly journals Improving the Efficiency of Solar Power Plants

2020 ◽  
Vol 30 (3) ◽  
pp. 480-497
Author(s):  
Dmitriy S. Strebkov ◽  
Yuriy Kh. Shogenov ◽  
Nikolay Yu. Bobovnikov
Keyword(s):  
Power Plant ◽  
Solar Radiation ◽  
Solar Energy ◽  
Power Plants ◽  
Solar Power ◽  
Horizontal Surface ◽  
Solar Power Plant ◽  
Utilization Factor ◽  
Working Surface ◽  
Solar Power Plants

Introduction. An urgent scientific problem is to increase the efficiency of using solar energy in solar power plants (SES). The purpose of the article is to study methods for increasing the efficiency of solar power plants. Materials and Methods. Solar power plants based on modules with a two-sided working surface are considered. Most modern solar power plants use solar modules. The reflection of solar radiation from the earth’s surface provides an increase in the production of electrical energy by 20% compared with modules with a working surface on one side. It is possible to increase the efficiency of using solar energy by increasing the annual production of electric energy through the creation of equal conditions for the use of solar energy by the front and back surfaces of bilateral solar modules. Results. The article presents a solar power plant on a horizontal surface with a vertical arrangement of bilateral solar modules, a solar power station with a deviation of bilateral solar modules from a vertical position, and a solar power plant on the southern slope of the hill with an angle β of the slope to the horizon. The formulas for calculating the sizes of the solar energy reflectors in the meridian direction, the width of the solar energy reflectors, and the angle of inclination of the solar modules to the horizontal surface are given. The results of computer simulation of the parameters of a solar power plant operating in the vicinity of Luxor (Egypt) are presented. Discussion and Conclusion. It is shown that the power generation within the power range of 1 kW takes a peak value for vertically oriented two-sided solar modules with horizontal reflectors of sunlight at the installed capacity utilization factor of 0.45. At the same time, when the solar radiation becomes parallel to the plane of vertical solar modules, there is a decrease in the output of electricity. The proposed design allows equalizing and increasing the output of electricity during the maximum period of solar radiation. Vertically oriented modules are reliable and easy to use while saving space between modules.

scholarly journals Operation experience of solar power plants connected to the Russian distributed grid

2018 ◽  
Vol 245 ◽  
pp. 07011 ◽  
Author(s):  
Lev Koshcheev ◽  
Evgeniy Popkov ◽  
Ruslan Seit
Keyword(s):  
Power Plant ◽  
Power Plants ◽  
Solar Power ◽  
Solar Power Plant ◽  
Hydro Power ◽  
Solar Power Plants

The islanding condition of grid-tied solar power plant with hydro power plant of commensurable power is considered in this article. Based on the results of the article, the relevant conclusions were drawn.

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