scholarly journals KAJIAN KUALITAS DAYA LISTRIK PLTS SISTEM OFF-GRID DI STT-PLN

2019 ◽  
Vol 10 (2) ◽  
pp. 93-101
Author(s):  
Aas Wasri Hasanah ◽  
Tony Koerniawan ◽  
Yuliansyah Yuliansyah
Keyword(s):  
Power Plant ◽  
Power Quality ◽  
Power Plants ◽  
Solar Power ◽  
Electrical Power ◽  
Harmonic Distortion ◽  
Electrical Equipment ◽  
Poor Quality ◽  
Solar Power Plants

Inadequate power quality causes damage and may even cause damage to electrical equipment. Solar Power Plants Off-grid is a stand-alone power plant is not connected to the network. This system uses storage media such as batteries to maintain the availability of electricity at night or when the sun's intensity decreases. Solar power plant has a PV module that works based on the intensity of the captured sunlight and the inverter that can change the dc voltage into ac where as is known in the inverter there are non linear components which can result in poor quality of electrical power in this case the total harmonic distortion and voltage variations change. This may result in damage to electrical equipment. The electrical power quality of the STT-PLN off-grid PLTS will be analyzed and compared with the IEEE 519-1992 and SPLN 1: 1995 standards. Based on the results of the discussion that the THDi and THDv values ​​are still above the established standard limit of 5%.

scholarly journals Analysed power quality of electrical system ahts vessel

2020 ◽  
Vol 9 (8) ◽  
pp. e836986151
Author(s):  
Agus Dwi Santoso ◽  
Ferry Budi Cahyono ◽  
Widyo Tri Laksana ◽  
Yosi Nurfalah
Keyword(s):  
Power Quality ◽  
Electrochemical Impedance ◽  
Electrical Power ◽  
High Harmonic ◽  
Harmonic Distortion ◽  
Electrical Equipment ◽  
Computational Techniques ◽  
Electrical System ◽  
Utility Systems

A number of power quality issues including electrical harmonics, poor power factor, and voltage instability and imbalance impact on the efficiency of electrical equipment. To support that equipment operates optimally, electrical power is generated must be have good quality. This study has a purpose to examine the power quality of electrical system AHTS (Anchor Handling Tug Supply) vessel. This research was done by quantitative method. Computational techniques used by the software of Total Harmonic Distortion (THD), which shares characteristics and Electrochemical Impedance Spectroscopy (EIS). The result of this analysis indicated that Electrical system in VM INPOSH REGENT have quality power very good of utility systems during full way condition, however during maneuver, there was a particularly high harmonic from non-linier devices used as motor control, which functional a role propulsion. Based on the result above, it can be concluded that after filtering so that harmonic can correct until perimeter secure ABS standard, system is very good during maneuver long site and maneuver on DP system.

scholarly journals Perspective on integration of concentrated solar power plants

2021 ◽  
Author(s):  
Bashria A A Yousef ◽  
Ahmed A Hachicha ◽  
Ivette Rodriguez ◽  
Mohammad Ali Abdelkareem ◽  
Abrar Inyaat
Keyword(s):  
Power Plants ◽  
Solar Power ◽  
Electrical Power ◽  
High Capacity ◽  
Solid Particles ◽  
Concentrated Solar Power ◽  
Power Fluctuation ◽  
Energy Technologies ◽  
Production Of Hydrogen ◽  
Solar Power Plants

Abstract Integration concept of energy resources can complement between the competing energy technologies. This manuscript presents a comprehensive review on the state-of-the-art of concentrated solar power (CSP) integration technology with various energy sources. Compared to CSP alone, integration of CSP and fossil fuel provides promising solution to solar energy intermittence, emissions and installation cost reduction, with 25% increase in electric power generation. On the other hand, integration of CSP with other sources such as geothermal and biomass can supply dispatchable power with almost zero emissions. The electricity produced via integrated CSP and photovoltaic (PV) has better power quality and less cost compared to that produced by PV alone or CSP alone, respectively. Integration of CSP and wind energy can meet peak demand, reduce power fluctuation and provide electrical power at a high capacity factor. However, the lack of reliable biomass, geothermal and wind data with the solar availability at specific locations is the main obstacle for the acceptance and further deployment of hybridization systems. The advantages and limitations of the hybrid technologies presented in this paper according to the literature are reviewed. Moreover, future directions of CSP such as production of hydrogen, solid particles receivers and the integration of supercritical carbon dioxide cycle are also discussed.

scholarly journals Condition Assessment of Solar Modules by Flash Test and Electroluminescence Test

Coatings ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1361
Author(s):  
István Bodnár ◽  
Dávid Matusz-Kalász ◽  
Rafael Ruben Boros ◽  
Róbert Lipták
Keyword(s):  
Power Plant ◽  
Power Plants ◽  
Solar Power ◽  
Test Results ◽  
Performance Reduction ◽  
Solar Power Plants ◽  
Operational Errors ◽  
Hungarian State ◽  
Short Time ◽  
Real State

The Hungarian society and the Hungarian state are constantly increasing their solar capacity. More and more solar power plants are being put into operation. The largest of these has a 100 MW peak capacity. Such power plants do not require constant maintenance. However, in the case of low productivity, a conditional assessment is required. The reason for production loss can also be manufacturing, installation, and operational errors. A flying drone was used for finding failures by thermographic scouting. Furthermore, electroluminescent (EL) and flash tests give a comprehensive view of the real state of the modules in a mobile laboratory. We had the opportunity to summarize these test results of more than a thousand modules operating in a solar power plant. The report on the power plant shows that a significant part of the modules became unusable in a short time. After four years, 10% of the 260 Wp modules suffered a performance reduction of more than 10%.

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.

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.

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.

scholarly journals COMPARATIVE INVESTIGATION OF FIXED AND TRACKING PV SOLAR POWER PLANTS ENERGY EFFICIENCY

2019 ◽  
Vol 10 (2) ◽  
Author(s):  
Dragoljub Mirjanić ◽  
Tomislav Pavlović ◽  
Ivana Radonjić ◽  
Darko Divnić
Keyword(s):  
Energy Efficiency ◽  
Power Plant ◽  
Monitoring System ◽  
Power Plants ◽  
Solar Power ◽  
Comparative Investigation ◽  
Solar Power Plant ◽  
Basic Information ◽  
Solar Power Plants

The paper provides basic information on fixed (stationary), one-axis tracking and dual-axis tracking PV solar power plants. In this regard, a schematic overview of the PV solar power plant and basic information on its components (solar modules, inverters, monitoring system, etc.) are given. The following is a description of the fixed, one-tracking and dual-tracking PV solar power plant and their energy efficiency. Finally, measured results of power and temperature of fixed and dual-axis tracking solar modules of 50 W are presented.

scholarly journals Risk Management Based on NPV-at-Risk: A Case Study in Floating Solar Power Plant Project

2021 ◽  
Vol 22 (2) ◽  
pp. 245-254
Author(s):  
Octa Untoro ◽  
Fakhrina Fahma ◽  
Wahyudi Sutopo
Keyword(s):  
At Risk ◽  
Risk Management ◽  
Power Plant ◽  
Power Plants ◽  
Solar Power ◽  
Risk Mitigation ◽  
Risk Identification ◽  
Solar Power Plant ◽  
Investment Return ◽  
Solar Power Plants

There are some unpredicted factors in floating solar power plants that can affect the investment return value. This research aimed to develop an NPV-at-risk based risk management analysis on the floating solar power plant. This research proposed six-staged solutions: communication and consultation, context assignment, risk identification, risk analysis, risk evaluation, and risk mitigation. This study took place in a floating solar power plant in Indonesia. This research showed that some unpredicted risks, such as irradiation, operation and maintenance costs, inflation, and interest rate, could contribute to the investment return. This procedural proposal could be applied in the management of the income realization based on the income projection.

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