Solar Photovoltaic (PV) Generation

2021 ◽  
pp. 11-33
Author(s):  
Umesh Agarwal ◽  
Naveen Jain ◽  
S. N. Singh ◽  
Manoj Kumawat
Keyword(s):  
Solar Photovoltaic ◽  
Pv Generation

scholarly journals A Hybrid Spatio-Temporal Prediction Model for Solar Photovoltaic Generation Using Numerical Weather Data and Satellite Images

2020 ◽  
Vol 12 (22) ◽  
pp. 3706
Author(s):  
Bowoo Kim ◽  
Dongjun Suh
Keyword(s):  
Prediction Model ◽  
Satellite Images ◽  
Machine Learning Algorithms ◽  
Weather Data ◽  
Solar Photovoltaic ◽  
Solar Pv ◽  
Spatial Characteristics ◽  
Temporal Prediction ◽  
Spatio Temporal ◽  
Pv Generation

Precise and accurate prediction of solar photovoltaic (PV) generation plays a major role in developing plans for the supply and demand of power grid systems. Most previous studies on the prediction of solar PV generation employed only weather data composed of numerical text data. The numerical text weather data can reflect temporal factors, however, they cannot consider the movement features related to the wind direction of the spatial characteristics, which include the amount of both clouds and particulate matter (PM) among other weather features. This study aims developing a hybrid spatio-temporal prediction model by combining general weather data and data extracted from satellite images having spatial characteristics. A model for hourly prediction of solar PV generation is proposed using data collected from a solar PV power plant in Incheon, South Korea. To evaluate the performance of the prediction model, we compared and performed ARIMAX analysis, which is a traditional statistical time-series analysis method, and SVR, ANN, and DNN, which are based on machine learning algorithms. The models that reflect the temporal and spatial characteristics exhibited better performance than those using only the general weather numerical data or the satellite image data.

scholarly journals Mathematical Modelling of a System for Solar PV Efficiency Improvement Using Compressed Air for Panel Cleaning and Cooling

Energies ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4072
Author(s):  
Marcus King ◽  
Dacheng Li ◽  
Mark Dooner ◽  
Saikat Ghosh ◽  
Jatindra Nath Roy ◽  
...  
Keyword(s):  
Compressed Air ◽  
Solar Photovoltaic ◽  
Efficiency Improvement ◽  
Solar Pv ◽  
Full System ◽  
Pv Panel ◽  
Pv Generation ◽  
Air Compression ◽  
And Storage ◽  
Pv Power Generation

The efficiency of solar photovoltaic (PV) panels is greatly reduced by panel soiling and high temperatures. A mechanism for eliminating both of these sources of inefficiencies is presented by integrating solar PV generation with a compressed air system. High-pressure air can be stored and used to blow over the surface of PV panels, removing present dust and cooling the panels, increasing output power. A full-system mathematical model of the proposed system is presented, comprised of compressed air generation and storage, panel temperature, panel cleaning, and PV power generation. Simulation results indicate the benefit of employing compressed air for cleaning and cooling solar PV panels. For a fixed volume of compressed air, it is advantageous to blow air over the panels early in the day if the panel is soiled or when solar radiation is most abundant with the highest achievable flow rate if the panel is clean. These strategies have been shown to achieve the greatest energy captures for a single PV panel. When comparing the energy for air compression to the energy gain from cleaning a single PV over a two-week period, an energy ROI of 23.8 is determined. The system has the potential to eliminate the requirement for additional manual cleaning of solar PV panels.

scholarly journals Reactive Power Control on a Consumer Unit with High Integration of PV Generation

2020 ◽  
Author(s):  
Daniel C. Pompermayer ◽  
Mariana A. Mendes ◽  
Matheus Dimanski ◽  
Augusto C. Rueda-Medina
Keyword(s):  
Reactive Power ◽  
Energy Resource ◽  
Solar Photovoltaic ◽  
Espírito Santo ◽  
Distributed Energy Resource ◽  
Knowing That ◽  
Solar Plant ◽  
Pv Generation ◽  
Espirito Santo ◽  
The City

The Federal University of Espírito Santo has acquired 5,441 kWp of solar photovoltaic distributed energy resource (DER), which is being installed on the rooftoop of the buildings of the Goiabeiras Campus in the city of Vitória, Espírito Santo, Brazil. Knowing that the solar plant would decrease the metered power factor, this paper analyzed whether the finance revenue of the DER installation may be increased by the injection of reactive power using the DER inverters. Results allow to state that the revenue may be lightly increased. Nevertheless, the costs of a real implementation are not addressed.

Reliability modeling and performance evaluation of solar photovoltaic system using Gumbel–Hougaard family copula

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Anas Sani Maihulla ◽  
Ibrahim Yusuf ◽  
Muhammad Salihu Isa
Keyword(s):  
Power Systems ◽  
Photovoltaic System ◽  
Solar Photovoltaic ◽  
Solar Pv ◽  
Content Type ◽  
Reliability Indices ◽  
Pv Systems ◽  
Sensitivity Tests ◽  
Pv Generation ◽  
The Impact

PurposeSolar photovoltaic (PV) is commonly used as a renewable energy source to provide electrical power to customers. This research establishes a method for testing the performance reliability of large grid-connected PV power systems. Solar PV can turn unrestricted amounts of sunlight into energy without releasing carbon dioxide or other contaminants into the atmosphere. Because of these advantages, large-scale solar PV generation has been increasingly incorporated into power grids to meet energy demand. The capability of the installation and the position of the PV are the most important considerations for a utility company when installing solar PV generation in their system. Because of the unpredictability of sunlight, the amount of solar penetration in a device is generally restricted by reliability constraints. PV power systems are made up of five PV modules, with three of them needing to be operational at the same time. In other words, three out of five. Then there is a charge controller and a battery bank with three batteries, two of which must be consecutively be in operation. i.e. two out of three. Inverter and two distributors, all of which were involved at the same time. i.e. two out of two. In order to evaluate real-world grid-connected PV networks, state enumeration is used. To measure the reliability of PV systems, a collection of reliability indices has been created. Furthermore, detailed sensitivity tests are carried out to examine the effect of various factors on the efficiency of PV power systems. Every module's test results on a realistic 10-kW PV system. To see how the model works in practice, many scenarios are considered. Tables and graphs are used to show the findings.Design/methodology/approachThe system of first-order differential equations is formulated and solved using Laplace transforms using regenerative point techniques. Several scenarios were examined to determine the impact of the model under consideration. The calculations were done with Maple 13 software.FindingsThe authors get availability, reliability, mean time to failure (MTTF), MTTF sensitivity and gain feature in this research. To measure the reliability of PV systems, a collection of reliability indices has been created. Furthermore, detailed sensitivity tests are carried out to examine the effect of various factors on the efficiency of PV power systems.Originality/valueThis is the authors' original copy of the paper. Because of the importance of the study, the references are well-cited. Nothing from any previously published articles or textbooks has been withdrawn.

Long-term voltage stability with large-scale solar-photovoltaic (PV) generation

2020 ◽  
Vol 117 ◽  
pp. 105663 ◽  
Author(s):  
Enkhtsetseg Munkhchuluun ◽  
Lasantha Meegahapola ◽  
Arash Vahidnia
Keyword(s):  
Large Scale ◽  
Voltage Stability ◽  
Solar Photovoltaic ◽  
Pv Generation

Analysis of Current Situation and Countermeasure of Solar Energy Photovoltaic Power Generation in Beijing

2012 ◽  
Vol 608-609 ◽  
pp. 46-50
Author(s):  
Xiao Hong Zhang ◽  
Xin Li ◽  
Jin Ping Liang
Keyword(s):  
Power Generation ◽  
Energy Use ◽  
Environmental Problems ◽  
Solar Photovoltaic ◽  
Generation System ◽  
Photovoltaic Power ◽  
The World ◽  
World Economic ◽  
Power Generation System ◽  
Pv Generation

As the world economic development, environmental problems are increasingly serious and renewable energy use by the peoples of common concern. Beijing as the capital of China, is a densely populated city, the increasingly serious environmental problems, the energy consumption also increases, which not only affects people's daily life, but also influence the whole nation's image. The development of solar photovoltaic (PV) generation in Beijing has certain inevitability; its development is mature day after day. But in the course of its development there still exist various problems, therefore, the development of photovoltaic power generation system in Beijing also need further perfect and corresponding support.

scholarly journals On the Optimal Tilt Angle and Orientation of an On-Site Solar Photovoltaic Energy Generation System for Sabah’s Rural Electrification

2021 ◽  
Vol 13 (10) ◽  
pp. 5730
Author(s):  
Maryon Eliza Matius ◽  
Mohd Azlan Ismail ◽  
Yan Yan Farm ◽  
Adriana Erica Amaludin ◽  
Mohd Adzrie Radzali ◽  
...  
Keyword(s):  
Tilt Angle ◽  
Diffuse Radiation ◽  
Rural Electrification ◽  
Solar Photovoltaic ◽  
Solar Pv ◽  
Generation System ◽  
Output Data ◽  
Radiation Model ◽  
Pv Generation ◽  
Ongoing Project

An ongoing project to implement a mini standalone solar photovoltaic (PV) generation system of 2.5 kWp capacity at the eco-tourism centre of Liogu Ku Silou-Silou (EPLISSI), Sabah, was initiated in 2019. Since the solar panel support (ground mounting) used in this project will be erected separately, the main goals of this study are to estimate the optimum tilt angle, βopt, and orientation for the solar PV modules. To achieve these goals, the Liu and Jordan isotropic diffuse radiation model was used (1960). Another three isotropic diffuse sky radiation models (Koronakis model, Badescu model, and Tian model) were applied to estimate the optimum tilt angle with the orientation kept facing due south. For verification purposes, the PV power output data obtained from an online PV simulator known as Global Solar Atlas or GSA 2.3 was used and compared to the results of the four isotropic models. The results suggest that the Tian model is more suitable for approximating insolation, as it was proven to have the lowest difference among all models and is in close agreement with the result of the optimum tilt angle provided by GSA 2.3. However, the outcomes demonstrated from the isotropic models propose an error up to 30% (in the range of 31% to 32%) as compared to GSA 2.3.

scholarly journals Annualized Electricity Cost of Residential Solar PV System under Malaysia’s NEM Scheme

2020 ◽  
Vol 19 (1) ◽  
pp. 50-54
Author(s):  
Abdul Hafiz Razali ◽  
Md Pauzi Abdullah ◽  
Dalila Mat Said ◽  
Mohamad Yusri Hassan
Keyword(s):  
Solar Irradiation ◽  
Net Energy ◽  
Solar Photovoltaic ◽  
Solar Pv ◽  
Pv System ◽  
Electricity Cost ◽  
Energy Metering ◽  
Solar Pv System ◽  
Pv Generation ◽  
Net Energy Metering

Net energy metering (NEM) is a financial scheme that allows a consumer to generate, use and sell their excess energy to the grid. The main purpose of NEM is for self-consumption to reduce demand from the grid. It will allow customer to avoid being charged with expensive electricity tariff and hence reducing their monthly electricity bill. In other words, the annualized electricity cost could be reduced. NEM is commonly offered to residential solar photovoltaic (PV) system. Different PV size will determine the amount of energy that can be generated. This paper compares the annualized electricity cost of different residential customer types (large, medium and small) for different PV size under Malaysia’s net energy metering (NEM) scheme. This paper utilizes the load profile and solar irradiation data for Malaysia. The results show that high PV size does not guarantee reduction in annualized electricity cost especially for medium customers as the excess PV generation can only be accumulated for 24 months. Large customers may have benefited the most with lower annualized cost with larger PV system, while small customers may not have benefited at all.

scholarly journals Efficiency enhancement of solar PV powered micro-integrated high frequency isolated vehicle battery charging converter

2019 ◽  
Vol 10 (2) ◽  
pp. 953
Author(s):  
Jawahar Marimuthu ◽  
Jayasankar V ◽  
Karthik Kumar K ◽  
Edward Rajan S
Keyword(s):  
Power Level ◽  
Total System ◽  
Solar Photovoltaic ◽  
Solar Pv ◽  
Efficiency Enhancement ◽  
Generation System ◽  
Battery Charging ◽  
Conventional Vehicle ◽  
Pv Generation ◽  
Zero Voltage

<p>This Paper proposes a method to improve the efficiency of charging the battery used in autonomous electric vehicle powered by foldable roof-mounted solar photovoltaic (PV) generation system. The conventional vehicle battery charging application from solar PV consists of a boost converter in the frontend followed by a full bridge converter with discrete switches. Here an attempt is made on the total scheme with a micro integrated package to have better conversion efficiency with high power density. The total system is controlled digitally incorporating zero voltage transition (ZVT) in the full bridge conversion. A typical specification with a power level of 300-400 W was targeted and achieved.</p>

Modeling and Solving on the Solar Photovoltaic Cells Paving Optimization on Buildings

2014 ◽  
Vol 538 ◽  
pp. 256-259
Author(s):  
Cheng Sha Cao
Keyword(s):  
Photovoltaic Cells ◽  
Solar Photovoltaic ◽  
Photovoltaic Array ◽  
Pv Cell ◽  
The Right ◽  
The Cost ◽  
Pv Generation

The paving optimization of PV panels on buildings is an issue deserved to be studied. The issue is divided into three parts. First, choose the right PV cell aimed at maximum the PV generation. Second, determine the arrangement of the photovoltaic array aimed at the cost of all packages. Third, plan the model of photovoltaic array. At the end of the paper, the author gives the summary of the issue.

Sign in / Sign up

Export Citation Format

Share Document