PV-module Soiling as a Main Photovoltaic System Performance Suppressor

2020 ◽  
Author(s):  
Yasuhiro Matsumoto ◽  
Marco A. Ramos ◽  
Jose A. Urbano ◽  
Miguel A. Luna ◽  
Nun Pitalua-Diaz ◽  
...  
Keyword(s):  
System Performance ◽  
Photovoltaic System ◽  
Pv Module

Research on the Impact of Shadow on the Performance of Building Photovoltaic System

2014 ◽  
Vol 694 ◽  
pp. 163-168
Author(s):  
Liang Guo ◽  
Yun Liang ◽  
Xu Zhang ◽  
Xiao Tian Yang
Keyword(s):  
System Performance ◽  
Rapid Development ◽  
Photovoltaic System ◽  
Future Research ◽  
Photovoltaic Module ◽  
Pv Module ◽  
New Energy ◽  
Generation Capacity ◽  
The Impact ◽  
Support Cost

With the rapid development of world economy, the energy crisis has become one of the urgent problems to be solved. Photovoltaic technology is a green new energy industry, no pollution is widely used all over the world. Typically, for photovoltaic component installation, only considering the utilization of components support cost and area, and the arrangement of components have not given enough attention. Photovoltaic module in use process will inevitably encounter the shadow, the shadow changes to make appropriate adjustments to the PV module arrangement can enhance the power generation capacity. Effect of the shadow on the photovoltaic system performance can be effectively used for photovoltaic component to bring help, is of positive significance. This study analyzed the villa model typical, and the rectangular shadow is modeling, in order to analyze the influence on the photovoltaic component. Through the conclusion of this study can determine the horizontal and vertical components of photovoltaic components which caused little damage, and provide a reference for future research of shadow and photovoltaic system performance.

Effects of Partial Shading on the PV Module Characteristic Curves

2010 ◽  
Vol 670 ◽  
pp. 391-398 ◽  
Author(s):  
Eva Paraskevadaki ◽  
S. Papathanassiou ◽  
Georgios Vokas
Keyword(s):  
System Performance ◽  
Significant Contribution ◽  
Photovoltaic System ◽  
Partial Shading ◽  
Array Configuration ◽  
Module Design ◽  
Pv Array ◽  
Pv Module ◽  
Pv Generator ◽  
Mismatch Losses

Photovoltaic system performance is influenced by a variety of factors such as irradiance, temperature, shading, degradation, mismatch losses, soiling, etc. Especially shading, complete or partial, can have a significant contribution to the reduction of power output, depending mainly on the PV array configuration, the shading pattern and the existence of bypass diodes incorporated in the PV module design. In order to obtain the maximum power from a PV generator, it is of great importance to evaluate the complex effects of shading on the P-V and I-V curves.

ENHANCEMENT OF PHOTOVOLTAIC SYSTEM PERFORMANCE BASED ON DIFFERENT ARRAY TOPOLOGIES UNDER ‎PARTIAL ‎SHADING CONDITIONS‎

2021 ◽  
Vol 40 (1) ◽  
pp. 49-62
Author(s):  
Abdelrahman M. Mohamed ◽  
Abou-Hashima M. El-Sayed ◽  
Yehia S. Mohamed ◽  
Husam A. Ramadan
Keyword(s):  
System Performance ◽  
Photovoltaic System ◽  
Partial Shading

Masking of photovoltaic system performance problems by inverter clipping and other design and operational practices

2021 ◽  
Vol 145 ◽  
pp. 111067
Author(s):  
John Balfour ◽  
Roger Hill ◽  
Andy Walker ◽  
Gerald Robinson ◽  
Thushara Gunda ◽  
...  
Keyword(s):  
System Performance ◽  
Photovoltaic System ◽  
Performance Problems ◽  
Operational Practices

Performance assessment of free standing and building integrated grid connected photovoltaic system for southern part of India

2020 ◽  
pp. 014362442097774
Author(s):  
VS Chandrika ◽  
M Mohamed Thalib ◽  
Alagar Karthick ◽  
Ravishankar Sathyamurthy ◽  
A Muthu Manokar ◽  
...  
Keyword(s):  
Geographical Location ◽  
Photovoltaic System ◽  
Building Structures ◽  
System Efficiency ◽  
Pv System ◽  
Free Standing ◽  
Pv Module ◽  
Building Integrated Photovoltaic ◽  
Community Buildings ◽  
Equatorial Climate

Photovoltaic (PV) system efficiency depends on the geographical location and the orientation of the building. Until installing the building structures, the integration of the PV module must be evaluated with ventilation and without ventilation effects. This work optimises the performance of the 250 kWp grid-connected photovoltaic (GPV) for community buildings in the southern part of India. This simulation is carried out to evaluate the system efficiency of the GPV system under various ventilation conditions, such as free-standing PV (FSPV), building integrated photovoltaic ventilated (BIPV_V) and Building Integrated Photovoltaic without ventilation (BIPV). The PVsyst simulation tool is used to simulate and optimise the performance of the system with FSPV, BIPV and BIPV_V for the region of Chennai (13.2789° N, 80.2623° E), Tamilnadu, India. An annual system energy production is 446 MWh, 409 MWh and 428 MWh of FSPV, BIPV and BIPV_V system respectively. while electrical efficiency for the FSPV, BIPV_V, BIPV system is 15.45%. 15.25% and 14.75% respectively. Practical application: Integrating the grid connected photovoltaic system on the building reduces the energy consumption in the building. The integration of the PV on the roof or semi integrated on the roof is need to be investigated before installing on the buildings. The need for installation of the BIPV with ventilation is explored. This study will assist architects and wider community to design buildings roofs with GPV system which are more aesthetic and account for noise protection and thermal insulation in the region of equatorial climate zones.

scholarly journals A Study of the Electrical Output and Reliability Characteristics of the Crystalline Photovoltaic Module According to the Front Materials

Energies ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 163
Author(s):  
Jong Rok Lim ◽  
Woo Gyun Shin ◽  
Chung Geun Lee ◽  
Yong Gyu Lee ◽  
Young Chul Ju ◽  
...  
Keyword(s):  
Surface Film ◽  
Front Surface ◽  
Photovoltaic System ◽  
Photovoltaic Module ◽  
Reliability Test ◽  
Tempered Glass ◽  
Characteristic Analysis ◽  
Pv Module ◽  
Reliability Characteristics ◽  
Electrical Output

In recent years, various types of installations such as floating photovoltaic (PV) and agri-voltaic systems, and BIPV (building integrated photovoltaic system) have been implemented in PV systems and, accordingly, there is a growing demand for new PV designs and materials. In particular, in order to install a PV module in a building, it is important to reduce the weight of the module. The PV module in which low-iron, tempered glass is applied to the front surface, which is generally used, has excellent electrical output and reliability characteristics; however, it is heavy. In order to reduce the weight of the PV module, it is necessary to use a film or plastic-based material, as opposed to low-iron, tempered glass, on the front surface. However, if a material other than glass is used on the front of the PV module, various problems such as reduced electrical output and reduced reliability may occur. Therefore, in this paper, a PV module using a film instead of glass as the front surface was fabricated, and a characteristic analysis and reliability test were conducted. First, the transmittance and UV characteristics of each material were tested, and one-cell and 24-cell PV modules were fabricated and tested for electrical output and reliability. From the results, it was found that the transmittance and UV characteristics of the front material were excellent. In addition, the electrical output and reliability test results confirmed that the front-surface film was appropriate for use in a PV module.

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