scholarly journals Charge Dissipation Behavior on the Insulating Polyimide Backsheet in Photovoltaic System

2021 ◽  
Vol 2087 (1) ◽  
pp. 012003
Author(s):  
De-Kun Cao ◽  
Jia-Wei Zhang ◽  
Shaoran Wang ◽  
Gang Dong ◽  
Hongwei Ni ◽  
...  
Keyword(s):  
Surface Charge ◽  
Mild Condition ◽  
Electric Properties ◽  
Photovoltaic System ◽  
Steady Condition ◽  
Pv System ◽  
Dynamic Behaviors ◽  
Ambient Temperatures ◽  
Pv Module ◽  
Charge Decay

Abstract Deterioration of electric properties will be generated by the accumulation of surface charge on photovoltaic backsheet in the insulating system of photovoltaic (PV) system. The phenomena of potential induced degradation (PID) could be verified in the insulating Polyimide (PI) backsheet of PV module. In the field of photovoltaic system, PI has been found a special insulating backsheet that work in a mild condition. If the dynamic behaviors of the charge in the insulating backsheet could be understand, unexpected flashover events will be avoided. Thus, the mechanism of surface charge decay of PI should be explored under steady condition. The effect of accumulation of surface charge was explored on PI dielectric under constant ambient temperatures in this paper. The present investigation will contribute greatly toward the early potential induced degradation phenomenon of PV system.

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 Design of a Building-Integrated Photovoltaic System with a Novel Bi-Reflector PV System (BRPVS) and Optimal Control Mechanism: An Experimental Study

Electronics ◽  
2018 ◽  
Vol 7 (7) ◽  
pp. 119 ◽  
Author(s):  
Muhammad Khan ◽  
Kamran Zeb ◽  
Waqar Uddin ◽  
P. Sathishkumar ◽  
Muhammad Ali ◽  
...  
Keyword(s):  
Low Cost ◽  
Input Voltage ◽  
Photovoltaic System ◽  
Solar Pv ◽  
Pv System ◽  
Building Integrated Photovoltaics ◽  
Pv Module ◽  
Solar Pv System ◽  
Zero Carbon ◽  
The Cost

Environment protection and energy saving are the most attractive trends in zero-carbon buildings. The most promising and environmentally friendly technique is building integrated photovoltaics (BIPV), which can also replace conventional buildings based on non-renewable energy. Despite the recent advances in technology, the cost of BIPV systems is still very high. Hence, reducing the cost is a major challenge. This paper examines and validates the effectiveness of low-cost aluminum (Al) foil as a reflector. The design and the performance of planer-reflector for BIPV systems are analyzed in detail. A Bi-reflector solar PV system (BRPVS) with thin film Al-foil reflector and an LLC converter for a BIPV system is proposed and experimented with a 400-W prototype. A cadmium–sulfide (CdS) photo-resistor sensor and an Arduino-based algorithm was developed to control the working of the reflectors. Furthermore, the effect of Al-foil reflectors on the temperature of PV module has been examined. The developed LLC converter confirmed stable output voltage despite large variation in input voltage proving its effectiveness for the proposed BRPVS. The experimental results of the proposed BRPVS with an Al-reflector of the same size as that of the solar PV module offered an enhancement of 28.47% in the output power.

Design of Distributed Wireless Monitoring System to Photovoltaic Modules Based on CC2530

2011 ◽  
Vol 141 ◽  
pp. 103-108
Author(s):  
Bao Jie Xu ◽  
Mao Wang
Keyword(s):  
Monitoring System ◽  
Photovoltaic System ◽  
Sensor Nodes ◽  
Operation Condition ◽  
Pv System ◽  
Monitoring Method ◽  
Wireless Monitoring ◽  
Pv Module ◽  
Set Up ◽  
Monitoring Application

Effective monitoring of photovoltaic system can make the operation condition of the system easy to know, and can also provide powerful data support for the further research. General monitoring method is to confirm the state of photovoltaic system by monitor the inverter unit’s some parameters relevant. This paper focuses on the monitoring of PV module, in order to get more accurate data, and then improve the efficiency of the PV system. Achieve the purpose of monitoring by the wireless sensor network constructed by sensor nodes that is designed proper for the acquisition of solar modules’ parameters data relevant, the monitoring application software also has been completed. The results indicate that the monitoring system who achieves the design requirements and expectations well, also with the characteristics of cost saving and convenient to set up has promising prospects.

An Improved Photovoltaic Array Configuration for Photovoltaic System in the Presence of Maximum Power Point Tracking during Partial Shading Condition

2017 ◽  
Vol 6 (2) ◽  
pp. 301 ◽  
Author(s):  
K. Burhanudin ◽  
N.A. Kamarzaman ◽  
A.A.A. Samat ◽  
A.I. Tajudin ◽  
S.S. Ramli ◽  
...  
Keyword(s):  
Photovoltaic System ◽  
Pv System ◽  
Partial Shading ◽  
Array Configuration ◽  
Photovoltaic Array ◽  
Pv Array ◽  
Point Tracking ◽  
Simulation Speed ◽  
Pv Panel ◽  
Pv Module

Power-Voltage (P-V) curve and Current-Voltage (I-V) curve determine the performance of the PV system. In this work, the arrangements of the PV module were reconstructed by adding the number of PV module in 3 strings configuration from 5 to 45. This method enhance the performance of the PV system as it able to show the characteristic of the P-V and I-V curve during partial shading and maximum irradiance despite higher number of PV panel. This study focuses on improving the PV array configuration and simulation speed of the PV panel. The simulation of small size PV array is possible, but the problem lies when the number of string and PV module used increases. New PV array configuration is flexible and easy to add string and increase the number of PV module. PV array configuration was modeled using MATLAB/SIMULINK software.

scholarly journals An optimum location of on-grid bifacial based photovoltaic system in Iraq

2022 ◽  
Vol 12 (1) ◽  
pp. 250
Author(s):  
Amina Mahmoud Shakir ◽  
Siba Monther Yousif ◽  
Anas Lateef Mahmood
Keyword(s):  
Photovoltaic System ◽  
Energy Yield ◽  
Optimum Location ◽  
Pv System ◽  
Pv Systems ◽  
Pv Module ◽  
System Module ◽  
Irradiation Level ◽  
The Cost ◽  
Suitable Location

Bifacial photovoltaic (PV) module can gain 30% more energy compared to monofacial if a suitable location were chosen. Iraq (a Middle East country) has a variable irradiation level according to its geographic coordinates, thus, the performance of PV systems differs. This paper an array (17 series, 13 parallel) was chosen to produce 100 kWp for an on-grid PV system. It investigates the PV system in three cities in Iraq (Mosul, Baghdad, and Basrah). Effect of albedo factor, high and pitch of the bifacial module on energy yield have been studied using PVsyst (software). It has been found that the effect is less for a pitch greater than 6 m. The energy gained from bifacial and monofacial PV system module in these cities shows that Mosul is the most suitable for installing both PV systems followed by Baghdad and lastly Basrah. However, in Basrah, the bifacial gain is 12% higher in the energy than monofacial as irradiation there is higher than the other locations, especially for elevation above 1.5 m. Moreover, the cost of bifacial array is 7.23% higher than monofacial, but this additional cost is acceptable since the bifacial gain is about 11.3% higher energy compared to the monofacial.

scholarly journals Accuracy of Detection and Classification of DC Faults using Levenberg Marquardt Based Back Propagation Algorithm

2020 ◽  
Vol 9 (6) ◽  
pp. 289-294
Keyword(s):  
Neural Network ◽  
Back Propagation ◽  
Photovoltaic System ◽  
Back Propagation Algorithm ◽  
Pv System ◽  
Power Sources ◽  
Pv Module ◽  
Levenberg Marquardt ◽  
Sustainable Power

Vitality is seen as a prime administrator in the time of wealth and a vital figure budgetary headway. Obliged fossil resources and natural issues associated with them have underscored the necessity for new reasonable vitality supply choices that uses sustainable power sources. Among open developments for essentialness age from solar dependent sources, the photovoltaic system might give a gigantic pledge to develop a progressively feasible imperativeness structure. This paper presents accuracy of detecting DC faults in a photovoltaic (PV) framework based on Levenberg - Marquardt (LM) neural network. The result showed that this model based on LM neural network is effectual to grip doubts and nonlinearities of DC side faults in PV module without using mathematical model. All probable faults in DC side of PV system are obtained over 100 kW plant. It is discovered that the proposed framework has demonstrated its integrity for the pragmatic applications.

scholarly journals The Reliability Analysis of PV Panels Installed in KP Region

2020 ◽  
Vol 7 (10) ◽  
pp. 384-389
Author(s):  
Jawad Ahmad ◽  
Keyword(s):  
Short Circuit ◽  
Equivalent Circuit Model ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Photovoltaic System ◽  
Photovoltaic Module ◽  
Pv System ◽  
Peak Voltage ◽  
Pv Module ◽  
Term Performance

Reliability and long term performance of photovoltaic (PV) system is of vital importance in switching from conventional sources to sustainable one. Design, study and analysis of key components in a photovoltaic power system starting from generation of power to withstands number of climatic stresses and uninterrupted power supply plays a key role. One of the key elements in photovoltaic system is photovoltaic module. Also power generated in photovoltaic system is dependent on a source of energy that changes in every instant and with the passage of time during its operation .Hence it is paramount to build a long lasting photovoltaic module and analyze characteristics of the PV module under various conditions. This paper presents an efficient PV module based on PV equivalent circuit model using MATLAB/Simulink, and compared the simulated model results with manufacturer’s specifications like peak current, peak voltage, open circuit voltage and short circuit current .Also the performance of the module under variation of series resistance, irradiation, and temperature are analyzed. Data from five different areas across KP are noted and the results were Simulated and compared with the rated data.

Estimation and validation of electric power output from a fixed-type floating photovoltaic system

2020 ◽  
Author(s):  
Jangwon Suh ◽  
Sungmin Kim ◽  
Yosoon Choi
Keyword(s):  
Electric Power ◽  
Water Environment ◽  
Photovoltaic System ◽  
Design Parameters ◽  
Accurate Estimation ◽  
Pv System ◽  
Empirical Results ◽  
Feasibility Assessment ◽  
Pv Module ◽  
Fixed Type

<p>An accurate estimation of electric power production (EPP) is a crucial first step to design a floating photovoltaics (PV) project. This study estimates the EPP of a floating PV system and validates the results by comparing with the actual EPP observed at the Hapcheon Dam, Korea. Typical meteorological year data and system design parameters were entered into System Advisor Model (SAM) software to estimate the hourly and monthly EPPs. Three-year average observed EPPs (2012, 2013, and 2015) were used as reference values for the validation. The results showed the seasonal EPPs were the highest in spring and the lowest in winter. The monthly estimated EPPs were lower than the monthly observed EPPs. These results are ascribed to the fact the SAM was unable to consider the natural cooling effect of the water environment on the PV module. The error results showed it was possible to estimate the monthly EPPs with an error of less than 15% simply by simulation. However, it may possible to estimate the monthly EPPs with an error of approximately 9% when considering empirical results: The floating PV efficiency was approximately 1.1 times (110%) the overland PV efficiency. This indicates that the approach of using empirical results can provide reliable monthly estimation of EPP in feasibility assessment stage of floating PV projects.</p>

scholarly journals STUDY OF OPERATING MODES OF A STAND-ALONE PHOTOVOLTAIC SYSTEM FOR OUTDOOR LIGHTING

2013 ◽  
Vol 4 (2) ◽  
Author(s):  
Stoyo Platikanov ◽  
Milko Yovchev
Keyword(s):  
Light Emitting Diode ◽  
Electrical Energy ◽  
Operating Mode ◽  
Photovoltaic System ◽  
Pv System ◽  
Remote Visualization ◽  
Light Emitting ◽  
Operating Modes ◽  
Pv Module ◽  
Led Luminaire

Photovoltaic power supply of street lighting has been developing rapidly in recent years. A stand-alone photovoltaic (PV) system supplying light-emitting diode (LED) outdoor luminaires has been constructed in the Technical University of Gabrovo. A PV-LED system consists of a PV module, a storage battery, a solar controller, a LED lamp and a system for remote visualization of operating modes. Working processes for optimization of the night operating mode of LED luminaire have been studied. Data on electrical energy stored by the battery and consumed for lighting have been presented.

scholarly journals A new meta-heuristic pathfinder algorithm for solving optimal allocation of solar photovoltaic system in multi-lateral distribution system for improving resilience

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Varaprasad Janamala
Keyword(s):  
Distribution System ◽  
Distribution Systems ◽  
Voltage Stability ◽  
Optimal Allocation ◽  
Photovoltaic System ◽  
Solar Photovoltaic ◽  
Voltage Profile ◽  
Pv System ◽  
Solar Photovoltaic System ◽  
The Impact

AbstractA new meta-heuristic Pathfinder Algorithm (PFA) is adopted in this paper for optimal allocation and simultaneous integration of a solar photovoltaic system among multi-laterals, called interline-photovoltaic (I-PV) system. At first, the performance of PFA is evaluated by solving the optimal allocation of distribution generation problem in IEEE 33- and 69-bus systems for loss minimization. The obtained results show that the performance of proposed PFA is superior to PSO, TLBO, CSA, and GOA and other approaches cited in literature. The comparison of different performance measures of 50 independent trail runs predominantly shows the effectiveness of PFA and its efficiency for global optima. Subsequently, PFA is implemented for determining the optimal I-PV configuration considering the resilience without compromising the various operational and radiality constraints. Different case studies are simulated and the impact of the I-PV system is analyzed in terms of voltage profile and voltage stability. The proposed optimal I-PV configuration resulted in loss reduction of 77.87% and 98.33% in IEEE 33- and 69-bus systems, respectively. Further, the reduced average voltage deviation index and increased voltage stability index result in an improved voltage profile and enhanced voltage stability margin in radial distribution systems and its suitability for practical applications.

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