A shade dispersion scheme using Latin square arrangement to enhance power production in solar photovoltaic array under partial shading conditions

2018 ◽  
Vol 10 (5) ◽  
pp. 053506 ◽  
Author(s):  
Gurusamy Madhusudanan ◽  
Subramaniam Senthilkumar ◽  
I. Anand ◽  
Padmanaban Sanjeevikumar
Keyword(s):  
Latin Square ◽  
Power Production ◽  
Solar Photovoltaic ◽  
Partial Shading ◽  
Photovoltaic Array

scholarly journals Modeling and Relative Research of Solar Photovoltaic Array Topologies Under Partial Shading Conditions

2019 ◽  
Vol 8 (11) ◽  
pp. 340-346
Keyword(s):  
Fill Factor ◽  
Electrical Power ◽  
Solar Photovoltaic ◽  
Power Losses ◽  
Partial Shading ◽  
Photovoltaic Array ◽  
Pv Array ◽  
Pv Module ◽  
And Performance ◽  
Zigzag Type

The electrical power generation from solar photo voltaic arrays increases by reducing partial shading effect due to the deposition of dust in modules, shadow of nearby buildings, cloud coverage leads to mismatching power losses. This paper gives the detailed analysis of modeling, simulation and performance analysis of different 4x4 size PV array topologies under different irradiance levels and to extract output power of panels maximum by reducing the mismatching power losses. For this analysis, a comparative study of six PV array topologies are Series, Parallel, Series-Parallel, Total-Cross-Tied, Bridge Linked and Honey-Comb are considered under various shading conditions such as one module shading, one string shading, zigzag type partial shading and total PV array partially shaded cases. The performance of above six topologies are compare with mismatching power losses and fill-factor. For designing and simulation of different PV array configurations/topologies in MaTLab/Simulink, the LG Electronics LG215P1W PV module parameters are used in all PV modules.

scholarly journals Analyse the Effects of Partial Shading Conditions on Solar Photovoltaic Panels

2021 ◽  
Vol 9 (VI) ◽  
pp. 4167-4172
Author(s):  
Prateek Singh
Keyword(s):  
Reverse Bias ◽  
The Other ◽  
Solar Photovoltaic ◽  
Partial Shading ◽  
Photovoltaic Panels ◽  
Photovoltaic Array ◽  
Pv Cell ◽  
Temperature Environment ◽  
In Series ◽  
A Current

In a solar photovoltaic array, the shadow may cover its PV cells. In partial shading conditions, the PV characteristic gets more complicated with multiple numbers of peaks. The aim of this model is to analyses the different partial shading situations and also their effects on the operation. This is done by simulation in MATLAB/Simulink2015a software. In this, three PV panels of 250 watt are connected in series for analysing the output. Different irradiances with specified temperature environment are provided to the panel to form the I-V and P-V curve. Due to shading, the output of the panels gets decreased if there is increment in the shaded portion and due to this in a PV strings there will be a current mismatch while in the parallel strings there will be a voltage mismatch. To stop the damage from the other side i.e., from reverse bias, we use bypass diodes. These diodes are placed parallel to each PV cell so that voltage does not become negative and we obtain a good amount of output in case of partial shading also.

scholarly journals A Jigsaw Puzzle based Reconfiguration Technique for Enhancing Maximum Power in Partial Shaded Hybrid Photovoltaic Array

2021 ◽  
Author(s):  
Palpandian M ◽  
Prince Winston David ◽  
Rajvikram Madurai Elavarasan ◽  
Pounraj Periyasamy ◽  
Rishi Pugazhendhi ◽  
...  
Keyword(s):  
Performance Enhancement ◽  
Latin Square ◽  
Maximum Power ◽  
Global Maximum ◽  
Jigsaw Puzzle ◽  
Partial Shading ◽  
Photovoltaic Array ◽  
Pv Array ◽  
Mismatch Loss ◽  
Power Point

Abstract The Photovoltaic (PV) module subjected to partial shading exhibits multiple peaks in the power-voltage characteristics leading to mismatch losses. This loss is a function of module interconnection, shading area and shading pattern. The hybrid configuration has found to be superior to improve the performance of the PV array during partial shading conditions. This work aims to minimize the mismatch loss by using an optimized jigsaw puzzle based reconfiguration technique. The physical position of the modules is rearranged based on the jigsaw puzzle pattern without altering the electrical connections. The performance of the proposed jigsaw puzzle pattern is configured on different interconnection schemes like total-cross-tied, series-parallel total-cross-tied, bridge-link total-cross-tied and honey comb total-cross-tied. For the different shading patterns, the performance of the proposed reconfiguration technique is compared with the existing puzzle based reconfiguration technique schemes such as ken-ken, skyscraper, odd-even and latin square in terms of global maximum power point, power loss, mismatch loss, fill factor, execution ratio and performance enhancement ratio. To validate the results, the performance of the proposed reconfiguration technique is tested in MATLAB/Simulink environment and experiment setup for a 4x4 PV array. The proposed jigsaw puzzle based reconfiguration technique mitigates the occurrence of multiple local power point on the power-voltage characteristics. Hence, the simulation results show the proposed jigsaw based reconfiguration technique improves the output power by 14.01% compared to the existing reconfiguration technique under partial shaded conditions. The effectiveness of the jigsaw puzzle arrangement is also validated experimentally and the results are presented in this paper.

scholarly journals A Comprehensive Review and Analysis of Solar Photovoltaic Array Configurations under Partial Shaded Conditions

2012 ◽  
Vol 2012 ◽  
pp. 1-16 ◽  
Author(s):  
R. Ramaprabha ◽  
B. L. Mathur
Keyword(s):  
Computational Effort ◽  
Energy Output ◽  
Solar Photovoltaic ◽  
Power Losses ◽  
Shunt Resistance ◽  
Partial Shading ◽  
Comprehensive Review ◽  
Photovoltaic Array ◽  
Proposed Model ◽  
Sufficient Degree

The aim of this paper is to investigate the effects of partial shading on energy output of different Solar Photovoltaic Array (SPVA) configurations and to mitigate the losses faced in Solar Photovoltaic (SPV) systems by incorporating bypass diodes. Owing to the practical difficulty of conducting experiments on varied array sizes, a generalized MATLAB M-code has been developed for any required array size, configuration, shading patterns, and number of bypass diodes. The proposed model which also includes the insolation-dependent shunt resistance can provide sufficient degree of precision without increasing the computational effort. All the configurations have been analyzed and comparative study is made for different random shading patterns to determine the configuration less susceptible to power losses under partial shading. Inferences have been drawn by testing several shading scenarios.

Development of arduino assisted data acquisition system for solar photovoltaic array characterization under partial shading conditions

2021 ◽  
Vol 92 ◽  
pp. 107175
Author(s):  
Rupendra Kumar Pachauri ◽  
Om Prakash Mahela ◽  
Baseem Khan ◽  
Ashok Kumar ◽  
Sunil Agarwal ◽  
...  
Keyword(s):  
Data Acquisition ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Solar Photovoltaic ◽  
Partial Shading ◽  
Photovoltaic Array
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