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.

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.

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

Comprehensive equation-based design of photovoltaic module to investigate its physical parameters and operating conditions used for small application

2020 ◽  
Vol 53 (5-6) ◽  
pp. 850-858 ◽  
Author(s):  
Adeel Saleem ◽  
Nain Liu ◽  
Hu Junjie ◽  
Atif Iqbal ◽  
Ali Waqar
Keyword(s):  
Green Energy ◽  
Operating Conditions ◽  
Modelling And Simulation ◽  
Photovoltaic System ◽  
Photovoltaic Module ◽  
Physical Parameters ◽  
Shunt Resistance ◽  
Simple Method ◽  
Partial Shading ◽  
Photovoltaic Array

Solar photovoltaic is clean and green energy for renewable power generation, which plays a vital role to fulfil the power shortage for any region. Photovoltaic array is quite expensive and has non-linear characteristics. Under varying conditions, it takes much time to give operating curves. Before mount photovoltaic for any application or at any location, there is a vital phase of analysis, modelling, and simulation of the photovoltaic system, which helps to understand the actual behaviour in real conditions. This paper emphasizes on the stepwise procedure of modelling and simulation for the photovoltaic panel, which is proposed to use for the small application. The proposed system provides a reliable, accurate, and simple method to model the photovoltaic system. It takes a flexible solar panel of 180 W as a reference model. The I–V and P–V characteristics are further investigated at different operating conditions such as a variation of irradiance from 1000 to 400 W/m2, variation of temperature from 15 to 70 °C, and vary shunt resistance from higher to low values. The equation-based modelling of the photovoltaic system is built in the MATLAB/Simulink. This methodology allows investigating the photovoltaic system on different operating conditions (varying temperature and irradiance) and physical parameters (ideality factor, series and shunt resistance) along with partial shading effect.

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