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Experimental analysis to extract maximum power from PV array reconfiguration under partial shading conditions

Published on Feb 1, 2019in Engineering Science and Technology, an International Journal
· DOI :10.1016/j.jestch.2017.11.013
Rupendra Pachauri4
Estimated H-index: 4
(UPES: University of Petroleum and Energy Studies),
Rajesh Singh1
Estimated H-index: 1
(UPES: University of Petroleum and Energy Studies)
+ 2 AuthorsSushabhan Choudhury9
Estimated H-index: 9
(UPES: University of Petroleum and Energy Studies)
Abstract
Abstract An investigation of auto-reconfiguration scheme for interchanging the electrical connections of photovoltaic (PV) array of 3 × 3 size, from series-parallel (SP) to total cross-tied (TCT) configuration under partial shading conditions (PSCs) is presented. The progressive increment shading patterns- 1, 2 and 3 are considered for the extensive comparative analysis for experimental and MATAB/Simulink system. The experimental system comprises three sections: under section I, four relays are used in 3 × 3 PV modules matrix, under section II, an Arduino based relay circuit operation control scheme is designed to modify the electrical connections of PV module and the wireless based User End Operating System (UEOS) is discussed in section III. Furthermore, the mathematical modeling of PV array is validated under the environment of MATLAB simulation to procured. The performance analysis of the system is successfully carried out in terms of power and voltage at global maximum power point (GMPP), power losses and fill factor (FF).
  • References (26)
  • Citations (1)
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References26
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#1Pankaj Yadav (Gautam Buddha University)H-Index: 2
#2Amit Kumar (Gautam Buddha University)H-Index: 3
Last. Vinod Kumar Yadav (Galgotias University)H-Index: 11
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In this paper, a self-designed PV module of Series–Parallel (SP) configuration has been developed using mono-crystalline solar cells for performance investigations under partial shading and dust accumulation conditions. For this study two moving shading patterns (horizontal and diagonal) and four dust samples of different particle properties have been considered at three irradiation levels. Comprehensive investigations are carried out on the considered system and results are obtained in terms of...
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#1Shahram Mohammadnejad (IUST: Iran University of Science and Technology)H-Index: 10
#2Ali Khalafi (IUST: Iran University of Science and Technology)H-Index: 2
Last. S. Morteza Ahmadi (IUST: Iran University of Science and Technology)H-Index: 2
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Abstract The goal of this paper is to investigate total-cross-tied (TCT) configuration under partial shading condition. A full investigation requires mathematical analysis and simulation. An accurate mathematical analysis gives us a better understanding of how partial shading affects the output curves of the solar cell, so we first mathematically analyze the TCT ( 2 × 2 ) configuration under different partial shading conditions and then we check the mathematically analysis accuracy through Matla...
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#1Henry Braun (ASU: Arizona State University)H-Index: 6
#2S. T. Buddha (ASU: Arizona State University)H-Index: 3
Last. Devarajan Srinivasan (ASU: Arizona State University)H-Index: 5
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As more utility scale photovoltaic (PV) power plants are installed, there is a need to improve monitoring and management of PV arrays. A procedure is presented here for optimizing the electrical configuration of a PV array under a variety of operating conditions. Computer simulations and analysis with synthetic and real data are presented in this paper. The performance of the optimization system is evaluated for a variety of partial shading conditions using a SPICE circuit simulator. In general,...
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#1Faiza Belhachat ('ENS Paris': École Normale Supérieure)H-Index: 4
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Abstract The main purpose of this paper is to model, study and analyze the performance of different photovoltaic (PV) array configurations under various partial shading conditions (PSC). The aim is to improve the efficiency of PV systems in general by reducing mismatch losses and to select the most appropriate PV array configuration which provides the best performance i.e. the highest maximum power and hence the lowest relative power losses under partial shading conditions. For this purpose, a c...
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#1Paula dos Santos Vicente (UNIFEI: Universidade Federal de Itajubá)H-Index: 2
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This paper presents a dynamic reconfiguration method for electrical connections in a Series-Parallel connected photovoltaic array under partial shading conditions. It is desirable to extract the maximum energy from the array, but it does not occur in situations where the modules have different points of operation caused by shading. The proposed method is then characterized by the maintenance of the PV array dimensions, that is; no module is removed or added to the array. Furthermore, the control...
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#1S. Malathy (SSN: Sri Sivasubramaniya Nadar College of Engineering)H-Index: 1
#2R. Ramaprabha (SSN: Sri Sivasubramaniya Nadar College of Engineering)H-Index: 2
It is a well documented fact that partial shading increases mismatch losses and reduces the output of a photovoltaic (PV) system. The reduction in output is not proportional to the shaded area but depends on various other factors like the location of the shaded panel within the array, the interconnection among the panels and the shade geometry. The mismatch losses can be reduced either by altering the interconnection scheme or the location of panels in accordance with the shade. These dynamic me...
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#1Smita Pareek (National Institute of Technology, Kurukshetra)H-Index: 5
#2Ratna Dahiya (National Institute of Technology, Kurukshetra)H-Index: 10
Abstract The mismatch losses in PV modules are mainly because of the partial shading and can be reduced by altering the topology of the modules within the array. The modules can be interconnected in many ways like Series Parallel (SP), Bridge Linked (BL) and Total Cross Tied (TCT) connection in an array to increase the output power. In this paper the best topology is suggested for a particular pattern of easy-to-predict shade on PV fields.
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#1Luis Fialho (University of Évora)H-Index: 6
#2Rui Melício (University of Évora)H-Index: 18
Last. Manuel Collares-Pereira (University of Évora)H-Index: 22
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Abstract This paper is on the five-parameter modeling for photovoltaic systems. Normally, the technical information for photovoltaic panels is too restricted to identify the five parameters. So, an undemanding heuristic method is adopted in this paper, requiring only information on open circuit, maximum power point and short circuit conditions. The I-V and the P-V curves for a series connected monocrystalline photovoltaic system is obtained from the parameters identification using the heuristic ...
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Partial shading of a photovoltaic array is the condition under which different modules in the array experience different irradiance levels due to shading. This difference causes mismatch between the modules, leading to undesirable effects such as reduction in generated power and hot spots. The severity of these effects can be considerably reduced by photovoltaic array reconfiguration. This paper proposes a novel mathematical formulation for the optimal reconfiguration of photovoltaic arrays to m...
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#1Kun Ding (Hohai University)H-Index: 2
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The performance of a photovoltaic (PV) module is mostly affected by array configuration, irradiance, and module temperature. It is important to understand the relationship between these effects and the output power of the PV array. This paper presents a MATLAB-Simulink-based PV module model which includes a controlled current source and an S-Function builder. The modeling scheme in S-Function builder is deduced by some predigested functions. Under the conditions of nonuniform irradiance, the mod...
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Abstract An experimental examination has been performed on the performance assessment of different shading shapes on photovoltaic panels by using energy-exergy analysis methods in this study. The problem is important due to decreasing of performance of PV panel with shading effect. A non-transparent material and powder were used for static shading while the time-varying shading effect of a chimney for dynamic shading was applied on to the system. Novelty of the work is to use diagonal shading on...
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#1Ahmed AlMansurH-Index: 3
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Partial shading causes multiple peak points in power-voltage (P-V) curves of photovoltaic (PV) arrays, and that results in mismatch power loss (MML). In vast PV arrays, output power decreases significantly with increasing the shading size. The shading effects can be minimized by changing the array. This paper investigates the performances of different PV array configurations to obtain maximum output power for six different sizes of shading patterns. The experimental investigation is carried out ...
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#1Chayut TubniyomH-Index: 1
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Configurations of photovoltaic (PV) modules, such as series-parallel (SP), bridge-linked (BL), and total cross-tied (TCT) configurations, always utilize a number of connecting switches. In a simulation, the ideal switch with no loss is used to optimize the reconfiguration method for a solar PV array. However, in practice, the switches are non-ideal, causing losses and resulting in a decrease in the total output power of the PV array. In this work, MATLAB/Simulink (R2016a) was employed to simulat...
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