Mathematical analysis of total-cross-tied photovoltaic array under partial shading condition and its comparison with other configurations

Mohammadnejad, Shahram; Khalafi, Ali; Ahmadi, S.

doi:10.1016/j.solener.2016.03.058

Cited by 114 publications

(53 citation statements)

References 12 publications

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“…The results prove that TCT configuration achieved the optimum output power performance under most shading conditions. Moreover, [7] shows a mathematical analysis of TCT PV array configuration under partial shading conditions and its comparison with other PV array configurations such as BL and honey-comb (HC) configurations. Y. Wang & P.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

“…The examined indicators has not been fully covered in previously published articles such as [6][7][8][9][10]. Additionally, this research does not only examine several partial shading conditions affecting PV systems but also the modelling and the analysis of several faulty PV conditions (In-active PV modules) affecting various PV array configurations.…”

Section: A C C E P T E D Accepted Manuscriptmentioning

confidence: 99%

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Seven indicators variations for multiple PV array configurations under partial shading and faulty PV conditions

et al. 2017

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The goal of this paper is to model, compare and analyze the performance of multiple photovoltaic (PV) array configurations under various partial shading and faulty PV conditions. For this purpose, a multiple PV array configurations including series (S), parallel (P), series-parallel (SP), total-cross-tied (TCT) and bridge-linked (BL) are carried out under several partial shading conditions such as, increase or decrease in the partial shading on a row of PV modules and increase or decrease in the partial shading on a column of PV modules. Additionally, in order to test the performance of each PV configuration under faulty PV conditions, from 1 to 6 Faulty PV modules have been disconnected in each PV array configuration. Several indicators such as short circuit current (I sc ), current at maximum power point (I mpp ), open circuit voltage (V oc ), voltage at maximum power point (V mpp ), series resistance (R s ), fill factor (FF) and thermal voltage (V te ) have been used to compare the obtained results from each partial shading and PV faulty condition applied to the PV system. MATLAB/Simulink software is used to perform the simulation and the analysis for each examined PV array configuration.

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Section: Accepted Manuscriptmentioning

confidence: 99%

Section: A C C E P T E D Accepted Manuscriptmentioning

confidence: 99%

Seven indicators variations for multiple PV array configurations under partial shading and faulty PV conditions

et al. 2017

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“…In response, most of the PV modules are equipped with a bypass diode to minimize the effects of such issues. [15][16][17] Besides the typical SP topology, topologies such as total cross-tied (TCT), [18][19][20] bridge link (BL), 21 and honeycomb (HC) 22 are being considered and analyzed in different partial shading conditions. [22][23][24][25][26][27][28][29][30][31] Performance of each topology varies under different shading patterns, and their performance has proven to be better than the regular SP topology.…”

Section: Introductionmentioning

confidence: 99%

Improving performance of photovoltaic panel by reconfigurability in partial shading condition

et al. 2020

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A photovoltaic (PV) panel operating in partial shading condition results in lowering its power efficiency. In a worst-case scenario, it can create a hotspot that can eventually cause a fire hazard. To address this issue, bypass diodes are connected across a group of PV cells having series-parallel (SP) configuration. Owing to the placement bypass diodes in the PV panel, it can circumvent unshaded PV cells. Hence, topologies such as total cross-tied (TCT), bridge link (BL), and honeycomb (HC) for PV panels are proposed besides SP to reduce the effect of partial shading. Each configuration demonstrated advantages over SP topology. However, many of these configurations lack a mechanism to isolate PV cells that are affected due to the hotspot. Recently developed complementary metal oxide semiconductor (CMOS)-embedded PV panel has been shown to offer many other benefits besides effectively dealing with shading conditions. We are comparing the performance of CMOS-embedded PV panel under various partial shading conditions with PV panel with fixed configuration topologies, such as SP, TCT, BL, and HC. SPICE-based equivalent PV modeling technique is used in this research to compare the maximum power generated in different topologies under changing partial shading conditions. Results show that CMOS-embedded PV panels are more efficient in coping with partial shading conditions compared to any other contemporary fixed topologies. © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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“…The present paper comprises literature review of the most appropriate research papers, which are studied for obtaining the research gap. The various types of PV array configurations are reviewed in their performance, reliability, accuracy, robustness, efficiency, and execution of each configuration …”

Section: Introductionmentioning

confidence: 99%

“…New configurations such as SP‐TCT and Su‐Do‐Ku configurations are considered for the investigation under shading conditions. The SP, TCT, BL, HC, optimal TCT, and novel TCT PV array configurations are considered for performance investigation under PSCs, in which recently proposed novel TCT configuration has shown better response in maximum power at GMPP, minimum power loss, improved FF, and higher performance ratio …”

Section: Introductionmentioning

confidence: 99%

Shade dispersion-based photovoltaic array configurations for performance enhancement under partial shading conditions

Pachauri

Yadav

Chauhan³

et al. 2018

Int Trans Electr Energ Syst

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Summary Recently, the partial shading conditions (PSCs) and its impact on the performance of photovoltaic (PV) systems have motivated to explore novel approach to minimize the PSC adverse effect. In this context, the existing PV arrays are reconfigured to overcome the effects of PSCs. This paper presents a comprehensive and comparative study of existed total cross‐tied (TCT) configuration with a novel Latin square puzzle‐based TCT configuration called Latin square‐TCT (LS‐TCT) to minimize the shading effects. An investigation is carried out based on the considered partial shading patterns (progressive bottom to top, left to right, diagonal, multistory building, and zigzag shading cases) in global maximum power point (GMPP), power loss, and fill factor. The performance of LS‐TCT configuration is compared with benchmark TCT configuration. It is noticed that the proposed LS‐TCT configuration has maximum power of 2279 W as compared with 1976 W for TCT configuration at global maximum power point for a shading case. Further, it is also shown that the minimum power losses in proposed LS‐TCT configuration are reduced to 330 W as compared with 633 W for TCT configuration. Moreover, the fill factor in the proposed LS‐TCT configuration is 9.91 as compared with 8.59 for TCT configuration under the considered PSCs. Overall, the performance of LS‐TCT configuration is found to be superior as compared with TCT configuration.

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Mathematical analysis of total-cross-tied photovoltaic array under partial shading condition and its comparison with other configurations

Cited by 114 publications

References 12 publications

Seven indicators variations for multiple PV array configurations under partial shading and faulty PV conditions

Seven indicators variations for multiple PV array configurations under partial shading and faulty PV conditions

Improving performance of photovoltaic panel by reconfigurability in partial shading condition

Shade dispersion-based photovoltaic array configurations for performance enhancement under partial shading conditions

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