Effects of mismatch losses in photovoltaic arrays

Chamberlin, Charles; Lehman, Peter; Zoellick, James; Pauletto, G.

doi:10.1016/0038-092x(94)00120-3

Cited by 80 publications

(25 citation statements)

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“…However, the question arises whether the choice of the sorting criterion has an effect on the form and width of the distribution of the module power, which would be relevant for the industrial manufacture and the module mismatch on array level [4,5].…”

Section: Resultsmentioning

confidence: 99%

Impact of bifacial illumination and sorting criteria of bifacial solar cells on module power

Sabater¹,

Wöhrle²,

Greulich³

et al. 2018

AIP Conference Proceedings

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Abstract.As the market share of bifacial cells and modules grows, solar cells measurements under bifacial illumination are increasingly becoming a focus of interest. In this work, we present an analysis of four different sorting criteria for bifacial solar cells with the aim of evaluating the impact of these criteria on the power of the modules assembled with the sorted cells. First, we develop a simulation model for bifacial modules based on the two-diode model. Secondly, we generate a representative virtual data bank made up of 50000 cells, whose parameters are determined in account with empirical parameter distributions measured on a group of 300 bifacial solar cells with passivated emitter and rear (PERC) manufactured industrially. Third, we sort and bin all cells according to the current density under front illumination at maximum power point (MPP) (jmpp . With respect to the average module power, a very small gain of less than 2 W (in the most extreme illumination scenario) can be achieved if a bifacial instead of a monofacial sorting parameter is taken as sorting criterion. However, a strong effect on the distribution of the module power is manifested, obtaining either one homogeneous group of modules with broad power distribution or several classes/bins of modules, depending of the cell sorting criterion. Therefore, the choice of the sorting criteria of the cells depends on the interest of the solar manufacturers and has a great potential to reduce module mismatch in PV arrays.

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Section: Resultsmentioning

confidence: 99%

Impact of bifacial illumination and sorting criteria of bifacial solar cells on module power

Sabater¹,

Wöhrle²,

Greulich³

et al. 2018

AIP Conference Proceedings

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“…re a class of computational ed random sampling to compute it takes different possibilities of culates the value of dependent see how the dependent variable different value of independent n defined in eq (5), dependent independent variables. environment et the results of the Monte Carlo and "runif" used to create the rm distribution of independent , min and the mean value is per [6].The paper collected data "for" loop in the tool used to onte Carlo. stribution for all independent on in I and P is found.…”

Section: Cmentioning

confidence: 99%

Statistical analysis of mismatch error in series and parallel connection of photovoltaic

Chauhan¹,

Liu²,

Patil

et al. 2011

2011 Annual IEEE India Conference

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The energy need of the world driv sources of energy. Energy harnessing from sola interest not only from its potential, but also b source.Understanding problems in designing a solar great value. Manufacturing process leads to m array. The mismatch error need to address w solar PV system. Estimation of how much is mismatch is needed before hand. This paper addresses the problem in a step b talks of a method to model a solar PV equatio then finds out the statistical data through M Monte Carlo algorithm to find out error prop concludes how to use analytical method to ge of mismatch error. This analytic method can b to a system designer .

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“…Mismatch loss is the difference in maximum power output of the array and the sum of maximum power outputs of the constituent modules [6]. This phenomenon causes large power losses in PV arrays.…”

Section: Introductionmentioning

confidence: 99%

Optimal Su-Do-Ku based interconnection scheme for increased power output from PV array under partial shading conditions

et al. 2015

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Partial shading is a common phenomenon in PV arrays. They drastically reduce the power output because of mismatch losses, which are reliant on the shape of the shade as well as the locations of shaded panels in the array. The power output can be improved by distributing the shade over various rows to maximize the current entering the node. A Su-Do-Ku configuration can be used to rearrange the physical locations of the PV modules in a total cross tied PV array with the electrical connections left unchanged. However, this arrangement increases the length of the wire required to interconnect the panels thus increasing the line losses. In this paper, an improved Su-Do-Ku arrangement that reduces the length of the wire required for the connection is proposed. The system is designed and simulated in a Matlab/Simulink environment for various shading patterns and the efficacies of various arrangements are compared. The results prove that the power output is higher in the proposed improved Su-DoKu reconfiguration technique compared to the earlier proposed Su-Do-Ku technique.

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Effects of mismatch losses in photovoltaic arrays

Cited by 80 publications

References 1 publication

Impact of bifacial illumination and sorting criteria of bifacial solar cells on module power

Impact of bifacial illumination and sorting criteria of bifacial solar cells on module power

Statistical analysis of mismatch error in series and parallel connection of photovoltaic

Optimal Su-Do-Ku based interconnection scheme for increased power output from PV array under partial shading conditions

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