Energy yield simulations of interconnected solar pv arrays

Kaushika, N.D.; Gautam, Nalin K.

doi:10.1109/tec.2002.805204

Cited by 243 publications

(64 citation statements)

References 9 publications

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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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show abstract

“…We focus on such PV array faults: short circuit fault, open circuit fault, mismatch fault and power loss fault due to low irradiance. Several typical PV array configurations have been proposed in both industry and academia [20][21][22][23]. These configurations have different tolerance for the adverse work environment [24].…”

Section: Photovoltaic Systemmentioning

confidence: 99%

Photovoltaic Array Fault Detection by Automatic Reconfiguration

Dong

Cai

et al. 2017

Energies

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Photovoltaic (PV) system output electricity is related to PV cells' conditions, with the PV faults decreasing the efficiency of the PV system and even causing a possible source of fire. In industrial production, PV fault detection is typically laborious manual work. In this paper, we present a method that can automatically detect PV faults. Based on the observation that different faults will have different impacts on a PV system, we propose a method that systematically and iteratively reconfigures the PV array until the faults are located based on the specific current-voltage (I-V) curve of the (sub-)array. Our method can detect several main types of faults including open-circuit faults, mismatch faults, short circuit faults, etc. We evaluate our methods by Matlab/Simulink-based simulation. The results show that the proposed methods can accurately detect and classify the different faults occurring in a PV system.

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“…The MC method involves generating a uniformly distributed solar irradiance . For each , the corresponding maximum power is calculated numerically by solving (2), (6), and (7). That is, a series of random numbers 1 , 2 , 3 , .…”

Section: Monte Carlo Simulationmentioning

confidence: 99%

“…As partial shading exhibits some degree of uncertainty, efforts have been made to extend traditional analysis into cases where the pattern, number, and shading percentage of shaded PV modules may vary at random. The works of Gautam and Kaushika [3][4][5][6] considered several shading patterns in PV arrays of different connection configurations. A randomly generated shading pattern was tested in Wang and Hsu's study [7].…”

Section: Introductionmentioning

confidence: 99%

Probabilistic Modeling of Partial Shading of Photovoltaic Arrays

Wang

Sheu

2015

International Journal of Photoenergy

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The probabilistic modeling technique is used in this paper to ascertain the performance of energy conversion of a photovoltaic (PV) array under the influence of partial shading. Three cases of increasing complexity are studied in this paper. The first case is to find the probability density function (pdf) of the maximum power output (MPO) of a single PV module exposed to a random level of solar irradiance. Given that the probability distribution of solar irradiance is knowna priori, the pdf of the MPO of the PV module is derived analytically. A Monte Carlo simulation is then conducted to validate the analysis. This is followed in the second case by studying the MPO of an array composed of two series PV modules, each exposed to a random and independent level of irradiance. The third case further involves the effects of bypass diodes which are commonly installed to reduce partial shading losses.

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Energy yield simulations of interconnected solar pv arrays

Cited by 243 publications

References 9 publications

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

Photovoltaic Array Fault Detection by Automatic Reconfiguration

Probabilistic Modeling of Partial Shading of Photovoltaic Arrays

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