Enhanced power generation of partial shaded photovoltaic fields by forecasting the interconnection of modules

Pareek, Smita; Dahiya, Ratna

doi:10.1016/j.energy.2015.12.036

Cited by 70 publications

(28 citation statements)

References 37 publications

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“…Es por eso que existen nuevos métodos para la estimación de la potencia producida por sistemas FV con sombreado parcial, por ejemplo, las soluciones reportadas en [19], [20]. Por lo tanto, un campo abierto de investigación consiste en incluir esos métodos dentro de los algoritmos clásicos de forecasting para incrementar su precisión, incluyendo además el efecto de la reconfiguración de las conexiones entre los paneles FV, lo que permitirá proveer un análisis de viabilidad económica más realista de esta nueva solución.…”

Section: Conclusionesunclassified

Reconfiguración de paneles fotovoltaicos para reducción del consumo de hidrógeno en las celdas de combustible de sistemas híbridos

Montoya

Ramos‐Paja

Bolaños-Martínez

et al. 2017

TecnoL.

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Section: Conclusionesunclassified

Reconfiguración de paneles fotovoltaicos para reducción del consumo de hidrógeno en las celdas de combustible de sistemas híbridos

Montoya

Ramos‐Paja

Bolaños-Martínez

et al. 2017

TecnoL.

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“…In its application, a PV array may be partially shaded due to clouds, buildings, trees, and bird litters, etc. [3][4][5]. Under partial shade conditions, current mismatch and voltage mismatch can dramatically reduce the power generation of a PV array [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Reconfiguration Method to Extract More Power from Partially Shaded Photovoltaic Arrays with Series-Parallel Topology

Liu

Wang

2019

Energies

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A photovoltaic (PV) array is composed of several panels connected in series-parallel topology in most actual applications. However, partial shading of a PV array can dramatically reduce power generation. This paper presents a new reconfiguration method to extract more power from PV arrays under partial shade conditions. The method is designed using the effective maximum power point current and voltage of a PV panel. Its advantages involve (i) the method reconfigures the PV array without measuring the irradiance profile, and (ii) the reconfiguration is executed on the level of a PV module. Based on these two aspects, the method disperses the shade uniformly within the PV array, reducing the mismatch loss significantly and increasing power generation. The performance of the proposed method is investigated for different shade patterns and results show improved performance under partial shade conditions.

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“…Partial shading is generally induced over a PV module, string, or on a whole small PV system. It is due to cloud shadows, dust, permanent cracks on shields or surfaces; as well as shade due to various structures including trees, leaves, and buildings or towers [7]. Partial shading causes a reduction in the irradiance, and also distributes irradiance in a non-uniform pattern over the surface of various PV modules in an array [8,9].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Interconnection Configuration Schemes for PV Modules with Switched-Inductor Converters under Partial Shading Conditions

et al. 2019

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Partial shading on photovoltaic (PV) arrays reduces the overall output power and causes multiple maximas on the output power characteristics. Due to the introduction of multiple maximas, mismatch power losses become apparent among multiple PV modules. These mismatch power losses are not only a function of shading characteristics, but also depend on the placement and interconnection patterns of the shaded modules within the array. This research work is aimed to assess the performance of 4 × 4 PV array under different shading conditions. The desired objective is to attain the maximum output power from PV modules at different possible shading patterns by using power electronic-based differential power processing (DPP) techniques. Various PV array interconnection configurations, including the series-parallel (SP), total-cross-tied (TCT), bridge-linked (BL), and center-cross-tied (CCT) are considered under the designed shading patterns. A comparative performance analysis is carried out by analyzing the output power from the DPP-based architecture and the traditional Schottky diode-based architecture. Simulation results show the gain in the output power by using the DPP-based architecture in comparison to the traditional bypassing diode method.

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Enhanced power generation of partial shaded photovoltaic fields by forecasting the interconnection of modules

Cited by 70 publications

References 37 publications

Reconfiguración de paneles fotovoltaicos para reducción del consumo de hidrógeno en las celdas de combustible de sistemas híbridos

Reconfiguración de paneles fotovoltaicos para reducción del consumo de hidrógeno en las celdas de combustible de sistemas híbridos

Reconfiguration Method to Extract More Power from Partially Shaded Photovoltaic Arrays with Series-Parallel Topology

Evaluation of Interconnection Configuration Schemes for PV Modules with Switched-Inductor Converters under Partial Shading Conditions

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