Impact of the aging of a photovoltaic module on the performance of a grid-connected system

Azizi, Amina; Logerais, Pierre‐Olivier; Omeiri, Amar; Amiar, Adel; Charki, Abdérafi; Riou, O.; Delaleux, Fabien; Durastanti, Jean-Félix

doi:10.1016/j.solener.2018.09.022

Cited by 45 publications

(17 citation statements)

References 23 publications

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“…The generated output current of the PV cell I P V can be modeled mathematically according to Fig. 2 as following [25]: The generated PV current can be modeled as follows:…”

Section: A Pv Modellingmentioning

confidence: 99%

An Efficient Reactive Power Dispatch Method for Hybrid Photovoltaic and Superconducting Magnetic Energy Storage Inverters in Utility Grids

2020

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The intermittent property and increased grid restrictions have become the most critical elements for increasing penetration levels of clean renewable energy sources (RESs). Smart inverters with combined RESs integration and reactive power support for utility grids have recently found widespread applications due to their techno-economic benefits. In smart inverters, the distribution-static compensator (DSTATCOM) functionality is inherently integrated to the RESs inverters. However, optimized reactive power-sharing between these inverters has become a big issue for the control systems of utility grids. There are numerous existing attempts presented in the literature for addressing these challenges, although they disadvantage low efficiency, uneven sharing, complex implementations, and/or costly added devices. Therefore, this paper proposes an efficient reactive power dispatch method between hybrid renewable energy generation and energy storage systems. The proposed method enhances the energy efficiency of the utility grid by adopting the reactive power share between interfacing inverters according to the estimated power losses. Besides, the proposed method enhances the reliability of smart inverters by relieving their thermal stresses through adopting their reactive power share according to the estimated power losses. The hybrid photovoltaic (PV) generation with superconducting magnetic energy storage (SMES) systems is selected as a case study for validating the new proposed reactive power dispatch method. The results, comprehensive discussions, and performance comparisons have verified the superior performance of the new proposed reactive power dispatch method. INDEX TERMS distribution static compensator, photovoltaic (PV), reactive power dispatch, smart inverters, superconducting magnetic energy storage (SMES)

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“…The generated output current of the PV cell I P V can be modeled mathematically according to Fig. 2 as following [25]: The generated PV current can be modeled as follows:…”

Section: A Pv Modellingmentioning

confidence: 99%

An Efficient Reactive Power Dispatch Method for Hybrid Photovoltaic and Superconducting Magnetic Energy Storage Inverters in Utility Grids

2020

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“…where I ph,n is the nominal photo-current, k 1 corresponds to the temperature coefficient of the short-circuit current, ∆T = T m − T n with T m being the module temperature and T n = 25 • C as the nominal temperature, G a is the irradiance, and G n = 1000 W/m 2 is the nominal irradiance (Azizi et al, 2018).…”

Section: Figure 1 Electrical Equivalent Circuit Of Pv Cellmentioning

confidence: 99%

Performance of Photovoltaic Modules After an Accelerated Thermal Cycling Degradation Test

et al. 2019

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Typically, datasheets of photovoltaic (PV) modules state that the guaranteed power production remains constant for a certain period of time and after this point, a linear reduction begins reaching an estimated 80% of the original rated power. Moreover, literature reports that the degradation of PV modules reaches less than 1% per year. In this regard, after 20 years of operation a typical PV module will deliver approximately 20% less energy than a the beginning of its life. In this article, the results of an accelerated thermal cycling degradation test are compared to its brand new conditions. These results demonstrate that although the performance among the PV modules is variable when new, after the cycling test the performance of the degraded PV modules is similar. In this case, the power reduction of the degraded module varies from 1.4% up o 7.6% when compared to the initial condition. Furthermore, an Electrochemical Impedance Spectroscopy (EIS) analysis demonstrates that at high frequencies the results are practically the same regardless if the panel is new or degraded, but at low frequencies the variation of the impedance is notorious.

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“…The electrical parameters and deviations related to the PV design and the numerical modeling are associated with climatic conditions, and degradations and errors in PV components, among other things. Innumerable variables, such as sensitivity to the PV components, environmental conditions (RAHMAN et al, 2015), and the consumption period, can cause this deterioration (AZIZI et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Implementação de sistema inteligente de aquisição de dados com indicadores de desempenho para miniusina solar fotovoltaica / Implementation of intelligent data acquisition system with performance indicators for solar photovoltaic mini-plant

Soares¹,

Bastos²,

Guimarães³

2021

BJDV

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The electricity generation performance in a photovoltaic system can be improved by precise monitoring of electrical and meteorological parameters. Disruptions in electrical parameters are caused by unreliable climatic variables, degradation of the photovoltaic system, and errors. The main purpose of the present work is the development of a data acquisition and monitoring system for time series data storage for subsequent analyses of the solar photovoltaic mini-plant located at the Poços de Caldas campus of the Federal University of Alfenas. The developed system exhibits the collected parameters as well as the performance metrics calculated by numerical modeling. For this purpose, a data logger, web server, REST API and a responsive web application were created.

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Impact of the aging of a photovoltaic module on the performance of a grid-connected system

Cited by 45 publications

References 23 publications

An Efficient Reactive Power Dispatch Method for Hybrid Photovoltaic and Superconducting Magnetic Energy Storage Inverters in Utility Grids

An Efficient Reactive Power Dispatch Method for Hybrid Photovoltaic and Superconducting Magnetic Energy Storage Inverters in Utility Grids

Performance of Photovoltaic Modules After an Accelerated Thermal Cycling Degradation Test

Implementação de sistema inteligente de aquisição de dados com indicadores de desempenho para miniusina solar fotovoltaica / Implementation of intelligent data acquisition system with performance indicators for solar photovoltaic mini-plant

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