Passive Monitoring of the Power Generated in Grid Connected PV Systems.

Firman, Andrés; Toranzos, V.; Vera, Luis Horacio; Busso, A.; Casa, J. de la

doi:10.1016/j.egypro.2014.10.028

Cited by 8 publications

(6 citation statements)

References 12 publications

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“…Monitoring a PV system is a well-known and widespread practice around world [21][22][23][24][25][26][27][28][29][30][31][32]. Monitoring all operational parameters of a PV solar plant (e.g., DC-AC voltages, currents, power, solar radiation, etc.)…”

Section: Monitoring Of Pv Power Plant-method Results and Discussionmentioning

confidence: 99%

One-Year Monitoring PV Power Plant Installed on Rooftop of Mineirão Fifa World Cup/Olympics Football Stadium

et al. 2017

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This paper presents results of one-year monitoring of AC side electrical parameters and the characterization of local solar radiation at the biggest rooftop PV Power Plant, with an installed capacity of 1.42 MWp, mounted at Mineirão Football Stadium in Brazil. This stadium is one of the sport facilities that hosted 2014 FIFA World Cup and Rio 2016 Summer Olympics Games in the country. Results showed how it is important to study and characterize the solar resource in the region of interest, based on historic data, to provide the understanding of solar radiation and thus project PV power plants with better performance. Furthermore, AC electrical data show the behavior of active, reactive and apparent powers and the influence of the PV system on the power factor at the local grid utility connection point. Finally, PV power plant performance data (as annual final yield, performance ratio and capacity factor) are also presented and compared with data from PVsyst software simulations. The results over the monitoring period were good considering the specificities of the stadium.

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Section: Monitoring Of Pv Power Plant-method Results and Discussionmentioning

confidence: 99%

One-Year Monitoring PV Power Plant Installed on Rooftop of Mineirão Fifa World Cup/Olympics Football Stadium

et al. 2017

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“…To deal with this problem, Firman et al developed methodologies to experimentally decide the peak power of a PV system using monitored measurements of the PV installation. 12 On the contrary, the easiest and most general execution of fault detection is implemented with the inverter on the AC side. Even in the absence of the monitoring system, the inverter may be utilized based on detected grid errors (voltage and frequency deviations) or matrix faults that could be unsafe (arc or ground faults), and thus the inverter may continue to ensure the safety of the installation.…”

Section: Introductionmentioning

confidence: 99%

CNN ‐based deep learning technique for improved H7 TLI with grid‐connected photovoltaic systems

Ramasamy¹,

Perumal²

2021

Int J Energy Res

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In this article, a three-phase transformerless inverter (TLI) for a solar photovoltaic (PV) system connected to a high-power grid are proposed, which has advantages of better performance and lower cost. The primary concern about the TLI is fluctuations in the common-mode voltage, which impacts switching frequency leakage current and grid interface system. An improved H7 common-mode voltage (CMV) clamped TLI with discontinuous pulse width modulation (DPWM) is designed using a conventional neural network (CNN)based deep learning approach. In this, a completely minimized leakage current is obtained to avoid CMV transients. The proposed PV-connected improved H7-TLI provides low-loss DC-side decoupling, which further reduces leakage current and isolation of the PV system during off-grid. In addition, the effects of several factors on CNN deep learning performance are explored, including training data size, image resolution, and network configuration. The proposed technique has the potential to be used in a test instrument for intelligent signal analysis or used in an artificial intelligence system. Switching loss is analyzed using proposed and existing H7 inverters under different load conditions. To verify the theoretical explanation, existing H7 inverters is analyzed by MATLAB/Simulink, and the outcomes are tested experimentally. The total harmonic distortion (THD) analysis of proposed and existing topology is analyzed and compared. The THD values of the existing and proposed topology are 3.74% and 3.23%, respectively.

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“…Esta ecuación es implícita en I, y es válida tanto para celdas como para módulo o generadores FV. Esto se consigue considerando tantos diodos interconectados en serie (N) como posea el dispositivo a modelar (Luque y Hegedus, 2011) (Firman et al, 2013) (Firman et al, 2014).…”

Section: Modelo Equivalente Eléctrico De Un Diodo De Cinco Parámetrosunclassified

“…(1), cuya finalidad es disminuir la cantidad de parámetros a determinar. Resultando que de los cinco parámetros, tres son determinados directamente trabajando sobre el perfil de la curva IV experimental en una condición dada y los otros dos son determinados en base a su comportamiento físico, hasta lograr un ajuste adecuado, teniendo en cuenta el punto de máxima potencia (Firman et al, 2013) (Osterwald, 2003). El modelo resultante es físicamente explicable y en consecuencia no solo pretende conseguir valores óptimos de ajuste desde un punto de vista geométrico.…”

Section: Modelo Equivalente Eléctrico De Un Diodo De Cinco Parámetrosunclassified

Caracterización Y Extracción De Parámetros Eléctricos en Módulos De Lámina Delgada

Anais Congresso Brasileiro De Energia Solar - CBENS

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Resumen. En el mercado mundial se observa un incremento, desde hace ya varios años, de los módulos fotovoltaicos (FV) de segunda generación o de lámina delgada. Con el objeto de analizarlos eléctricamente, el presente trabajo desarrolla y analiza en condiciones experimentales, una metodología destinada a la caracterización y extracción de parámetros eléctricos orientada a este tipo de módulos. Se describe la metodología para llevarlo a cabo de manera detallada y se realizan ajustes de tres tecnologías FV diferentes en base al trazado de su curva IV experimental, y se realiza la comparación entre ellas. Se analizan los resultados obtenidos y se los relaciona con el modelo equivalente eléctrico. Se presentan los desvíos entre el modelo logrado y los datos experimentales. Como conclusión, se obtiene que la metodología de extracción de parámetros representa y ajusta adecuadamente los módulos de segunda generación y que la misma puede ser empleada como primera etapa en una metodología de traslación a condiciones estándar de medida.

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Passive Monitoring of the Power Generated in Grid Connected PV Systems.

Cited by 8 publications

References 12 publications

One-Year Monitoring PV Power Plant Installed on Rooftop of Mineirão Fifa World Cup/Olympics Football Stadium

One-Year Monitoring PV Power Plant Installed on Rooftop of Mineirão Fifa World Cup/Olympics Football Stadium

CNN ‐based deep learning technique for improved H7 TLI with grid‐connected photovoltaic systems

Caracterización Y Extracción De Parámetros Eléctricos en Módulos De Lámina Delgada

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