Experimental evaluation of 8kW grid-connected photovoltaic system in Egypt

Elkholy, A.; Fahmy, Faten H.; El‐Ela, Adel A. Abou; Nafeh, Abd El-Shafy A.; Spea, S.R.

doi:10.1016/j.jesit.2015.10.004

Cited by 32 publications

(19 citation statements)

References 2 publications

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“…The values recorded before and after the implementation of the photovoltaic system do not present significant differences for the lines U 2 and U 3 , in line U 1 , an increase 22% was obtained. This increase is consistent with that reported by some authors [64] and similar to that reported by [63], who found values between 2 and 38% when studying an experimental network of 8 kWp. The power factor was not affected by the operation of the photovoltaic system (Table 8), and a maximum value of 0.98 and a minimum of 0.85 were obtained, in compliance with the guidelines of NTC 5001.…”

Section: Power Quality At the Point Of Common Couplingsupporting

confidence: 93%

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Study of Power Quality at the Point of Common Coupling of a Low Voltage Grid and a Distributed Generation System of 7.8 kWp in a Tropical Region

et al. 2018

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In this paper we analyze an experimental 1000 kWh/month distributed generation system in a tropical region connected to a point of common coupling in a low voltage grid that was characterized according to NTC 5001. This photovoltaic system has 7.8 kWp and uses 30 polycrystalline silicon-panels of 260 Wp each. Its maximum energy produced was 850 kWh/month, equivalent to 72.65% of the installed capacity. Finally, there was an increase of 2% with respect to the minimum voltage value that was recorded. The voltage unbalance decreases between 3.5 and 70% and voltage harmonics in each line increased by 7% on line U1, 0.8% on U2, 3% on U3 and current harmonics have a 22% increase. Likewise, the total active and reactive power were increased by 58% and 42% respectively, and the thermography study allowed to establish a temperature increase at the point of common coupling of 7.5%. Therefore, it is expected that this paper can serve as a reference for the application of Colombian law 1715 in solar energy.

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Section: Power Quality At the Point Of Common Couplingsupporting

confidence: 93%

“…Is possible to find situations where the reactive electrical charges at the connection point interfere with the harmonic current. Another reference also found an increase between 0.7% and 2.5% in an 8 kWp system [63].…”

Section: Power Quality At the Point Of Common Couplingmentioning

confidence: 84%

Study of Power Quality at the Point of Common Coupling of a Low Voltage Grid and a Distributed Generation System of 7.8 kWp in a Tropical Region

et al. 2018

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“…Several research projects have been carried out in different parts of the world on the performance and characteristics of the grid connected photovoltaic systems, for example Elkholy, found that low solar irradiation has a significant impact on the energy quality of the Photovoltaic system output [4]. Dabou, presented a study on the effects of climatic conditions on the performance of the grid connected photovoltaic system.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis and Comparison of Different Photovoltaic Modules Technologies under Different Climatic Conditions in Casablanca

Karami¹,

Rafi²,

Haibaoui³

et al. 2017

J Fundam Renewable Energy Appl

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“…The efficient and proper operation of photovoltaic systems are dependent on the fluctuation of solar irradiance; temperature and choice of power semiconductor devices are some of the parameters that affect the power quality of the grid-connected PV systems. Good power quality translates into obtaining a sinusoidal voltage and current output from the photovoltaic system; in order to avoid harmonics and eventually voltage distortion [3].…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of a Small-Scale Grid-Connected Photovoltaic System:a Real Case Study in Egypt

Abobakr

Diab

Hassan

et al. 2021

Journal of Advanced Engineering Trends

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Renewable energy sources, especially PV systems, which become more significant sources of energy, are attracting considerable commercial interest. Nonetheless, the integration of the PV power plants to the utility grids may cause several operational problems for distribution networks. The severity of these problems directly depends on the percentage of PV penetration and the geography of the installation. Hence, knowing the possible impact of small gridconnected PV systems on distribution networks can provide feasible solutions before practical implementations in real-time. The electrical power generated from photovoltaic (PV) array depends mainly on the weather conditions. So, the PV solar grid-connected inverters should equip with the control system to meet a fast response of solar irradiance change. This study includes performance analysis for data and measurements which real-time from the PV gridconnected system site according to Egyptian PV-LV code-2014, simulation by using MATLAB/Simulink, and cost analysis for connecting small-scale 39.78 kW photovoltaic (SSPV) system to LV distribution networks. Power quality parameters are measured for the output of the installed PV system at the Holy Family School in Helwan, Egypt. The proposed system model is built on MATLAB/Simulink and simulated under daily weather conditions to test its operating performance. The power quality indices at the inverter output side have been measured using PA-9-plus power quality analyzer. The cost analysis of SSPV generator based on the weather conditions will lead to new investments. The system has been installed in October 2016, produces 68.966MWh/year annual energy yield, and reaches its initial cost in 6.2198 years. The produced electricity by the system is injected directly into the grid without storage devices (On-grid Plant).

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Experimental evaluation of 8kW grid-connected photovoltaic system in Egypt

Cited by 32 publications

References 2 publications

Study of Power Quality at the Point of Common Coupling of a Low Voltage Grid and a Distributed Generation System of 7.8 kWp in a Tropical Region

Study of Power Quality at the Point of Common Coupling of a Low Voltage Grid and a Distributed Generation System of 7.8 kWp in a Tropical Region

Performance Analysis and Comparison of Different Photovoltaic Modules Technologies under Different Climatic Conditions in Casablanca

Performance Analysis of a Small-Scale Grid-Connected Photovoltaic System:a Real Case Study in Egypt

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