Improvement of Grid-Connected Photovoltaic System Using Artificial Neural Network and Genetic Algorithm Under Different Condition

Renewable energy sources especially solar energy connected to an electrical grid system by using power electronic devices, known that devices degrade the power quality and especially generate harmonic currents. This article presents the study investigation and propagation of harmonics in the integration system of an electric grid connected to the photovoltaic system in the presence or not of a non-linear load (polluting load). In this study, the perturb and observe type MPPT controller for the boost converter and the PWM control for the three-phase inverter which provides the connection are used. We use a passive filtering technique (single and multiple filters) to mitigate the harmonic currents generated by the non-linear load. In the first case where the integration system is alone, the results obtained show that the values of the total harmonic distortion (THD) rates are within the standard used. But in the case of the presence of the non-linear load, the THD values are higher than the used norm. After using our proposed technique, the values of THD obtained are in the norm used for the application of a tuned filter at the fifth harmonic, and better results find with using of multiple filters (fifth and seventh).

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“…The photovoltaic system is modelled by using the model that contains a single diode [7,8]. The model DIAGNOSTYKA, Vol.…”

Section: The Photovoltaic Systemmentioning

confidence: 99%

Study and analysis of the propagation of harmonics in electrical grid connected photovoltaic system

Djeghader¹,

Boumous²,

Boumous³

2023

Diagnostyka

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“…Due to ever growing integration of PV systems and nonlinear loads into the grid, power quality issues are degrading and draw more consideration [1,2]. Various control techniques are developed for power production and power quality enhancement using a Solar Energy Conversion System (SECS).…”

Section: Introductionmentioning

confidence: 99%

Power Quality Improvement of a Solar Energy Conversion System by a Coordinated Active and LCL Filtering

Ouai

Mokrani

Machmoum

et al. 2021

Period. Polytech. Elec. Eng. Comp. Sci.

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Power converters play an essential role in Photovoltaic (PV) system to maximize the power transfer to the electrical grid. However, the generated harmonics in the grids due to these power converters and nonlinear loads are considered one of the encountered problems to overcome. This paper presents a decoupled control of PV field real power and reactive power injected to the high voltage network via a PWM inverter by using fuzzy logic controllers. Elsewhere, a procedure based on a coordinated active and LCL filtering is proposed to mitigate the harmonic current introduced by a nonlinear load and the inverter itself in such a way to enhance the power quality injected into the grid. The results obtained in the present study show the good performance of the suggested hybrid filtering approach and demonstrate that almost all harmonics orders of the grid current are well mitigated; the current Total Harmonic Distortion (THD) meets its standard and consequently the power quality is considerably enhanced.

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Protection of Three-Phase VSI Grid-Connected PV System During Transient Conditions Using Fuzzy Logic

Ismail

2015

J Control Autom Electr Syst

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Improvement of Grid-Connected Photovoltaic System Using Artificial Neural Network and Genetic Algorithm Under Different Condition

Abstract: Photovoltaic (PV)

Cited by 4 publications

References 17 publications

Study and analysis of the propagation of harmonics in electrical grid connected photovoltaic system

Study and analysis of the propagation of harmonics in electrical grid connected photovoltaic system

Power Quality Improvement of a Solar Energy Conversion System by a Coordinated Active and LCL Filtering

Protection of Three-Phase VSI Grid-Connected PV System During Transient Conditions Using Fuzzy Logic

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