Performance and analysis of PV system at utility level with harmonics mitigation using passive LCL filter

Prabhakar, C.; Bhattar, C. L.

doi:10.1109/isco.2015.7282287

Cited by 2 publications

(2 citation statements)

References 12 publications

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“…Practically, a Selective Pass Band Filter (SPBF) or Low Pass Filter (LPF) can been used to extract the harmonic currents components [25]. Frequency domain compensation, which is based on Fourier analysis, is not very used because it requires more real time processing power [26]. In this case, the instantaneous power theory is used for being compensated, by the grid side converter as shown in Fig.…”

Section: Active Filtering Functionmentioning

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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Section: Active Filtering Functionmentioning

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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“…Passive filters were used conventionally to mitigate these problems (Prabhakar and Bhattar, 2015). But they have many drawbacks like inability to tackle variable reactive power demand (de Jesus et al , 2017) and introducing resonance problem in the network (Hu, 2015).…”

Section: Introductionmentioning

confidence: 99%

Control techniques for enhancing performance of PV system under dynamic conditions

Ehtesham

Jamil

2020

IJESM

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Purpose The purpose of this paper is to focus on two major areas of concern for the Photovoltaic (PV) system, i.e. power quality and maximum power point tracking (MPPT). Novel control strategies have been proposed for both these issues, and their respective superiorities over the existing techniques have been established. On the other hand, as far as MPPT is concerned, two limitations are found in the available techniques. One is the inability of effective MPPT in dynamic conditions where the environmental parameters changes very rapidly. Second one is the ineffective tracking of global maxima under partial shading conditions. Design/methodology/approach Here, modified Kalman filtering approach has been applied for estimating the reference current of active power filter, incorporated for power quality improvement. The proposed Kalman algorithm introduces a weighted matrix, which advances the estimated values of state variables. This paper presents a simple and enhanced model-based (MB) MPPT algorithm that has the capability of tracking MPPT effectively in both these working conditions. The proposed MB algorithm uses the mathematical modelling, and based on precised estimation of parameters, it pre-determines the MPP analytically. Findings It has been tested successfully for dynamic variations of insolation, temperature and partial shading, where all these three parameters are rigorously varied over the full scale of practical values. The results have been also investigated experimentally and compared with the simulated one. A close matching of both the results has been shown through the plots, which validates the effectiveness of proposed algorithms. Originality/value This research paper is part of the original research work carried out in Lab. Simulated results are obtained in MATLAB/Simulink platform, whereas these are further validated experimentally on 2-KW panel constituted with all types of commercial products, namely, mono, poly and thin-film.

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Performance and analysis of PV system at utility level with harmonics mitigation using passive LCL filter

Cited by 2 publications

References 12 publications

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

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

Control techniques for enhancing performance of PV system under dynamic conditions

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