Operation of Grid-Connected PV System With ANN-Based MPPT and an Optimized LCL Filter Using GRG Algorithm for Enhanced Power Quality

Ibrahim, Nagwa F.; Mahmoud, Mohamed Metwally; Thaiban, Ali M. H. Al; Barnawi, Abdulwasa B.; Elbarbary, Z. M. S.; Omar, Ahmed Ibrahim; Abdelfattah, Hany

doi:10.1109/access.2023.3317980

Cited by 23 publications

(8 citation statements)

References 54 publications

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“…The dc side voltage of the inverter is generally provided by a pre-stage boost converter with a constant output voltage V dc . Based on the dc voltage, the inverter converts dc power into ac and connects with the public grid via an LCL filter [26], as shown in Figure 2.…”

Section: P-q Controlmentioning

confidence: 99%

Control and Intelligent Optimization of a Photovoltaic (PV) Inverter System: A Review

Zhang,

Zhai,

Mao

et al. 2024

Energies

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PV power generation is developing fast in both centralized and distributed forms under the background of constructing a new power system with high penetration of renewable sources. However, the control performance and stability of the PV system is seriously affected by the interaction between PV internal control loops and the external power grid. The impact of the PV system on the reliability, stability, and power quality of power systems has restricted them to further participate in power supplies with a large capacity. Traditional control methods have become ineffective at dealing with these problems as the PV system becomes increasingly complex and nonlinear. Intelligent control as a more advanced technology has been integrated into the PV system to improve system control performance and stability. However, intelligent control for the PV system is still in the early stages due to the extensive calculation and intricate implementation of intelligent algorithms. Further investigations should be carried out to effectively combine intelligent control with the PV system to constitute an intelligent PV power system with multiple functions, high stability, and high-performance. This paper provides a systematic classification and detailed introduction of various intelligent optimization methods in a PV inverter system based on the traditional structure and typical control. The future trends and research topics are given to provide a reference for the intelligent optimization control in the PV system.

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Section: P-q Controlmentioning

confidence: 99%

Control and Intelligent Optimization of a Photovoltaic (PV) Inverter System: A Review

Zhang,

Zhai,

Mao

et al. 2024

Energies

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“…Flexible Alternating Current Transmission Systems (FACTS) devices, such as filters and power quality custom devices, are commonly employed to mitigate PQ problems in standalone µGs. These devices include series and shunt compensators, which are integrated into µGs to regulate and correct voltage problems [10,11]. However, managing compensators effectively can be challenging, as they rely on controller output signals.…”

Section: Introductionmentioning

confidence: 99%

Power Quality Conditioners-Based Fractional-Order PID Controllers Using Hybrid Jellyfish Search and Particle Swarm Algorithm for Power Quality Enhancement

Aldosary

2024

Fractal Fract

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Power quality (PQ) is a major issue in today’s electrical system that affects both utilities and customers. The proliferation of power electronics devices, smart grid technology, and renewable energy sources (RES) have all contributed to the emergence of PQ concerns in today’s power system. The Unified Power Quality Conditioner (UPQC) is a versatile tool that can be used to fix distribution grid issues caused by irregular voltage, current, or frequency. Several tuning parameters, however, restrict the effectiveness of the Fractional-Order Proportional Integral Derivative (FOPID) control technique, which is proposed to improve UPQC performance. To move beyond these restrictions and find the optimal solution for the FOPID controller problem, a hybrid optimization strategy called the Hybrid Jellyfish Search Optimizer and Particle Swarm Optimizer (HJSPSO) is employed. To meet the load requirement during PQ issue periods, the suggested model incorporates a renewable energy source into the grid system. Whether the load is linear or non-linear, the design maintains PQ problems to a minimum. Furthermore, the FOPID control technique is compared with other controllers. Results show that grid-connected RES systems using the proposed FOPID control approach for UPQC have fewer PQ problems. The presented UPQC with HJSPSO strategy significantly outperformed, with the shortest computing time of 127.474 s and an objective function value of 1.423.

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“…Prior studies have offered mathematical formulations for computing the LCL filter connected to the grid in single-phase systems [8][9][10][11]. Recently, optimization methods for three-phase LCL filters based on complex algorithms have been proposed [12][13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

“…Recently, optimization methods for three-phase LCL filters based on complex algorithms have been proposed [12][13][14][15][16][17][18][19]. Few optimization methods have been reported for single-phase systems [11,[20][21][22], and the proposed methods are based on the analyses performed in [8][9][10]. Methods based on cost minimization have also been reported for three-phase systems [23,24].…”

Section: Introductionmentioning

confidence: 99%

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A New LCL Filter Design Method for Single-Phase Photovoltaic Systems Connected to the Grid via Micro-Inverters

Adamas-Pérez,

Ponce-Silva,

Mina-Antonio

et al. 2024

Technologies

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This paper aims to propose a new sizing approach to reduce the footprint and optimize the performance of an LCL filter implemented in photovoltaic systems using grid-connected single-phase microinverters. In particular, the analysis is carried out on a single-phase full-bridge inverter, assuming the following two conditions: (1) a unit power factor at the connection point between the AC grid and the LCL filter; (2) a control circuit based on unipolar sinusoidal pulse width modulation (SPWM). In particular, the ripple and harmonics of the LCL filter input current and the current injected into the grid are analyzed. The results of the Simulink simulation and the experimental tests carried out confirm that it is possible to considerably reduce filter volume by optimizing each passive component compared with what is already available in the literature while guaranteeing excellent filtering performance. Specifically, the inductance values were reduced by almost 40% and the capacitor value by almost 100%. The main applications of this new design methodology are for use in single-phase microinverters connected to the grid and for research purposes in power electronics and optimization.

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Operation of Grid-Connected PV System With ANN-Based MPPT and an Optimized LCL Filter Using GRG Algorithm for Enhanced Power Quality

Cited by 23 publications

References 54 publications

Control and Intelligent Optimization of a Photovoltaic (PV) Inverter System: A Review

Control and Intelligent Optimization of a Photovoltaic (PV) Inverter System: A Review

Power Quality Conditioners-Based Fractional-Order PID Controllers Using Hybrid Jellyfish Search and Particle Swarm Algorithm for Power Quality Enhancement

A New LCL Filter Design Method for Single-Phase Photovoltaic Systems Connected to the Grid via Micro-Inverters

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