An Enhanced P&amp;O MPPT Algorithm With Concise Search Area for Grid-Tied PV Systems

Ali, Ahmed; Mousa, Hossam H. H.; Mohamed, Hassanien Ramadan A.; Kamel, Salah; Hassan, Abdurrahman Shuaibu; Alaas, Zuhair; Mohamed, Essam E. M.; Youssef, Abdel‐Raheem

doi:10.1109/access.2023.3298106

Cited by 26 publications

(6 citation statements)

References 39 publications

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“…In Figure 2, the duty ratio (D) sent to the DC-DC boost converter is analogous to the position of the thief in the AFT algorithm. The duty ratio is updated iteratively in each iteration using Equations ( 7), (9), and (10). The AFT algorithm implemented in the microcontroller dynamically adjusts the duty ratio in each iteration, mirroring its approach to optimizing the performance of each thief.…”

Section: Mppt Using Aft Algorithmmentioning

confidence: 99%

“…Several traditional single-stage algorithms have been developed, including hill climbing (HC) [7], incremental conductance (InC) [8], and perturb and observe (P&O) [9]. Although these algorithms successfully determine the maximum power point (MPP) of a photovoltaic (PV) array under uniform irradiance conditions, they fail to converge to the global maximum power point (GMPP) when the PV array is partially shaded (PSC).…”

Section: Introductionmentioning

confidence: 99%

“…These algorithms mimic behaviors such as hunting, reproduction, food foraging, and breeding found in plants and animals. There have been many different metaheuristic algorithms proposed in the literature [9,14,[17][18][19][20][21][22]. One of the key benefits of metaheuristic algorithms is their exploratory nature, which enables them to cover the whole search space and locate the best answer while avoiding local peaks.…”

Section: Introductionmentioning

confidence: 99%

“…In Figure 2, the duty ratio (D) sent to the DC-DC boost converter is analogous to the position of the thief in AFT. The duty ratio is updated iteratively in each iteration using Equations ( 7), (9), and (10). After that, from the updated duty ratio, the best duty ratio Processes 2023, 11, 2946 9 of 26 (D Pbest ) and the global best duty ratio (D Gbest ) are evaluated.…”

mentioning

confidence: 99%

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Fast Tracking of Maximum Power in a Shaded Photovoltaic System Using Ali Baba and the Forty Thieves (AFT) Algorithm

Rehman,

Sajid,

et al. 2023

Processes

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Photovoltaic (PV) generation systems that are partially shaded have a non-linear operating curve that is highly dependent on temperature and irradiance conditions. Shading from surrounding objects like clouds, trees, and buildings creates partial shading conditions (PSC) that can cause hot spot formation on PV panels. To prevent this, bypass diodes are installed in parallel across each panel, resulting in a global maximum power point (GMPP) and multiple local maximum power points (LMPPs) on the power-voltage (P-V) curve. Traditional methods for maximum power point tracking (MPPT), such as perturb and observe (P&O) and incremental conductance (INC), converge for LMPPs on the P-V curve, but metaheuristic algorithms can track the GMPP effectively. This paper proposes a new, efficient, and robust GMPP tracking technique based on a nature-inspired algorithm called Ali Baba and the Forty Thieves (AFT). Utilizing the AFT algorithm for MPPT in PV systems has several novel features and advantages, including its adaptability, exploration-exploitation balance, simplicity, efficiency, and innovative approach. These characteristics make AFT a promising choice for enhancing the efficiency of PV systems under varied circumstances. The performance of the proposed method in tracking the GMPP is evaluated using a simulation model under MATLAB/Simulink environment, the achieved simulation results are compared to particle swarm optimization (PSO). The proposed method is also tested in real-time using the Hardware-in-the-loop (HIL) emulator to validate the achieved simulation results. The findings indicate that the proposed AFT-based GMPP tracking method performs better under complex partial irradiance conditions than PSO.

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Section: Mppt Using Aft Algorithmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Fast Tracking of Maximum Power in a Shaded Photovoltaic System Using Ali Baba and the Forty Thieves (AFT) Algorithm

Rehman,

Sajid,

et al. 2023

Processes

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“…Many tracking approaches have been, recently, introduced to attain the optimal power of the PV system, which has drawn considerable interest from researchers 16 , 17 . Two MPPT categories are broadly classified; conventional and soft computing MPPT algorithms as depicted in Fig.…”

Section: Introductionmentioning

confidence: 99%

Investigation of single and multiple MPPT structures of solar PV-system under partial shading conditions considering direct duty-cycle controller

Youssef,

Hefny,

Ali

2023

Sci Rep

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Partial shading of solar panels diminishes their operating efficiency and energy synthesized as it disrupts the uniform absorption of sunlight. To tackle the issue of partial shading in photovoltaic (PV) systems, this article puts forward a comprehensive control strategy that takes into account a range of contributing factors. The proposed control approach is based on using multi-string PV system configuration in place of a central-type PV inverter for all PV modules with a single DC-DC converter. This adaptation enhances overall efficiency across varying radiation levels. Also, the proposed technique minimizes the overall system cost by reducing the required sensors number by utilizing a radiation estimation strategy. The converter switching strategy is synthesized considering direct duty-cycle control method to establish the maximum power point (MPP) location on the P–V curve. The direct duty-cycle tracking approach simplifies the control system and improves the system’s response during sudden partial shading restrictions. To validate the effectiveness of the suggested MPPT method, two system configurations were constructed using MATLAB/SIMULINK software and assessed under various partial shading scenarios. Additionally, a multi-string system was subjected to real irradiance conditions. The sensor-less MPPT algorithm proposed achieved an impressive system efficiency of 99.81% with a peak-to-peak ripple voltage of 1.3V. This solution offers clear advantages over alternative approaches by reducing tracking time and enhancing system efficiency. The system findings undoubtedly support the theoretical scrutiny of the intended technique.

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A Bidirectional DC-DC Converter and Fast-GMPPT Algorithm for Photovoltaic Cells

Xu,

Ji,

et al. 2024

Lecture Notes in Electrical Engineering

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An Enhanced P&O MPPT Algorithm With Concise Search Area for Grid-Tied PV Systems

Cited by 26 publications

References 39 publications

Fast Tracking of Maximum Power in a Shaded Photovoltaic System Using Ali Baba and the Forty Thieves (AFT) Algorithm

Fast Tracking of Maximum Power in a Shaded Photovoltaic System Using Ali Baba and the Forty Thieves (AFT) Algorithm

Investigation of single and multiple MPPT structures of solar PV-system under partial shading conditions considering direct duty-cycle controller

A Bidirectional DC-DC Converter and Fast-GMPPT Algorithm for Photovoltaic Cells

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