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    Wyświetlanie 1-4 z 4
    Tytuł:
    Comparative Analysis of Two Direct MPPT Methods Used for Tracking Maximum Power Points in a Photovoltaic System
    Autorzy:
    Olusegun, Akinbulire Tolulope
    Adebukola, Ajala Zainab
    Denwigwe, Iheanacho Henry
    Oluseyi, Peter Olabisi
    Olubayo, Babatunde Moses
    Powiązania:
    https://bibliotekanauki.pl/articles/1066211.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    incremental conductance
    maximum operating power
    maximum power point trackers
    perturb & observe
    photovoltaic system
    Opis:
    Every solar panel has a maximum operating power. However, when solar panels are directly connected to a battery, the panels are usually forced to operate at the battery voltage. This is almost always below the maximum power point of the panels, thereby causing panel under-utilization. To overcome this problem, maximum power point trackers (MPPT) have been developed. In this thesis, a technical comparative analysis is done between two commonly implemented MPPT (Perturb & Observe and Incremental Conductance) algorithms to ensure efficient maximum power point tracking. This is done by modelling a maximum power point tracker (MPPT) and integrating it into a PV system in the MATLAB/SIMULINK environment. These two direct MPPT algorithms are then implemented under changing solar irradiation and load conditions. From the simulations, when starting from 0 second, the P&O algorithm reaches the Pmpp of 1969 W at 26ms, while INC reaches the Pmpp of 1965 W at 49ms. In addition, when there is a change in the AC loads connected to the PV system, it took exactly 35ms for both algorithms to reach the Pmpp of 2488 W. However, when both algorithms reached their Pmpp values, INC shows more stability than the P&O. The P&O shows ripples even at steady irradiance states, although the ripples are more evident when the irradiance is changing. From the results displayed, it can, therefore, be concluded that the P&O algorithm will be more suited to applications where attaining the Pmpp within a relatively short time is a necessity, while INC should be applied where performance is of great importance.
    Źródło:
    World Scientific News; 2019, 131; 123-146
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of maximum power point tracking methods for photovoltaic systems
    Autorzy:
    Talha, A.
    Boumaaraf, H.
    Bouhali, O.
    Powiązania:
    https://bibliotekanauki.pl/articles/229456.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    maximum power point tracking (PPT)
    PV
    P&O
    incremental conductance
    fuzzy logic
    converter
    Opis:
    The output characteristics of photovoltaic (PV) arrays are nonlinear and change with the solar irradiance and the cell's temperature. Therefore, a maximum power point tracking (MPPT) technique is needed to draw peak power from the solar array to maximize the produced energy. Among the hill climbing methods, the perturb and observe (P&O) method tracks the maximum power point (MPP) by repeatedly increasing or decreasing the output voltage at the MPP of the PV module. The implementation of the method is relatively simple, but it cannot track the MPP when the irradiance varies quickly with time. In addition, itmay cause system oscillation around the peak power points due to the effect of measurement noise. The incremental conductance (IncCond) method is also often used in PV systems. This method tracks the MPPs by comparing the incremental and instantaneous conductances of the solar array. This method requires longer conversion time, and a large amount of power loss results. In addition, extra hardware circuitry is required to implement the system. In this paper, it is shown that the negative effects associated with such a drawback can be greatly reduced if the intelligent method is used to improve P&O and IncCond algorithms. The perturbation step is continuously approximated by using fuzzy logic controller (FLC). By the digital simulation, the validity of the proposed control algorithm is proved.
    Źródło:
    Archives of Control Sciences; 2011, 21, 2; 151-165
    1230-2384
    Pojawia się w:
    Archives of Control Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Maximum power point tracking techniques for low-cost solar photovoltaic applications – Part II: Mathematical Calculation and Measurement and Comparison, criteria on choices and suitable MPPT techniques
    Autorzy:
    Sutikno, Tole
    Subrata, Arsyad Cahya
    Pau, Giovanni
    Jusoh, Awang
    Ishaque, Kashif
    Powiązania:
    https://bibliotekanauki.pl/articles/24202731.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    Incremental Conductance
    maximum power point tracking
    Measurement and Comparison
    Perturb and Observe
    solar photovoltaic
    trial-and-error
    Opis:
    In the last decade, there has been a substantial surge in the advancement of research into the maximum power point tracking (MPPT) controller. The MPPT approaches, on the other hand, continue to be in high demand due to the ease and simplicity with which tracking techniques can be implemented on the maximum power point (MPP). Diverse MPPT approaches and their modifications from various literature are categorized and thoroughly explored in this work, which is divided into two sections. The discussions are centered on the primary goal of attaining the most extraordinary feasible MPPT technique that produces the best results at the lowest possible expense. In order to determine which MPPT approaches to use, evaluations from earlier literature are used to guide the decision. In this section, we will examine the evaluation of the MPPT technique in two sections. Previously, in Part I, we explored the MPPT techniques based on constant parameters and trial-and- error. Part II of this article will examine the MPPT technique, which is based on mathematical computation, measurement, and comparison, and the algorithm development that has occurred in recent years. Furthermore, this section’s assessment for selecting MPPT approaches is based on previous literature reviews. To aid with this selection, the following criteria for the MPPT approach are proposed: sensors and analog/digital requirements, costeffectiveness, simplicity, stability, efficiency, and tracking speed. This enables the reader to select the MPPT technique that is most appropriate for their application.
    Źródło:
    Archives of Electrical Engineering; 2023, 72, 2; 299--322
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Maximum power point tracking techniques for low-cost solar photovoltaic applications – Part I: constant parameters and trial-and-error
    Autorzy:
    Sutikno, Tole
    Cahya Subrata, Arsyad
    Pau, Giovanni
    Jusoh, Awang
    Ishaque, Kashif
    Powiązania:
    https://bibliotekanauki.pl/articles/2202545.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    incremental conductance
    maximum power point tracking
    measurement and comparison
    perturb and observe
    solar photovoltaic (PV)
    trial-and-error
    Opis:
    The development of research on the maximum power point tracking (MPPT) controller has increased significantly in this decade. The MPPT technique, however, is still demanding because of the ease and simplicity of implementing tracking technique on the maximum power point (MPP). In this paper, MPPT techniques and their modifications from various literature are classified and examined in detail. The discussions are focused on the main objective of obtaining the best possible MPPT technique with the best results at a low cost. The assessment for the selection of MPPT techniques is based on assessments from the previous literature. The discussion of the MPPT technique assessment is divided into two parts. In Part I, the MPPT technique based on constant parameters, and trial-and-error will be discussed in detail, along with its algorithm development in recent times.
    Źródło:
    Archives of Electrical Engineering; 2023, 72, 1; 125--145
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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