Results 31 to 40 of about 307 (159)

Detecting Partial Shadowing and Mismatching Phenomena in Photovoltaic Arrays by Machine Learning Techniques

open access: yesIEEE Open Journal of the Industrial Electronics Society, 2022
A photovoltaic array including several modules in series may show mismatching due to discrepancies among the module conditions, mainly due to partial shadowing.
Michel Piliougine   +2 more
doaj   +1 more source

Control strategy of grid-connected inverter droop based on GMPPT method

open access: yesIOP Conference Series: Earth and Environmental Science, 2020
Abstract The conductance increment method (INC) can be quickly and accurately stabilized at the maximum power point (MPP) but easily falls into the local extreme point (LMPP) in the shadow environment. Considering the particle swarm optimization (PSO) can quickly achieve global optimal search but the number of iterations is too large ...
Xuyang Zhang   +11 more
openaire   +1 more source

Global maximum power point tracking for solar power systems using the hybrid artificial fish swarm algorithm

open access: yesGlobal Energy Interconnection, 2019
Maximum power point tracking (MPPT) techniques are used to maintain photovoltaic modules operating points at the local maximum power points under non-uniform irradiance conditions (NUIC).
Jianpo Li, Pengwei Dong
doaj   +1 more source

Algoritmos GMPPT (Global Maximum Power Point Tracking) para aplicação em sistemas de produção de energia fotovoltaica. [PDF]

open access: yes, 2021
Os algoritmos de rastreamento do máximo ponto de potência global (GMPPT), são especialmente indicados para uso em sistemas de produção de energia fotovoltaica, quando os painéis fotovoltaicos ficam sujeitos a um efeito de sombreamento parcial numa ...
Oliveira, Pedro A. Duarte de
core  

Closed-loop string current control for string optimizer circuits-based PV system to enhance extracted PV power during partial shading conditions

open access: yesAlexandria Engineering Journal, 2022
Central and string inverters are the most common technologies in PV integrated systems. The central inverter technology is simple and cheap, but its generated power is greatly reduced during Partial Shading Condition (PSC). In string inverter technology,
Marwa Abdelkareem Yagoub   +2 more
doaj   +1 more source

On the effects of hyper-parameters adjustments to the PSO-GMPPT algorithm for a photovoltaic system under partial shading conditions [PDF]

open access: yesEAI Endorsed Transactions on Energy Web, 2020
This paper exploits the performance of the particle swarm optimization (PSO) algorithm for a photovoltaicsystem under partial shading condition (PSC).
André Leopoldino   +2 more
doaj   +1 more source

A Novel Global Maximum Power Point Tracking Method Based on Measurement Cells

open access: yesIEEE Access, 2022
Solar power generation has become a solution to mitigate the severe effects on the everyday higher prices of fossil fuels. Additionally, renewable energies operation -as solar- results in a non-polluting way to supply energy, being of special interest ...
Rodrigo H. Morales   +7 more
doaj   +1 more source

A Fast-Tracking Hybrid MPPT Based on Surface-Based Polynomial Fitting and P&O Methods for Solar PV under Partial Shaded Conditions

open access: yesMathematics, 2021
The efficiency of photovoltaic (PV) systems depends directly on solar irradiation, so drastic variations in solar exposure will undoubtedly move its maximum power point (MPP). Furthermore, the presence of partial shading conditions (PSCs) generates local
Catalina González-Castaño   +4 more
doaj   +1 more source

Analysis of Dynamic Characteristic for Solar Arrays in Series and Global Maximum Power Point Tracking Based on Optimal Initial Value Incremental Conductance Strategy under Partially Shaded Conditions

open access: yesEnergies, 2017
Partial shading (PS) is an unavoidable condition which significantly reduces the efficiency and stability of a photovoltaic (PV) system. With PS, the system usually exhibits multiple-peak output power characteristics, but single-peak is also possible ...
Jian Zhao   +3 more
doaj   +1 more source

MPPT and GMPPT Implementation for Buck-Boost Mode Control of Quasi-Z-Source Inverter

open access: yesIEEE Transactions on Industrial Electronics, 2022
The focus is on the maximum power point tracking implementation for the buck-boost voltage mode control of a single-phase multilevel inverter based on a three-level neutral point clamped quasi-Z-source topology. To utilize shoot-through states only when boost function is needed and avoid it in the buck mode, two different control approaches are ...
Oleksandr Husev   +4 more
openaire   +2 more sources

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