Results 31 to 40 of about 220,700 (262)

Development of a Global Maximum Power Point Tracker for Photovoltaic Module Arrays Based on the Idols Algorithm

Mathematics
The main objective of this paper is to develop a maximum power point tracker (MPPT) for a photovoltaic module array (PVMA) under conditions of partial shading and sudden changes in solar irradiance. PVMAs exhibit nonlinear characteristics with respect to
Kuei-Hsiang Chao, Yi-Chan Kuo
doaj   +1 more source

A Hybrid Maximum Power Point Search Method Using Temperature Measurements in Partial Shading Conditions

Metrology and Measurement Systems, 2014
Photovoltaic panels have a non-linear current-voltage characteristics to produce the maximum power at only one point called the maximum power point. In the case of the uniform illumination a single solar panel shows only one maximum power, which is also ...
Mroczka Janusz, Ostrowski Mariusz
doaj   +1 more source

Module Level Global Maximum Power Point Tracking Strategy

2019 4th International Conference on Power Electronics and their Applications (ICPEA), 2019
Partial shading of photovoltaic (PV) modules can occur at any time due to the obstacles such as chimney, tree, antenna, bird flock etc. Due to such obstacles, the entire surface of the PV module cannot receive an equal amount of irradiance; Therefore, PV modules cannot operate at its maximum power point (MPP).
openaire   +2 more sources

Multi-verse Optimization-based MPPT Design for PV-TEG System

Zhongguo dianli, 2023
A centralized hybrid photovoltaic thermoelectric generator (PV-TEG) system shows multiple local maximum power points (LMPPs) under a partial shading condition (PSC).
Dahu LI, Hongyu ZHOU, Yue ZHOU, Yuze RAO, Wei YAO   +4 more
doaj   +1 more source

A Novel Hermite Interpolation-Based MPPT Technique for Photovoltaic Systems Under Partial Shading Conditions

IEEE Photonics Journal
Solar energy is a sustainable and highly promising renewable energy source. The commonly employed Perturbation and Observation (P&O) and Incremental Conductance (INC) methods exhibit advantages such as ease of implementation.
Chuanlai Yuan, Juntao Xia, Fengyuan Huang, Peng Zhao, Lingshuang Kong   +4 more
doaj   +1 more source

Global maximum power point tracking in partially shaded PV systems using plant reproduction algorithm

IET Renewable Power Generation, 2021
The power–voltage curve of photovoltaic (PV) power generation system under partial shading conditions (PSC) is non‐monotonic with multiple power peaks and traditional methods do not guarantee global convergence which leads to energy loss.
Satheesh Krishnan G., Gireesh V. Puthusserry, Mithun T., Sishaj P. Simon, Bijilesh P. Thazhakuni   +4 more
doaj   +1 more source

A critical review and performance comparisons of swarm-based optimization algorithms in maximum power point tracking of photovoltaic systems under partial shading conditions

Energy Reports, 2022
This article presents a comparative analysis of the latest swarm-based optimization approaches under partial shading conditions (PSCs) for maximum power point tracking (MPPT) in photovoltaic (PV) systems.
Muhammad Shahid Wasim, Muhammad Amjad, Salman Habib, Muhammad Abbas Abbasi, Abdul Rauf Bhatti, S.M. Muyeen   +5 more
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Experimental validation of novel hybrid Grey Wolf Equilibrium Optimization for MPPT to improve the efficiency of solar photovoltaic system

Results in Engineering
This paper introduces a novel strategy for tracking the Maximum Power Point (MPP) using Grey Wolf Equilibrium Optimizer (GWEO) algorithm, which integrates a search mechanism of Grey Wolf Optimizer (GWO) and Equilibrium Optimizer (EO).
Feriel Abdelmalek, Hamza Afghoul, Fateh Krim, Mohit Bajaj, Vojtech Blazek   +4 more
doaj   +1 more source