Results 31 to 40 of about 3,443 (205)

A new MPPT control for photovoltaic panels by instantaneous maximum power point tracking

Electrical Engineering in Japan, 2004
AbstractThis paper presents a new maximum power point tracking control for photovoltaic (PV) panels. The control can be categorized into the Perturb and Observe (P&O) method. It utilizes instantaneous voltage ripples at PV panel output terminals caused by the switching of a chopper connected to the panel in order to identify the direction for the ...
Daiki Tokushima, Masato Uchida, Satoshi Kanbei, Hiroki Ishikawa, Haruo Naitoh   +4 more
openaire   +2 more sources

Photovoltaic System with Smart Tracking of the Optimal Working Point

Advances in Electrical and Computer Engineering, 2010
A photovoltaic (PV) system, based on a Maximum Power Point Tracking (MPPT) controller that extracts the maximum possible output power from the solar panel is described.
PATARAU, T., RUSU, A., MOGA, D., PETREUS, D., MUNTEANU, M.   +4 more
doaj   +1 more source

An improved genetic algorithm based fractional open circuit voltage MPPT for solar PV systems

Energy Reports, 2023
To extract the maximum power from solar PV, maximum power point tracking (MPPT) controllers are needed to operate the PV arrays at their maximum power point under varying environmental conditions.
Aakash Hassan, Octavian Bass, Mohammad A.S. Masoum   +2 more
doaj   +1 more source

Self‐Assembled Monolayers in p–i–n Perovskite Solar Cells: Molecular Design, Interfacial Engineering, and Machine Learning–Accelerated Material Discovery

Advanced Materials, EarlyView.
This review highlights the role of self‐assembled monolayers (SAMs) in perovskite solar cells, covering molecular engineering, multifunctional interface regulation, machine learning (ML) accelerated discovery, advanced device architectures, and pathways toward scalable fabrication and commercialization for high‐efficiency and stable single‐junction and
Asmat Ullah, Ying Luo, Stefaan De Wolf
wiley   +1 more source

Engineering the Assembly Freedom of Donor–Acceptor Type Self‐Assembled Monolayers Toward Efficient and Stable Flexible Perovskite Photovoltaics

Advanced Materials, EarlyView.
Assembly freedom engineering breaks the vertical alignment constraint of donor–acceptor self‐assembled monolayers, tuning their assembly freedom to achieve quasi‐random molecular orientation. This strategy simultaneously boosts interfacial charge transport and mechanical robustness, enabling high‐efficiency and mechanically stable flexible perovskite ...
Biao Zhou, Guosen Zhang, Hao Wang, Juntao Zhao, Ruijia Zhang, Hong Zhang, Mingwei An, Yue Wang, Yang Wang, Wallace C. H. Choy   +9 more
wiley   +1 more source

External Current Source–Based Unilluminated PV Partial Shading Emulation System Verified Through the Hybrid Global Search Adaptive Perturb and Observe MPPT Algorithm

Frontiers in Energy Research, 2022
In this study, a novel PV emulator and the state-of-art learning–based real-time hybrid global search adaptive perturb and observe (P&O) maximum power point tracking (MPPT) algorithm have been presented.
Yidong Wang, Cagfer Yanarates, Zhongfu Zhou   +2 more
doaj   +1 more source

Maximum Power Point Tracking (MPPT) for a PV Powered Z-Source Inverter

Indian Journal of Science and Technology, 2016
Objectives: A constant voltage maximum power point tracking algorithm based PV powered z-source inverter was examined for varying irradiation and temperature to maximize power output. Method: Maximum power point tracking algorithm applied to photo voltaic system keep the boost converter output constant.
S. Kamalakkannan, D. Kirubakaran
openaire   +1 more source

Sulfonated Bathocuproine Derivatives as Chemically Bonded Buried‐Interface Engineers for n–i–p Perovskite Solar Cells

Advanced Science, EarlyView.
A BCP‐derived buried‐interface strategy establishes Na‐BCS as a chemically bonded molecular bridge. By combining sulfonate anchoring to SnO2 with preserved BCP–Pb2+ coordination, Na‐BCS simultaneously passivates oxide‐ and perovskite‐side defects, suppresses non‐radiative recombination, and delivers a surface recombination velocity of 8.6 cm s−1, a ...
Dong Hyun Kim, Min Ju Jeong, SeungMin Lee, Oui Jin Oh, Mun Young Woo, Sung Yong Kim, Dong Hun Kang, Chan Young Kim, Chan Ho Shin, Jun Hong Noh   +9 more
wiley   +1 more source

Suppressing Morphological and Energetic Disorder in Copper Antimony Sulfide‐based Hole‐Transporting Materials via Ligand–Precursor Engineering for Efficient and Stable Perovskite Solar Cells

Advanced Science, EarlyView.
Sulfur‐precursor and ligand engineering regulate the nucleation, morphology, and energetic disorder of CuSbS2 nanocrystals for dopant‐free inorganic hole‐transport layers in perovskite solar cells. Thiourea‐assisted synthesis combined with optimized OAm/OAc coordination suppresses excessive anisotropic growth, enabling mixed plate‐like/quasi‐spherical ...
Ibrahimhan Dilci, Savas Sonmezoglu
wiley   +1 more source

Dry‑Contact Trimming for All‑Perovskite Tandem Solar Cells via Solid‑Solution Homogenization

Advanced Energy Materials, EarlyView.
Narrow‐bandgap Sn–Pb perovskites are promising bottom absorbers for all‐perovskite tandems but suffer from Sn‐rich surfaces and depth‐dependent lattice/compositional inhomogeneity. Layered‐perovskite‐assisted dry‐contact trimming removes Sn‐rich surface species and reconfigures the Sn–Pb absorber, enabling efficient charge collection, reduced voltage ...
Woocheol Han, Hyojin Hong, Chan Young Kim, Chan Ho Shin, Sung Yong Kim, So Eun Shin, Minhyeok Park, Giseon Yu, Sohyun Kang, Seungmin Lee, Jun Hong Noh   +10 more
wiley   +1 more source