Results 111 to 120 of about 16,121,767 (263)

Modeling of multi-junction solar cells for maximum power point tracking to improve the conversion efficiency

, 2017
This paper presents the basic principles of solar cells/ panels and explores its different models, such as single and double diode models. The main purpose of this research is to confirm that the principle of multi-junction solar cell (MJSC) operation to
Wang, Zhe, Ahfock, Tony, Andreas Helwig, Tony Ahfock, Helwig, Andreas, Zhe Wang, Narottam Das, Das, Narottam   +7 more
core   +1 more source

Local solutions of the optimal power flow problem [PDF]

, 2013
The existence of locally optimal solutions to the AC optimal power flow problem (OPF) has been a question of interest for decades. This paper presents examples of local optima on a variety of test networks including modified versions of common networks ...
Waqquas A. Bukhsh, Grothey, Andreas, Paul A. Trodden, Bukhsh, Waqquas A., Trodden, Paul, Trodden, P., McKinnon, Kenneth, Trodden, Paul A., Bukhsh, Waqquas, Bukhsh, W., Grothey, A., McKinnon, K., Andreas Grothey, Ken I. M. McKinnon, McKinnon, Ken I.M.   +14 more
core   +1 more source

A Hybrid P&O and PV Characteristics Simulation Method for GMPPT in PV Systems Under Partial Shading Conditions

Sensors
Under uniform operating conditions, the power–voltage (P-V) and current–voltage (I-V) curves of a photovoltaic (PV) system have only one maximum point, which facilitates the operation of maximum power point tracking (MPPT) algorithms. In practice, the PV
Van Hien Bui, Van Du Ha, Viet Anh Truong, Thanh Long Duong   +3 more
doaj   +1 more source

NFDI MatWerk Ontology (MWO): A BFO‐Compliant Ontology for Research Data Management in Materials Science and Engineering

Advanced Engineering Materials, EarlyView.
This article presents the NFDI‐MatWerk Ontology (MWO), a Basic Formal Ontology‐based framework for interoperable research data management in materials science and engineering (MSE). Covering consortium structures, research data management resources, services, and instruments, MWO enables semantic integration, Findable, Accessible, Interoperable, and ...
Hossein Beygi Nasrabadi, Ebrahim Norouzi, Kostiantyn Hubaiev, Jörg Waitelonis, Harald Sack   +4 more
wiley   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

A maximum power point tracker for photovoltaic energy systems based on fuzzy neural networks

, 2009
To extract the maximum power from a photovoltaic (PV) energy system, the real-time maximum power point (MPP) of the PV array must be tracked closely. The non-linear and time-variant characteristics of the PV array and the non-linear and non-minimum phase
Mingruo HU, Xinjian ZHU, Hu, Wan-qi, Guangyi CAO, Li, Chun-hua, Sui, Sheng, Wanqi HU, Zhu, Xin-jian, Chunhua LI, Cao, Guang-yi, Li, CH, Hu, Ming-ruo, Sheng SUI   +12 more
core   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Design Guidelines for Multiloop Perturbative Maximum Power Point Tracking Algorithms

, 2017
Due to relatively good performance and simple implementation, fixed-step direct maximum power point tracking techniques such as perturb & observe and incremental conductance are the most popular algorithms aimed to maximize the energy yield of ...
Teuvo Suntio, Suntio, Teuvo, Moshe Sitbon, Jyri Kivimaki, Sergei Kolesnik, Sitbon, Moshe, Kolesnik, Sergei, Kivimäki, Jyri, Kuperman, Alon, Alon Kuperman   +9 more
core   +1 more source

Field Report from Collaborative Research Center 1625: Heterogeneous Research Data Management Using Ontology Representations

Advanced Engineering Materials, EarlyView.
A unified research data management framework for heterogeneous materials data is presented. The system integrates multimodal datasets using ontologies and knowledge graphs, enabling interoperability and FAIR (findable, accessible, interoperable, reusable) data principles. By linking data across scales and workflows, it supports reproducible, Artifitial
Doaa Mohamed, Samuel García Vázquez, Behnam Mardani, Victor Dudarev, Alfred Ludwig, Maribel Acosta, Markus Stricker   +6 more
wiley   +1 more source

An Improved, Novel Musical Chairs Algorithm with Local Adaptive Exploration for MPPT of PV Systems

Applied Sciences
Shadows falling on photovoltaic (PV) modules result in partial shading conditions (PSCs). These conditions affect the power generation of a PV system because of their varying nature.
Meshack Magaji Ishaya, Moein Jazayeri
doaj   +1 more source