Results 31 to 40 of about 17,106 (263)
Model Reduction of DFIG Wind Turbine System Based on Inner Coupling Analysis
Energies, 2018 The doubly-fed induction generator (DFIG) wind turbine system, which is composed of the wind turbine, generator, rotor-side converter, grid-side converter, and so on, is a typical multi-time scale system. The dynamic processes at different time scales do
Pingping Han +4 more
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Chiral Phase Change Nanomaterials
Advanced Functional Materials, EarlyView.This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow +11 more
wiley +1 more source
Advanced Functional Materials, EarlyView.The internal quality factor of tantalum superconducting resonators is significantly increased by ∼140% in the low photon regime by passivating their surfaces with a high‐quality alkene self‐assembled monolayer. Our methodology promises to enhance the performance of superconducting quantum circuits.
Harsh Gupta +6 more
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Meitan xuebaoAiming at the difficulty in detecting concealed geological isomers using conventional geophysical method in ultra-wide coal working face, the electromagnetic response mechanism of mine transient electromagnetic (TEM) perspective detection with opposite ...
Maofei LI +6 more
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Novel Approach for Electromagnetic Actuators Analysis in Transient Behavior
Advances in Electrical and Computer Engineering, 2012 A new model of the actuator is proposed in this paper. It considers the nonlinear electromagnetic phenomena in the ferromagnetic core, as well as the influence of the mechanical load during the plunger movement.
SIRBU, I. G. +3 more
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Charge Generation and Recombination Pathways in All‐Polymer Bulk Heterojunction Solar Cells
Advanced Functional Materials, EarlyView.Multimodal spectroscopy and device analysis reveal how field‐dependent charge generation, transport limitations, and non‐geminate recombination govern performance losses in all polymer solar cells. The results identify the key processes controlling charge extraction and recombination, providing insights for the design of more efficient all‐polymer ...
Shahidul Alam +17 more
wiley +1 more source
IET Renewable Power GenerationAs the ‘dual carbon’ goals continue to advance in China, the grid‐connected scale of new energy power generation equipment such as wind power and photovoltaic power is constantly increasing.
Shiyun Xu +4 more
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Non-uniform Transmission Line Model of Offshore Wind Turbine Tower
Zhongguo dianli, 2020 The modeling of wind turbine tower is an important part of the research on lightning protection of offshore wind turbines. The establishment of its model has an important impact on the analysis results.
Yuanjian SONG +3 more
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Mathematic model of the converter with fourteenzone voltage regulation
Adaptivni Sistemi Avtomatičnogo Upravlinnâ, 2022 The article focuses on electromagnetic processes in the electric circuits with semiconductor switches. The mathematical model of the converter with fourteenzone regulation of output voltage has been developed to analyse electromagnetic processes in ...
В. Михайленко +4 more
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A New Adaptive Mother Wavelet for Electromagnetic Transient Analysis [PDF]
Journal of Electrical Engineering, 2016 Abstract Wavelet Transform (WT) is a powerful technique of signal processing, its applications in power systems have been increasing to evaluate power system conditions, such as faults, switching transients, power quality issues, among others.
Daniel Guillén +2 more
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