Results 21 to 30 of about 191,656 (310)

Increasing the conversion efficiency of KTP crystal using the pump-power technique

Iraqi Journal of Physics, 2020
In this study, the effect of pumping power on the conversion efficiency of nonlinear crystal (KTP) was investigated using laser pump-power technique. The results showed that the higher the pumping power values, the greater the conversion efficiency (η ...
Raied K. Jamal, Russul Khalil Rustum
doaj   +1 more source

The Influence Factor Analysis of Symmetrical Half-Bridge Power Converter through Regression, Rough Set and GM(1,N) Model

Axioms, 2022
Analysis of power converter performance has tended to be engineering-oriented, focusing mainly on voltage stability, output power and efficiency improvement. However, there has been little discussion about the weight relations between these factors.
Shih-Kuen Changchien, Kun-Li Wen
doaj   +1 more source

Reliable, Efficient and Cost-Effective Electric Power Converter for Small Wind Turbines Based on AC-link Technology [PDF]

, 2006
Grid-tied inverter power electronics have been an Achilles heel of the small wind industry, providing opportunity for new technologies to provide lower costs, greater efficiency, and improved reliability.
Hammell, Darren, Bennett, Keith, Holveck, Mark   +2 more
core   +1 more source

Identification method of all-operating-point admittance model for wind farms considering frequency-coupling characteristics

International Journal of Electrical Power & Energy Systems
Admittance identification is an effective tool to solve the issue of black-box admittance modeling in wind farms. However, due to the large operating range of wind farms, it is difficult to accurately identify the admittance model of wind farms under all
Zilin Zhang, Wenhua Wu, Zhiwei Xie, Yandong Chen, Yuancan Xu, Shixiang Cao, Zhihao Dai   +6 more
doaj   +1 more source

Power conversion efficiency of non-equilibrium light absorption

AIP Advances, 2017
We deduce a novel expression for the non-equilibrium photochemical potential and the power conversion efficiency of non-equilibrium light absorption by a thermostated material. Application of our results for the case of electron migration from valence to
I. Santamaría-Holek, N. J. López-Alamilla, A. Pérez-Madrid   +2 more
doaj   +1 more source

Latest Updates of Single-Junction Organic Solar Cells up to 20% Efficiency

Energies, 2023
Single-junction organic solar cells have reached a power conversion efficiency of 20% with narrow bandgap non-fullerene electron acceptor materials such as Y6, as well as with large band gap electron donor materials and their derivatives.
Boudia Mohamed El Amine, Yi Zhou, Hongying Li, Qiuwang Wang, Jun Xi, Cunlu Zhao   +5 more
doaj   +1 more source

An improved grid-forming control method with adaptive virtual impedance combining current limitation and transient stability improvement

International Journal of Electrical Power & Energy Systems
The virtual impedance (VI) control method is widely used to limit fault current for grid-forming converter (GFMC). However, in this article, it is found that the VI deteriorates the transient synchronization stability of the GFMC under grid faults.
Xiaoping Zhou, Lei Zhang, Hanting Peng, Lerong Hong, Qianming Xu, Zhen Zhang, Jiakun Shao, Jianchao Ma, Yizhen Hu   +8 more
doaj   +1 more source

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

Multi-Source Information Fusion for Environmental Perception of Intelligent Vehicles Using Sage-Husa Adaptive Extended Kalman Filtering

Sensors
With the rapid advancement of intelligent driving technology, multi-source information fusion has become a vital topic in the field of environmental perception.
Yibo Meng, Huifang Kong, Tiankuo Liu
doaj   +1 more source

Frequency conversion to augment power conversion efficiency in photovoltaic devices

2024 24th International Conference on Transparent Optical Networks (ICTON)
To attain high power conversion efficiencies in photovoltaic devices majorly requires proper matching between the optoelectronic properties of the photoactive layer and the solar emission spectrum for maximum absorption of the solar photon flux. Up- and down-conversion using rare earth-doped layers represent the predominantly used approaches to tune ...
Sandile Kumalo, Daniel Wamwangi, Alexander Quandt, Emily Aradi   +3 more
openaire   +2 more sources