Results 31 to 40 of about 1,150,985 (178)

Coherence‐based automatic power factor correction (APFC) algorithm for power grids

The Journal of Engineering, 2022
A power factor correction (PFC) plays a major role towards the improvement of power systems quality and stability, as well as protection and control systems performance.
Ragab Abd Allah Mahmoud, Ahmed Emam
doaj   +1 more source

Design of Boost-Type Power Factor Correction With Stepped Air-Gap Ferrite Inductor for Peak-Power-Load Condition

IEEE Access, 2022
This paper presents the designed method and the implementation of stepped air-gap ferrite inductor applied in power factor correction (PFC). Conventionally, the input inductor of the PFC has a designed consideration on the maximum output power; thus ...
Jing-Yuan Lin, Pin-Hsien Liu, Hsuan-Yu Yueh, Yi-Feng Lin   +3 more
doaj   +1 more source

SingMonitor: E-bike Charging Health Monitoring Using Sound from Power Supplies

Applied Sciences, 2023
In recent years, fire disasters caused by charging electric bicycles/moped (e-bikes) have been increasing, causing catastrophic loss of life and property; Worse still, existing fire warning systems are costly to install and maintain, and they work after ...
Xiangyong Jian, Lanqing Yang, Yijie Li, Yi-Chao Chen, Guangtao Xue   +4 more
doaj   +1 more source

On the NLO Power Correction to Photon-Pion Transition Form Factor

, 2001
We propose a perturbative evaluation for the next-to-leading-order (NLO) $O(1/Q^4)$ power correction to the photon-pion transition form factor.
A. Duncan, B. Melic, E. Braaten, F. del Aguila, F.-G. Cao, G.P. Lepage, G.P. Lepage, I.V. Musatov, J. Gronberg, J. Qiu, P. Kroll, R. Jakob, R.K. Ellis, R.K. Ellis, S.J. Brodsky, S.J. Brodsky, Tsung-Wen Yeh, V.L. Chernyak, V.M. Braun   +18 more
core   +1 more source

Improving Large Wind Turbine Power Curve by Integrating Lidar-Measured Multiple Wind Parameters: A Coastal Case Study

Energies
A new power curve that is suitable for describing large wind turbines with long blades is proposed in this study. Improving the accuracy of power generation curves for large wind turbines not only involves current wind turbine development trends but also
Yu Shi, Fei Hu, Xuelin Li, Zhe Zhang, Kang Zhang   +4 more
doaj   +1 more source

PFC Topologies for AC to DC Converters in DC Micro-Grid [PDF]

, 2016
With increasing dominance of renewable energy resources and DC household appliances, the novelty of DC micro grid is attracting significant attention. The key interface between the main supply grid and DC micro grid is AC to DC converter.
Ashraf, Muhammad, Hussain, Sajjad, Minhas, Daud Mustafa, Rashad, Muhammad   +3 more
core   +1 more source

Design and implementation of Golden Eagle optimized cascaded PI and LQR controller for PFC SEPIC converter in EV charging

Results in Engineering
This research article focuses on designing and implementing a single ended primary inductor converter (SEPIC) for an AC-DC converter, followed by an electric vehicle (EV) charger.
Vijayakumar S, Sudhakar N
doaj   +1 more source

Effectiveness of a Power Factor Correction Policy in Improving the Energy Efficiency of Large-Scale Electricity Users in Ghana

Energies, 2019
Confronting an energy crisis, the government of Ghana enacted a power factor correction policy in 1995. The policy imposes a penalty on large-scale electricity users, namely, special load tariff (SLT) customers of the Electricity Company of Ghana (ECG ...
Samuel Lotsu, Yuichiro Yoshida, Katsufumi Fukuda, Bing He   +3 more
doaj   +1 more source

High performance single stage power factor correction circuit

IET Power Electronics, 2022
Here, a new single stage single switch soft switching PFC (power factor correction) converter is presented and analysed. The proposed converter combines buck AC‐DC converter and forward DC‐DC converter and applies an auxiliary circuit to eliminate input ...
Masoud Ghazali, Ehsan Adib
doaj   +1 more source

Clinical efficacy of individual intraocular lens calculation in children with congenital cataract at risk of abnormal refraction

Российский офтальмологический журнал, 2023
Purpose. To assess the clinical efficacy of the SRK II formula with a correction factor Rm in children with congenital cataracts who are at risk of pseudophakic myopia. Material and methods.
L. S. Khamraeva, N. Kh. Latipova, D. U. Narzullaeva   +2 more
doaj   +1 more source