Results 1 to 10 of about 10,197 (257)

Micro-Fabricated Resonator Based on Inscribing a Meandered-Line Coupling Capacitor in an Air-Bridged Circular Spiral Inductor [PDF]

open access: yesMicromachines, 2018
This letter presents a high-performance micro-fabricated resonator based on inscribing a meandered-line square coupling capacitor in an air-bridged circular spiral inductor on the GaAs-integrated passive device (IPD) technology.
Eun Seong Kim, Nam Young Kim
doaj   +4 more sources

Improvement of methods for diagnosing an oil-filled high-voltage coupling capacitor

open access: yesTrudy Odesskogo Politehničeskogo Universiteta, 2022
Oil-filled high-voltage capacitors are used in high-frequency electrical communication systems, the reliability of which is highly demanding. The article is devoted to the improvement of procedures for diagnosing an oil-filled high-voltage coupling ...
Сергій Володимирович Зайцев   +4 more
doaj   +5 more sources

Efficiency improvement of a three-coil WPT system with rectified load based on a selected compensation capacitor

open access: yesAutomatika, 2023
In the existing pieces of literature about the three-coil wireless power transfer (WPT) system, a three-coil structure is proposed to increase the efficiency compared to the two-coil WPT system.
Han Liu, Jing Lu
doaj   +1 more source

Re-Examination of DFIG-Based Wind Park Small-Signal Instability

open access: yesIEEE Access, 2023
Doubly-fed induction generator-based wind park (DFIG-WP) can interact with both series-capacitor compensated and weak (low short circuit ratio) grids, thus causing instability, and called as series-capacitor sub-synchronous oscillation (SSO) and weak ...
Tao Xue   +3 more
doaj   +1 more source

Power Transformer Condition Monitoring Based on Evaluating Oil Properties

open access: yesMachines, 2022
The authors review the techniques applied to diagnose oil aging. Further, the authors put forward a new diagnostic method. It stipulates for an additional high-frequency measuring loop formed in an operating transformer.
Ivan V. Bryakin   +4 more
doaj   +1 more source

Minimization of the Decoupling Circuit (DC-Link) in Induction Motors

open access: yesApplied Sciences, 2023
There is currently a growing interest in replacing the internal combustion engine with electric motors in transportation applications. However, there are different problems related to electric motors for this application. One of them is the oversizing of
Luis Mauricio Carrillo-Santos   +5 more
doaj   +1 more source

Measuring device for systems of technical vibro-diagnosis of power equipment

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2023
RELEVANCE. Among the various methods for assessing the technical condition of power equipment, vibration diagnostics occupies an important place. Therefore, improving the quality of hardware for vibration diagnostics is currently extremely important ...
I. V. Bryakin, I. V. Bochkarev
doaj   +1 more source

Compact 500 MHz Coupled Resonators Design Analyzed by J-Inverters for Wireless Power Transfer (WPT) Utilization [PDF]

open access: yesSVU-International Journal of Engineering Sciences and Applications, 2021
In this work, a compact structure employing complementary split ring resonator defected ground structure (CSRR-DGS) and loaded with a chip capacitor for wireless power transfer (WPT) applications is suggested and discussed.
Hany Atallah   +2 more
doaj   +1 more source

Study on the Effect of Non-Symmetrical Current Distribution Controlled by Capacitor Placement in Radio-Frequency Coils for 7T MRI

open access: yesBiosensors, 2022
In this paper, we present a study on the effects of varying the position of a single tuning capacitor in a circular loop coil as a mechanism to control and produce non-symmetric current distribution, such that could be used for magnetic resonance imaging
Daniel Hernandez   +4 more
doaj   +1 more source

Vibration Model of a Power Capacitor Core under Various Harmonic Electrical Excitations

open access: yesEnergies, 2022
Power capacitors are widely used in power transmission systems. During their operation, an electric force acting on the electrodes of the power capacitors actuates mechanical vibrations and radiates an audible noise.
Jinyu Li   +3 more
doaj   +1 more source

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