Results 21 to 30 of about 2,379,299 (345)

Quantitative damping reshaping method based on equivalent RLC circuits using an active damper

open access: yesIET Power Electronics, 2023
Large scale power electronic converters in renewable energy power system (REPS) constitute a complex multi‐scale high‐order non‐linear network. Harmonic amplitude amplification of specific frequency (e.g.
Fei Li   +5 more
doaj   +1 more source

Phase distortions of attosecond pulses produced by resonance-enhanced high harmonic generation [PDF]

open access: yes, 2012
Resonant enhancement of high harmonic generation can be obtained in plasmas containing ions with strong radiative transitions resonant with harmonic orders. The mechanism for this enhancement is still debated.
Bom, L. B. Elouga   +9 more
core   +4 more sources

A meta‐heuristic capacitor placement framework for distribution grids using modal resonance analysis

open access: yesIET Renewable Power Generation, 2022
Shunt capacitors are usually installed in distribution grids for power factor correction. On the other hand, the number of harmonic‐producing sources such as wind turbines (WTs), photovoltaic (PV) panels, storage units, and electronic loads is rapidly ...
Hossein Farzin, Mehdi Monadi
doaj   +1 more source

Hybrid Filters To Damp Harmonic Resonance In Power Transmission Systems

open access: yesEletrônica de Potência, 2006
Problems related to harmonic propagation in transmission systems have been noticed in the last years. Passive filters, commonly used to attenuate noncharacteristic harmonics in HVDC systems, stay at risk of disconnection from the system due to ...
Lucas F. Encarnação   +4 more
doaj   +1 more source

Second Harmonic Spectroscopy of Surface Lattice Resonances [PDF]

open access: yesNano Letters, 2018
Because of their large figures of merit, surface lattice resonances (SLRs) in metal nanoparticle arrays are very promising for chemical and biomolecular sensing in both liquid and gas media. SLRs are sensitive to refractive index changes both near the surface of the nanoparticles (surface sensitivity) and in the volume between them (bulk sensitivity ...
David C. Hooper   +6 more
openaire   +2 more sources

Harmonic resonances in granular plane Couette flow [PDF]

open access: yesEPJ Web of Conferences
The shearbanding instability patterns and bifurcations have been well-studied in granular plane Couette flow using the single-mode Landau equations. However, shearbanding modes interact with each other and undergo harmonic resonances.
Biswas Lima, Shukla Priyanka
doaj   +1 more source

On some aspects of the dynamic behavior of the softening Duffing oscillator under harmonic excitation [PDF]

open access: yes, 2016
The Duffing oscillator is probably the most popular example of a nonlinear oscillator in dynamics. Considering the case of softening Duffing oscillator with weak damping and harmonic excitation and performing standard methods like harmonic balance or ...
Lentz, Lukas, Wagner, Utz von
core   +1 more source

Analysis of harmonic resonance mechanism of PV power plant [PDF]

open access: yesE3S Web of Conferences, 2019
Great amount of PV inverters connected with the PV power plant causes the power system to become electronically power and affects the operation mode of the traditional power system.
Jing Shi   +3 more
doaj   +1 more source

A Novel Suppression Method for Low-Order Harmonics Causing Resonance of Induction Motor

open access: yesMachines, 2022
In the motor drive system of electric vehicles, there are some nonlinear factors, such as the deadtime and the conduction voltage drop of switching devices, which will generate low-order harmonics of the stator current and the torque ripple.
Pengyun Song   +4 more
doaj   +1 more source

Resonance propagation analysis for inverter‐dominated multi‐AC‐bus systems

open access: yesIET Renewable Power Generation, 2021
Harmonic resonance in a system with multiple inverters connecting to a single AC bus has been well studied in previous literature. However, in reality, a large number of distributed inverters are often classified into several groups using a few matching ...
Beihua Liang, Jinwei He, Chengshan Wang
doaj   +1 more source

Home - About - Disclaimer - Privacy