Results 31 to 40 of about 2,379,299 (345)

Analysis and Suppression of Harmonic Resonance in Photovoltaic Grid-Connected Systems

open access: yesEnergies
In photovoltaic grid-connected systems, the interaction between grid-connected inverters and the grid may cause harmonic oscillation, which severely affects the normal operation of the system.
Tong Zhu   +7 more
semanticscholar   +1 more source

Optimization Configuration of Grid-Connected Inverters to Suppress Harmonic Amplification in a Microgrid

open access: yesEnergies, 2022
This paper provides insight into the optimal configuration scheme of the grid-connected inverters based on harmonic amplification suppression. The connection of the inverters changes the natural resonance frequencies of the grid.
Xing Sun   +4 more
doaj   +1 more source

Design and application of a single‐tuned passive harmonic filter to suppress harmonic distortion and resonance for railway traction power systems—A case study

open access: yesIET Electrical Systems in Transportation, 2022
The railway traction loads produce massive harmonics that are injected directly into the traction power system. This causes serious waveform distortion in the supply voltage and even invokes a harmonic parallel resonance, which may lead to significant ...
Wei‐Hsiang Ko, Martti Tuomainen
doaj   +1 more source

Controlling soliton interactions in Bose-Einstein condensates by synchronizing the Feshbach resonance and harmonic trap

open access: yes, 2008
We present how to control interactions between solitons, either bright or dark, in Bose-Einstein condensates by synchronizing Feshbach resonance and harmonic trap.
Chen, X. Z.   +4 more
core   +1 more source

Second harmonic resonance in electrohydrodynamics [PDF]

open access: yesQuarterly of Applied Mathematics, 1986
Summary: The stability of the nonlinear waves on the surface of a perfectly conducting fluid in the presence of an applied electric field was investigated by the second author, \textit{R. K. Jndia} and the first author [ibid. 39, 23-32 (1981; Zbl 0464.76009)].
Malik, S. K., Kant, Rama
openaire   +1 more source

Vibrational Amplitude Frequency Characteristics Analysis of a Controlled Nonlinear Meso-Scale Beam

open access: yesActuators, 2021
Vibration response and amplitude frequency characteristics of a controlled nonlinear meso-scale beam under periodic loading are studied. A method including a general analytical expression for harmonic balance solution to periodic vibration and an updated
Zu-Guang Ying, Yi-Qing Ni
doaj   +1 more source

Finite Size Effect on Nanomechanical Mass Detection: Role of Surface Elasticity

open access: yes, 2011
Nanomechanical resonators have recently been highlighted because of their remarkable ability to perform the sensing and detection. Since the nanomechanical resonators are characterized by large surface-to-volume ratio, it is implied that the surface ...
Dai, Mai Duc, Eom, Kilho, Kim, Chang-Wan
core   +1 more source

Soliton and quasi-soliton frequency combs due to second harmonic generation in microresonators

open access: yes, 2019
We report how a doublet of the symmetric oppositely tilted bistable resonance peaks in a microring resonator with quadratic nonlinearity set for generation of the second harmonic can transform into a Kerr-like peak on one side of the linear cavity ...
Skryabin, Dmitry V., Villois, Alberto
core   +1 more source

Resonant plasmonic nanoparticles for multicolor second harmonic imaging [PDF]

open access: yes, 2016
Nanoparticles capable of efficiently generating nonlinear optical signals, like second harmonic generation, are attracting a lot of attention as potential background-free and stable nano-probes for biological imaging.
Accanto, Nicolò   +4 more
core   +2 more sources

A system-level harmonic mitigation method for HVDC systems – A practical case study

open access: yesInternational Journal of Electrical Power & Energy Systems
In recent years, non-characteristic harmonic resonance was observed in several high-voltage direct current (HVDC) systems in China. Intuitively, additional filters can be installed to mitigate the resonance.
Yang Wang   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy