Results 21 to 30 of about 139,680 (346)

Coordinated suppression strategies for passive and active resonances of the MMC‐HVDC AC‐side system on the medium‐ and high‐frequency bands

open access: yesIET Generation, Transmission & Distribution, 2023
The medium‐ and high‐frequency resonance between modular multilevel converters (MMCs) and the AC grid has attracted increasing attention due to the frequent occurrence of resonance events in recent years.
Feng Dai   +3 more
doaj   +1 more source

Resonance suppression strategy of DC distribution system based on reduced-order hybrid control algorithm

open access: yesFrontiers in Energy Research, 2023
As a complex dynamically strongly coupled system, DC distribution system often suffers from voltage collapse due to system resonance. In order to suppress distribution network resonance and bus voltage fluctuation, this paper proposes a hybrid control ...
Zonghua Zheng   +4 more
doaj   +1 more source

Research on a risk evaluation and suppression method for high-frequency resonance of flexible low-frequency transmission

open access: yesZhejiang dianli, 2022
Due to the long delay of their control chains, voltage source converters (VSCs) in the high frequency band tend to show negative damping, which may give rise to high-frequency resonance when VSCs are connected to power systems.
HUA Wen   +6 more
doaj   +1 more source

Suppressing subsynchronous resonance with static filters

open access: yesIEE Proceedings C Generation, Transmission and Distribution, 1981
The design, mode of operation and limitations of static-subsynchronous-resonance (SSR) suppression filters are described. The effectiveness of these filters is evaluated by eigenvalue analyses using linearized mathematical models and transient simulations.
Limebeer, D, Harley, R, Lahoud, M
openaire   +2 more sources

Study on Suppression of Combustion Instability using Quarter Wavelength Tube [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
The passive suppression of combustion instability by quarter wavelength tube was hereby studied to absorb the oscillation pressure with large amplitudes caused by combustion instability.
C. Liu   +5 more
doaj   +1 more source

Optimal Online Resonance Suppression in a Drive System Based on a Multifrequency Fast Search Algorithm

open access: yesIEEE Access, 2021
The resonant frequency drift caused by the change in mechanical parameters will cause the servo mechanism of CNC machine tools, robots and other equipment to produce mechanical resonance again.
Jiakuan Xia, Zhiyan Guo, Zexing Li
doaj   +1 more source

Dynamic Resonance Analysis and Oscillation Damping of Multiterminal DC Grids

open access: yesIEEE Access, 2017
Voltage-source converter-based multiterminal high-voltage direct current (VSC-MTDC) systems/grids are prone to system instability. This critical issue is overlooked in the literature. In order to improve system stability, this paper proposes an effective
Yuchao Liu   +5 more
doaj   +1 more source

Suppression of the eighth-order space-charge-induced resonance

open access: yesPhysical Review Accelerators and Beams, 2022
The eighth-order space-charge-induced resonance 8ν_{y}=171 was identified as the source of beam losses and suppressed in the main ring synchrotron of the Japan Proton Accelerator Research Complex.
Takaaki Yasui, Yoshinori Kurimoto
doaj   +1 more source

High Frequency Resonance Frequency Shift Method for Cable Distribution System

open access: yesZhongguo dianli, 2021
In order to solve the problem of high frequency resonance in cable distribution network, a high frequency resonance frequency shift method based on impedance reconstruction of distribution network is proposed.
Mingxing ZHU, Binbin KONG, Huaying ZHANG
doaj   +1 more source

Research on extraction method of tunnel magnetic resonance detection signal based on collaborative filtering

open access: yesAIP Advances, 2022
Magnetic resonance detection of tunnel as a non-invasive, direct and quantitative geophysical method for detecting groundwater has attracted much attention in the research of tunnel water hazard early warning. In view of the complex environment where the
Shu Diao, Bori Shi, Aoshu Xu
doaj   +1 more source

Home - About - Disclaimer - Privacy