Results 11 to 20 of about 3,309,056 (196)

Damping System Designs using Nonlinear Frequency Analysis Approach [PDF]

open access: yes, 2012
The main purpose of this thesis focuses on the investigation of the frequency domain analysis and design approaches for nonlinear damping systems. With the development of modern mechanical and civil engineering structures, the vibration control has ...
Guo, Pengfei
core   +6 more sources

A hybrid active filter for damping of harmonic resonance in industrial power systems [PDF]

open access: yes, 1998
This paper proposes a hybrid active filter for damping of harmonic resonance in industrial power systems. The hybrid filter consists of a small-rated active filter and a 5th tuned passive filter.
T. Yamasaki   +5 more
core   +1 more source

Active Vibration Control Strategy for Online Application in a Range Extender

open access: yesIEEE Access, 2023
Noise, vibration and harshness are a big issue for hybrid vehicles especially in range extenders. Traditional vibration control and active damping control are generally used for suppressing vibration.
Zhang Jinyu   +3 more
doaj   +1 more source

A Unified Active Damping for Grid and Converter Current Feedback in Active Front End Converters

open access: yesIEEE Access, 2022
The Active Front End (AFE) is interconnected to the grid with an LCL filter to reduce the switching harmonics. Possible resonances induced by the LCL filter can be damped using Active Damping (AD). In AFE applications, the current sensor can be placed on
Edi Matijevic   +3 more
doaj   +1 more source

Robust Active Damping Control for LCL-Type Shunt Active Power Filters

open access: yesIEEE Access, 2022
A dual-loop current control is discussed for LCL-type shunt active power filters (APFs), where inverter-side current feedback and point of common coupling (PCC) voltage feedforward both provide active damping (AD) effects for LCL resonance.
Lei Yang   +7 more
doaj   +1 more source

A novel active damping control based on grid-side current feedback for LCL-filter active power filter

open access: yesEnergy Reports, 2020
LCL filter is widely used in grid-connected converters for good harmonic mitigation performance. However, resonance poles of LCL filter challenge system stability, especially in a digital control system.
Tingting Gao   +3 more
doaj   +1 more source

Virtual Synchronous Generator (VSG) Control Strategy Based on Improved Damping and Angular Frequency Deviation Feedforward

open access: yesEnergies, 2023
The output active power of a grid-connected inverter controlled by a traditional virtual synchronous generator (VSG) has the problems of oscillation and steady-state errors. A VSG control strategy based on improved damping and angular frequency deviation
Sue Wang, Yuxin Xie
doaj   +1 more source

Low frequency damping of metal panels in ambient Air [PDF]

open access: yes, 2008
Mathematical models of structural dynamics are widely used and applied in many branches of science and engineering and it has been argued that many of the shortfalls with these models are due to the fact that the physics of joint dynamics are not ...
Paul Cunningham (1251771)   +8 more
core   +1 more source

Active stabilization methods of electric power systems with constant power loads: a review

open access: yesJournal of Modern Power Systems and Clean Energy, 2014
Modern electric power systems have increased the usage of switching power converters. These tightly regulated switching power converters behave as constant power loads (CPLs). They exhibit a negative incremental impedance in small signal analysis.
Mingfei Wu, Dylan Dah-Chuan Lu
doaj   +1 more source

Dynamic Modeling and Vibration Suppression of a Rotating Flexible Beam with Segmented Active Constrained Layer Damping Treatment

open access: yesAerospace, 2023
This paper uses high-order approximate coupling (HOAC) dynamics equations for the hub–beam system with segmented active constrained layer damping treatment (SACLD).
Yue Wang   +5 more
doaj   +1 more source

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