Results 21 to 30 of about 34,421 (359)

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

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

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

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

Review of Magnetorheological Damping Systems on a Seismic Building

open access: yesApplied Sciences, 2021
Building structures are vulnerable to the shocks caused by earthquakes. Buildings that have been destroyed by an earthquake are very detrimental in terms of material loss and mental trauma.
Bhre Wangsa Lenggana   +5 more
doaj   +1 more source

Control of the Weakly Damped System with the Embedded System Support

open access: yesAdvances in Electrical and Electronic Engineering, 2018
This paper deals with the experimental verification of the importance of embedded systems with an applied MEMS sensor in controlling weakly damped systems. The aim is to suppress actively residual oscillations.
Marek Paskala   +2 more
doaj   +1 more source

Identification of functional murine mitochondrial formyl peptides and their effects on myeloid‐derived suppressor cell generation

open access: yesFEBS Open Bio, EarlyView.
We first identified functional murine mitochondrial N‐formyl peptides (MT‐FPs) and investigated their effects on the in vitro myeloid‐derived suppressor cell (MDSC) generation from bone marrow cells. We demonstrated that MT‐FPs acted directly on bone marrow cells to promote MDSC generation and modulated the polymorphonuclear (PMN)‐MDSC/monocyte (M ...
Miyako Ozawa   +2 more
wiley   +1 more source

A Capacitor-Current-Feedback Active Damping Control Strategy With Phase Lead Compensation for LCL-Type Grid-Connected Inverter

open access: yesIEEE Access
Capacitor-current-feedback (CCF) active damping is widely used to deal with the hazard of LCL filter resonance in the grid-connected inverter based on either phase lead or lag compensation, and the effect of active damping on open-loop of the control ...
Xieyan Zhang, Yixuan Xie, Renwei Wu
doaj   +1 more source

Semi-Active System of Vehicle Vibration Damping

open access: yesApplied Sciences, 2021
This article discusses the vibration of a vehicle equipped with four semi-active dampers. The friction forces generated in these dampers have crucial influence on the intensity of the vehicle vibration.
Wiesław Grzesikiewicz, Michał Makowski
doaj   +1 more source

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  

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