Results 11 to 20 of about 3,470,000 (296)

Active damping of multidimensional mechanic systems [PDF]

open access: yesMATEC Web of Conferences, 2017
At many motion control tasks, the problem of oscillations existence in multidimensional system with limited motion control and imperfect or complicated state quantities measurement possibility exists.
Úředníček Zdeněk, Maloch Jaroslav
doaj   +3 more sources

Semi-Active Damping of Mechanical Vibrating SystemsUsing Variable Stiffness Actuator

open access: yesAl-Khawarizmi Engineering Journal, 2008
In this research, a variable stiffness actuator is proposed to enhance the damping of the mechanical vibrating system. The frequency response analysis of the vibrating system is dependant in order to analyze and synthesis this semi-active damping, where ...
Yarub Omer Naji Al-Azzawi
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   +6 more sources

Active damping for acoustic levitation in air

open access: yesAIP Advances
Acoustic levitation is an attractive and versatile technique that offers several advantages in terms of particle size, range, reconfigurability, and ease of use with respect to alternative levitating techniques.
Vincent Bos   +3 more
doaj   +2 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

A power flow mode theory based on a system's damping distribution and power flow design approaches [PDF]

open access: yes, 2005
A power flow mode theory is developed to describe the natural power flow behaviour of a dynamic system based on its inherent damping distribution.
Xing, J.T.   +5 more
core   +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

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

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