Results 11 to 20 of about 67,464 (300)

Virtual Impedance Impact on Inverter Control Topologies [PDF]

open access: yes2018 7th International Conference on Renewable Energy Research and Applications (ICRERA), 2018
The different nature of the energy resources requires high reliable power inverters to supply regulated power to the end customer and to ease its integration within the microgrid. In this paper, modeling, design and control of inverters are presented for two different topologies.
Issa, Walid   +1 more
openaire   +4 more sources

Virtual impedance based low-voltage distribution grid topology detection using double hidden layer recurrent neural network

open access: yesFrontiers in Energy Research, 2023
Low-voltage distribution grid (LVDG) topology detection refers to detecting whether the topology connection between distribution grid nodes is correct. Accurate topology connection is critical for the normal operation and planning of LVDG.
Yi Xuan   +7 more
doaj   +1 more source

Microgrid operation improvement by adaptive virtual impedance [PDF]

open access: yesIET Renewable Power Generation, 2018
Microgrids (MGs) are regarded as the best solution for optimal integration of the renewable energy sources into power systems. However, novel control strategies should be developed because of the distinct inherent feature of MG components in comparison to conventional power systems.
Eskandari, M, Li, L
openaire   +2 more sources

Output Impedance Diffusion into Lossy Power Lines [PDF]

open access: yes, 2017
Output impedances are inherent elements of power sources in the electrical grids. In this paper, we give an answer to the following question: What is the effect of output impedances on the inductivity of the power network?
De Persis, Claudio   +3 more
core   +8 more sources

Stability Analysis and Optimal Design for Virtual Impedance of 48 V Server Power System for Data Center Applications

open access: yesEnergies, 2020
In the past literature on virtual impedance to series systems, most of the discussion focused on stability without in-depth research on the system design of the series converter and the overall output impedance. Accordingly, this study takes an open-loop
Chien-Chun Huang   +2 more
doaj   +1 more source

Decentralized Virtual Impedance- Conventional Droop Control for Power Sharing for Inverter-Based Distributed Energy Resources of a Microgrid

open access: yesEnergies, 2022
The work presents the power-sharing in a standalone low voltage AC microgrid consisting of three parallel grid supporting inverters using a virtual impedance-based droop system.
Elutunji Buraimoh   +3 more
doaj   +1 more source

Virtual Training Laboratory for Primary Impedance Metrology

open access: yesIEEE Transactions on Instrumentation and Measurement, 2023
This article presents the concept and some aspects of the physical implementation of a virtual training laboratory (VTL) in the field of primary impedance metrology. The creation of a VTL provides a novel method of disseminating metrological knowledge and expertise in a practical way and at a low cost. It will expose new users to the live experience of
Janusz Kaczmarek   +9 more
openaire   +3 more sources

Selective virtual capacitive impedance loop for harmonic voltage compensation in islanded microgrids [PDF]

open access: yes, 2013
Parallel inverters having LCL output filters cause voltage distortions at the point of common coupling (PCC) in islanded microgrids when non-linear loads are present.
Apap, Maurice   +4 more
core   +1 more source

A unified droop control of AC microgrids under different line impedances: Revisiting droop control and virtual impedance method

open access: yesFrontiers in Energy Research, 2023
Classical droop control and virtual impedance methods play crucial roles in improving the system voltage/frequency stability and autonomous power control.
Lei Wang   +7 more
doaj   +1 more source

A spatial impedance controller for robotic manipulation [PDF]

open access: yes, 1997
Mechanical impedance is the dynamic generalization of stiffness, and determines interactive behavior by definition. Although the argument for explicitly controlling impedance is strong, impedance control has had only a modest impact on robotic ...
Broenink, Jan F., Fasse, Ernest D.
core   +2 more sources

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