Results 41 to 50 of about 10,974 (221)

State observer to improve the VSG control stability [PDF]

IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society, 2020
This paper proposes an observer-based current controller for a virtual synchronous generators (VSG) to improve its operational performances. First, the model and the controllers are analytically described. Two controller are compared to the proposed one (PI integrating a state observer): a traditional PI and a PI integrating virtual impedances for ...
Audrey Moulichon, Mazen Alamir, Lauric Garbuio, Vincent Debusschere, Mustapha Amine Rahmani, Cédric Boudinet, William Noris, Nouredine Hadjsaid   +7 more
openaire   +2 more sources

Improved Virtual Synchronous Generator-Based Control Scheme for Enhanced Transient Response in Microgrids

Engineering Proceedings, 2023
Synchronous generator-based power stations, with their inherent inertia, can maintain frequency stability during sudden load switching, while distributed generating station-driven microgrids suffer from a lack of natural inertia. Cascaded power, voltage,
Mandarapu Srikanth, Yellapragada Venkata Pavan Kumar   +1 more
doaj   +1 more source

The genome sequence of Trypanosoma brucei gambiense, causative agent of chronic Human African Trypanosomiasis [PDF]

, 2010
<p><b>Background:</b> <i>Trypanosoma brucei gambiense</i> is the causative agent of chronic Human African Trypanosomiasis or sleeping sickness, a disease endemic across often poor and rural areas of Western and Central ...
Martin A Aslett, Hertz-Fowler Christiane, Chukualim, B., Gibson, W., Melville, S.E., Jackson Andrew P., Jackson, A.P., Jackson, A., Capewell, P., Sanders Mandy, Annette MacLeod, McQuillan, J, Quail, M.A., MacLeod Annette, Melville Sara E., Melville, S., McQuillan, J., Paul Capewell, Aslett Martin A., Bridget Chukualim, MacLeod, A., Aslett, M., Hertz-Fowler, C., McQuillan Jacqueline, Aslett, M.A., Mandy Sanders, Berry Andrew, Michael A Quail, Barry, J.D., Berriman, M., Sanders, M., Wendy Gibson, Sara E Melville, Jacqueline McQuillan, Gibson, WC, Quail Michael A., Berry, A., J David Barry, Andrew P Jackson, Andrew Berry, Christiane Hertz-Fowler, Matthew Berriman, Chukualim Bridget, Gibson Wendy, Barry J. David, Capewell Paul, Berriman Matthew   +46 more
core   +1 more source

Simulation structure based on VSG strategy.

, 2022
Simulation structure based on VSG strategy.
Qiaozhen Zhang (14241811), Chuanjiang Li (4731213), Jie Wu (10038), Shiyi Yin (14241808)   +3 more
core   +1 more source

Research of inverter parallel control based on improved parameter adaptive VSG

Diance yu yibiao
Virtual synchronous generators (VSG) technology is widely used in grid-connected and multi-machine parallel control strategies for inverter systems because of its ability to simulate synchronous generators and make distributed power sources also have ...
XUE Jiaxiang, HU Xuan, ZHANG Xiangying
doaj   +1 more source

An improved VSG control method for GFM converters based on backstepping control

Zhejiang dianli
In response to problems such as poor dynamic performance， slow response speed， and significant steady-state errors in conventional virtual synchronous generator （VSG） control when handling power command changes or sudden faults， this paper proposes an ...
GAO Sirui, YU Yang
doaj   +1 more source

A voltage regulation method for active power reserve-based grid-forming photovoltaic inverters

Zhejiang dianli
The increasing penetration of distributed photovoltaic （PV） systems in low-voltage distribution areas has led to growing voltage violations due to source-load mismatch and inadequate reactive power support.
ZHANG Tianhan, WU Junfei, ZHOU Xing, YANG Bin, HONG Jianjun, YU Miao, DAI Yile   +6 more
doaj   +1 more source

A full sequence impedance modelling and stability analysis of the virtual synchronous generator with inner loops

IET Renewable Power Generation, 2021
Virtual synchronous generator (VSG) has been widely studied owing to its inertia support to the grid. However, the stability of VSG is not analysed accurately for actual applications in previous studies that overlook voltage and current inner loops of ...
Yang Peng, Yue Wang, Yonghui Liu, Peng Yu, Sirui Shu, Wanjun Lei   +5 more
doaj   +1 more source

The impact of mutation and gene conversion on the local diversification of antigen genes in African trypanosomes [PDF]

, 2012
Patterns of genetic diversity in parasite antigen gene families hold important information about their potential to generate antigenic variation within and between hosts.
J. D. Barry, D. T. Haydon, Gjini, E., Barry, J.D., Cobbold, C.A., Haydon, D.T., E. Gjini, C. A. Cobbold   +7 more
core   +1 more source

Self-tuning virtual synchronous generator control for improving frequency stability in autonomous photovoltaic-diesel microgrids

Journal of Modern Power Systems and Clean Energy, 2017
This paper investigates the use of a virtual synchronous generator (VSG) to improve frequency stability in an autonomous photovoltaic-diesel microgrid with energy storage.
Rongliang SHI, Xing ZHANG, Chao HU, Haizhen XU, Jun GU, Wei CAO   +5 more
doaj   +1 more source