Results 61 to 70 of about 5,739 (164)

An Overcurrent Suppression Strategy for Distributed Photovoltaic Inverters Under Unbalanced Faults Based on Adaptive Linear Active Disturbance Rejection Control

IET Smart Grid, Volume 9, Issue 1, January/December 2026.
After distributed photovoltaic (PV) systems are connected to the distribution network, the overcurrent problem caused by transient faults instantaneously threatens the safety of PV inverters and other equipment. This paper proposes a comprehensive control method that combines active‐loop adaptive linear active disturbance rejection control (A‐LADRC ...
Dandan Zhu, Qian Zhou, Yongyong Jia, Dajiang Wang, Jianhui Meng, Xintong Dong, Junyuan Zhang   +6 more
wiley   +1 more source

Validation of prognostic scores in patients with HIV‐related diffuse large B‐cell lymphoma: The value of peripheral blood parameters—A study from the Spanish Lymphoma Group GELTAMO

British Journal of Haematology, EarlyView.
Maria Huguet, Mireia Morgades, Alfredo Rivas‐Delgado, Mariana Bastos‐Oreiro, Raúl Córdoba, Antonio Salar, Fátima de la Cruz‐Vicente, Miguel Alcoceba, Blanca Ferrer‐Lores, Ana Jiménez‐Ubieto, Antonio Gutiérrez, María Infante, Sofía Huerga, Pau Abrisqueta, David Cruz, Carlos Montalbán, Ana Muntañola, Sonia González‐de Villambrosia, Josep‐Maria Ribera, José‐Tomás Navarro   +19 more
wiley   +1 more source

Study of Bursting Oscillations in VSG System With External Excitation

IEEE Access
When the virtual synchronous generator (VSG) is subjected to an external excitation and the frequency of the external excitation is much smaller than the intrinsic frequency of the VSG system, the VSG system will experience bursting oscillations, leading
Kuanmin Wei, Xiaobing Wang, Jingda Gu, Liuxue Li   +3 more
doaj   +1 more source

Frequency Regulation Capability Improvement Control Strategy for Grid‐Forming Direct‐Drive Wind Turbines

International Journal of Energy Research, Volume 2026, Issue 1, 2026.
Grid‐forming control of direct‐drive permanent magnet synchronous generator (D‐PMSG) wind turbine is an effective method to improve the frequency stability and provide inertia support for the system. In conventional virtual synchronous generator (VSG)–based grid‐forming control, fixed inertia and droop coefficients can result in poor frequency ...
Huiqiang Liu, Yongfeng Ren, Qingtian Meng, Bin He, Ruijie Xu, Chenzhi Fang, Ayman Al-Quraan   +6 more
wiley   +1 more source

VSG image processing and analysis (VSG IPA) toolbox [PDF]

, 2013
The VSG TOOLBOX is a free MATLAB compatible image processing and analysis toolbox which provides high level access to a wide range of image processing and analysis algorithms. This toolbox requires MathWorks' MATLAB 7.1 or later BUT DOES NOT REQUIRE the MathWorks' Image Processing Toolbox.
openaire  

Variant Surface Glycoprotein gene repertoires in Trypanosoma brucei have diverged to become strain-specific

BMC Genomics, 2007
Background In a mammalian host, the cell surface of African trypanosomes is protected by a monolayer of a single variant surface glycoprotein (VSG). The VSG is central to antigenic variation; one VSG gene is expressed at any one time and there is a low ...
Sharma Reuben, Mott Helen, Jones Nicola G, Picozzi Kim, Hutchinson O Clyde, Welburn Susan C, Carrington Mark   +6 more
doaj   +1 more source

Enhanced control and parameter analysis for virtual synchronous generators without PLL

The Journal of Engineering, 2019
Currently, virtual synchronous generator (VSG) technology is proposed to be a solution to stability controlling of micro-source inverter. However, the deviation from phase locked loop (PLL) influences the reference frequency calculating which is ...
Bo Zhang, Xueyuan Zhang, Zijun Song, Xiangwu Yan   +3 more
doaj   +1 more source

VSG Catastrophe Mechanism Based on Bifurcation and Catastrophe Theories

Zhongguo dianli
The virtual synchronous generator (VSG) may have problems that the system bifurcation curve changes and the VSG voltage drops or rises due to catastrophe phenomena during operation, which is not conducive to the stable operation of the VSG.
Xiaoyang MA, Shun YANG, Yu LIU, Xiaobing WANG, Ying WANG   +4 more
doaj   +1 more source

TelAP2 links TelAP1 to the telomere complex in Trypanosoma brucei

Scientific Reports
The extracellular parasite Trypanosoma brucei evades the immune system of the mammalian host by periodically exchanging its variant surface glycoprotein (VSG) coat.
Nadine Weisert, Verena Majewski, Laura Hartleb, Katarina Luko, Liudmyla Lototska, Nils Christian Krapoth, Helle D. Ulrich, Christian J. Janzen, Falk Butter   +8 more
doaj   +1 more source

Discrete-Time Impedance Model-Based Dynamic Analysis and Parameter Design for VSG-Controlled Grid-Forming DG System

Energies
The virtual synchronous generator (VSG) scheme has proven to be an attractive solution in grid-forming converter applications integrated into distributed generation (DG) systems.
Thiago F. do Nascimento, Josenalde B. Oliveira, Elmer R. L. Villarreal, Andrés O. Salazar   +3 more
doaj   +1 more source