Results 21 to 30 of about 3,167,411 (345)

"Weak Grids "Weak Grids and and GridGrid--Forming Converters"Forming Converters"

, 2021
This presentation was part of the SP5 & SP6 WEBINAR on Grid solutions to realize 450 GW of offshore wind capacity by 2050.
openaire   +1 more source

Double‐stage grid‐integrated SPV system under weak distribution grid

IET Renewable Power Generation, 2020
This study presents a three‐phase four‐wire grid‐tied solar photovoltaic (SPV) energy conversion system with a reduced ordered generalised integrator frequency locked loop (ROGI‐FLL) based control for the extraction of fundamental grid voltages. The reference grid currents are extracted by using the proposed filtered‐s least mean square (FsLMS) current
Abhishek Kumar, Rashmi Jain, Bhim Singh, Seema Kewat   +3 more
openaire   +1 more source

Control Scheme and Performance Analysis of Dual-Frequency Single-Phase Grid-Connected Inverter Interfaced With Weak and Distorted Grids

IEEE Access, 2020
Grid impedance variation and voltage harmonics may cause instability of the grid-connected inverter system and reduce the grid current quality under weak grid.
Liyong Yang, Xiaojuan He, Peng Zhang, Shuo Liu   +3 more
doaj   +1 more source

An alternative current-error based control for VSC integration to weak grid [PDF]

, 2018
An enhanced current control strategy is proposed for voltage source converters for the integration to weak grids. The control derives from the current-error based vector control.
Chen, Dong, Givaki, Kamyab, Xu, Lie, Xu, Yan   +3 more
core   +1 more source

Frequency Coupling Suppression Control Strategy for Single-Phase Grid-Tied Inverters in Weak Grid

IEEE transactions on industrial electronics (1982. Print), 2022
In single-phase voltage source inverters under a weak grid, the frequency coupling, caused by the asymmetrical system structure, poses a challenge to system modeling and controller design.
Jianheng Lin, M. Su, Yao Sun, Dongsheng Yang, Shiming Xie, Wenjing Xiong, Guanguan Zhang   +6 more
semanticscholar   +1 more source

Transient characteristics and adaptive fault ride through control strategy of DFIGs considering voltage phase angle jump

Journal of Modern Power Systems and Clean Energy, 2017
Wind power in China has experienced fast development in recent years. However, areas rich in wind power resources are often far away from loads centers, which leads to weak connection between wind turbines and power grid.
Xinshou Tian, Yongning Chi, Weisheng Wang, Gengyin Li, Haiyan Tang, Zhen Wang   +5 more
doaj   +1 more source

Three-dimensional adaptive evolution of gravitational waves in numerical relativity [PDF]

, 2000
Adaptive techniques are crucial for successful numerical modeling of gravitational waves from astrophysical sources such as coalescing compact binaries, since the radiation typically has wavelengths much larger than the scale of the sources.
B. Brügmann, D. DeZeeuw, Dae-Il Choi, G. Cook, H. O. Kreiss, J. Massó, Joan M. Centrella, K. Eppley, Kevin Olson, Kimberly C. B. New, M. Berger, M. Berger, M. Choptuik, M. Choptuik, M. Shibata, Mijan F. Huq, P. Anninos, P. Diener, P. MacNeice, P. Papadopoulos, Peter MacNeice, R. Hamade, S. A. Teukolsky, S. A. Teukolsky, T. W. Baumgarte   +24 more
core   +2 more sources

Frequency regulation optimization strategy of improved virtual synchronous generator under ultra-weak grid conditions [PDF]

AIP Advances
To enhance the frequency support capability of grid-forming energy storage systems governed by Virtual Synchronous Generators (VSGs) under ultra-weak grid conditions, an improved VSG frequency support strategy is proposed based on model predictive ...
Xucun Guo, Yongfeng Ren, Rong Zhu, Bin He, Chenzhi Fang, Ruijie Xu   +5 more
doaj   +1 more source

Microscopic Calculations of Weak Interaction Rates of Nuclei in Stellar Environment for A = 18 to 100 [PDF]

, 1999
We report here the microscopic calculation of weak interaction rates in stellar matter for 709 nuclei with A = 18 to 100 using a generalized form of proton-neutron quasiparticle RPA model with separable Gamow-Teller forces.
Klapdor-Kleingrothaus, H. V., Nabi, J. -U.   +1 more
core   +2 more sources

Modeling and Control Parameters Design for Grid-Connected Inverter System Considering the Effect of PLL and Grid Impedance

IEEE Access, 2020
Small-signal stability problems often occur when the inverter for renewable energy generation is connected to weak grid. A small-signal transfer function integrated model reflecting the interaction of grid impedance, phase locked-loop (PLL), and current ...
Zhiwei Xie, Yandong Chen, Wenhua Wu, Yuancan Xu, Haining Wang, Jian Guo, An Luo   +6 more
doaj   +1 more source