Results 61 to 70 of about 1,361,221 (313)

A Voltage Sensitivity Based Equivalent for Active Distribution Networks Containing Grid Forming Converters

, 2023
28252836The evolution of load-dominated to active distribution networks with significant dispersed generation calls for accurate models of these networks in the context of system stability analysis.
Hendrik Lens, Lens, Hendrik, Biener, Wolfgang, Jakob Ungerland, Ungerland, Jakob, Wolfgang Biener, Poshiya, Nikhilkumar, Nikhilkumar Poshiya   +7 more
core   +1 more source

Comparison Study of the Wideband Oscillation Risk of MMC between Grid-Following and Grid-Forming Control

Energies
Currently, research on the small-signal stability of grid-forming converters under two control modes, grid-following and grid-forming, mainly focuses on low-level converters.
Yanjun Cheng, Jun Xie, Chuihui Zeng, Shiqi Yang, Haichang Sun, Liang Qin   +5 more
doaj   +1 more source

Additive Gaussian Process Regression for Predictive Design of High‐Performance, Printable Silicones

Advanced Engineering Materials, EarlyView.
A chemistry‐aware design framework for tuning printable polydimethylsiloxane (PDMS) for vat photopolymerization (VPP) is developed using additive Gaussian process (GP) modeling. Polymer network mechanics informs variable groupings, feasible formulation constraints, and interaction variables.
Roxana Carbonell, Martha Leach, Hongtao Song, Carolyn Seepersad   +3 more
wiley   +1 more source

Distributed ReStart: Nonconventional BlackStart Resources : RTDS Based Network Energization from Grid Forming Converters: Part 2 [PDF]

, 2022
This report summarizes the results achieved in investigating the use of grid-forming converters (GFC) control for black-start applications, as part of the Distributed ReStart project collaboration between SPEN and Iberdrola Innovation Middle East.
Burt, Graeme, Egea-Alvarez, Agusti, Ahmed, Khaled, Syed, Mazheruddin, Alassi, Abdulrahman, Feng, Zhiwang   +5 more
core  

AC-Side Impedance-Based Stability Assessment in Grid-Forming Modular Multilevel Converters

IEEE Access
Grid-forming converters can emulate the behavior of a synchronous generator through frequency droop control. The stability of grid-forming modular multilevel converters can be studied via the impedance-based stability criterion. This paper presents an ac-
Mehrdad Nahalparvari, Mohsen Asoodar, Staffan Norrga, Hans-Peter Nee   +3 more
doaj   +1 more source

Dual Grid-Forming Converter

IEEE Transactions on Power Systems
This letter proposes a dual model for grid-forming (GFM) controlled converters. The model is inspired from the observation that the structures of the active and reactive power equations of lossy synchronous machine models are almost symmetrical in terms of armature resistance and transient reactance. The proposed device is able to compensate grid power
openaire   +2 more sources

Combined Process‐ and Phase‐Field‐Simulation to Predict the Microstructure of Single‐Crystal Ni‐Based Superalloys

Advanced Engineering Materials, EarlyView.
A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm, André B. Baldissera, Rainer Völkl, Uwe Glatzel   +3 more
wiley   +1 more source

Agent-Based Virtual Organisations for the Grid [PDF]

, 2005
The ability to create reliable, scalable virtual organisations (VOs) on demand in a dynamic, open and competitive environment is one of the challenges that underlie Grid computing.
Michael Luck, Fiddian, N. J., Simon Thompson, Preece, Alun, Preece, A., W. T. Luke Teacy, Luck, Michael; id_orcid, Jigar Patel Luke, Nir Oren, Chalmers, S, Peter M. D. Gray, Patrick J. Stockreisser, Patel, Jigar, Jennings, NR, Gray, Peter M. D., Teacy, WTL, Preece, Alun David, Gray, PMD, Stockreisser, PJ, Gray, William Alexander, Nick J Fiddian, Gray, W. Alex, Chalmers, Stuart, W T Luke Teacy, Teacy, W. T. Luke, Stockreisser, Patrick J., Stockreisser, Patrick Jean, Shao, J, Gray, W. A., Nicholas R. Jennings, Jennings, Nicholas R., Chalmers, S., Oren, N, Thompson, Simon, Shao, J., Luck, M., Stockreisser, P. J., Shercliff, G., Stockreisser, P.J., Nick J. Fiddian, Gray, W.A., Fiddian, N.J., Fiddian, Nicholas John, Luck, M, Nicholas R Jennings, Preece, A, Luck, Michael, Jennings, N. R., Teacy, W.T.L., Shercliff, Gareth, Stuart Chalmers, W Alex Gray, Norman, Timothy, Jianhua Shao, Fiddian, Nick J., Patrick J Stockreisser, Patel, J, Shao, Jianhua, Norman, Timothy J., Patel, J., Thompson, S., Gareth Shercliff, Jigar Patel, Norman, TJ, Gray, P.M.D., Fiddian, NJ, Alun Preece, Shercliff, G, W. Alex Gray, Thompson, S, Timothy J. Norman, Gray, WA, Oren, Nir, Oren, N.   +73 more
core   +1 more source

Enhanced dynamic support strategies of grid-forming-PMSG based on DC-voltagesynchronization: Frequency and Q support perspective

International Journal of Electrical Power & Energy Systems
The DC-Voltage Synchronization based Grid-Forming PMSG has voltage source characteristics, e.g. frequency and reactive power support function, however, the support capability is limited, and the regulation potential is not fully utilized.
Dejian Yang, Tongyu Hu, Taiying Zheng, Minhui Qian, Chaoquan Li, Zhijie Cao, Gangui Yan   +6 more
doaj   +1 more source

Stability enhancement strategies for a 100% grid‐forming and grid‐following converter‐based Irish power system

IET Renewable Power Generation, 2022
With increasing shares of wind and/or solar power in many power systems, the possibility of a 100% power converter‐based system becomes more likely. Consequently, the dynamic response of the Irish transmission systems with 100% (grid‐following and grid ...
Xianxian Zhao, Damian Flynn
doaj   +1 more source