Results 31 to 40 of about 199,554 (295)

Geometry-based Estimation of Stability Region for A Class of Structure Preserving Power Grids [PDF]

, 2015
The increasing development of the electric power grid, the largest engineered system ever, to an even more complicated and larger system requires a new generation of stability assessment methods that are computationally tractable and feasible in real ...
Turitsyn, Konstantin, Vu, Thanh Long
core   +3 more sources

An optimal allocation strategy for GFM and GFL converters considering transient voltage stability constraints

Zhejiang dianli
The hybrid grid-forming （GFM） and grid-following （GFL） converter integration systems combine the technical advantages of GFM voltage sources and GFL current sources.
LI Qun, TANG Weijia, WANG Chenggen, ZHANG Sen   +3 more
doaj   +1 more source

A study of the transient synchronization stability of PLL-GFC-based MMC-HVDC systems

Zhejiang dianli, 2023
Phase-locked loop-based grid-forming converters （PLL-GFCs） can regulate frequency and voltage. However， the transient synchronization stability after their connection to the high-voltage AC power grid is unclear.
HUA Wen, DONG Wei, YE Lin, LI Sixun, ZHANG Zheren, XU Zheng   +5 more
doaj   +1 more source

Optimal Battery Energy Storage Placement for Transient Voltage Stability Enhancement

, 2019
A placement problem for multiple Battery Energy Storage System (BESS) units is formulated towards power system transient voltage stability enhancement in this paper. The problem is solved by the Cross-Entropy (CE) optimization method.
Dai, Renchang, Liu, Chengxi, Liu, Guangyi, Xu, Yiran, Zhu, Yongli   +4 more
core   +1 more source

Effects of energy storage systems grid code requirements on interface protection performances in low voltage networks [PDF]

, 2017
The ever-growing penetration of local generation in distribution networks and the large diffusion of energy storage systems (ESSs) foreseen in the near future are bound to affect the effectiveness of interface protection systems (IPSs), with negative ...
Bignucolo, Fabio, Cerretti, Alberto, Coppo, Massimiliano, Savio, Andrea, Turri, Roberto   +4 more
core   +2 more sources

The HIT Network for Children and Adolescents With CNS Tumors Facilitates Improvements of Diagnostic Assessments, Multimodal Treatments, Individual Counseling, and Research in Germany, Austria, and Switzerland

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background The HIT network was established in 2000 to create a population‐based structure aiming to improve survival rates and reduce late effects for children with central nervous system (CNS) tumors by conducting comprehensive clinical trials.
Stefan Rutkowski, Michael C. Frühwald, Gudrun Fleischhack, Stephan Tippelt, Pablo Hernáiz‐Driever, Olaf Witt, Astrid Gnekow, Christof Kramm, Matthias Eyrich, Johannes E. A. Wolf, Hermann Müller, Carsten Friedrich, Uwe R. Kordes, Denise Obrecht‐Sturm, Petra Ketteler, Barbara von Zezschwitz, Pascal Johann, Dominik Sturm, Karoline Nemes, Stefan Schönberger, Till Milde, Brigitte Bison, Monika Warmuth‐Metz, Torsten Pietsch, Ulrich Schüller, Arend Koch, David Capper, Martin Hasselblatt, Christian Thomas, Christian Hagel, Stefan M. Pfister, Felix Sahm, David T. W. Jones, Martin U. Schuhmann, Jürgen Krauss, Pedram Emami, Ahmed El Damaty, Rolf D. Kortmann, Rudolf Schwarz, Jürgen Debus, Mechthild Krause, Fabian Pohl, Holger Ottensmeier, Lisa Bußenius, Katja Baust, Andreas Faldum, Cecile Ronckers, Desiree Grabow, Martin Benesch, Thomas Perwein, Karin Dieckmann, Irene Slavc, Johannes Gojo, Nicolas U. Gerber, André O. von Bueren, Katrin Scheinemann, Gabriele Calaminus, Beate Timmermann, Ulrich‐Wilhelm Thomale, Martin Mynarek   +59 more
wiley   +1 more source

Voltage instability analysis on the Sabah grid system: a case study my [PDF]

, 2013
With the development of the power system, voltage stability has become a major concern in planning and operating electric power system. The blackout problem has been associated with not only transient stability but also voltage stability.
Songkin, Myjessie
core  

Adaptive transient solution of nonuniform multiconductor transmission lines using wavelets [PDF]

, 2000
—This paper presents a highly adaptive algorithm for the transient simulation of nonuniform interconnects loaded with arbitrary nonlinear and dynamic terminations.
Grivet-Talocia, S.
core   +2 more sources

Utility of Computed Tomography Surveillance of Asymptomatic Infection in Children and Young Adults Before Allogeneic Hematopoietic Stem Cell Transplant

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Asymptomatic infection poses a significant risk for children undergoing hematopoietic stem cell transplantation (HSCT). Pre‐transplant surveillance computed tomography (CT) is commonly used to identify occult infection, though its diagnostic yield remains uncertain.
Tyler Obermark, Pradipta Debnath, Rama S. Ayyala, Lara A. Danziger‐Isakov, Jane Koo, Kasiani C. Myers, William R. Otto, Aki Tanimoto, Andrew T. Trout, Cara E. Morin   +9 more
wiley   +1 more source

Improvement of Transient Voltage Profile Using Power Control of the DFIG-Based Wind Farm Under Severe Voltage Dip Event

Iranian Journal of Electrical and Electronic Engineering, 2020
Improving transient voltage stability is one of the most important issues that must be provided by doubly fed induction generator (DFIG)-based wind farms (WFs) according to the grid code requirement.
Z. Rafiee, M. Rafiee, M. R. Aghamohammadi   +2 more
doaj