Results 31 to 40 of about 2,963,400 (288)

Evaluation of New Grid Codes for Converter-Based DERs From the Perspective of AC Microgrid Protection

IEEE Access, 2022
The ever-increasing penetration levels of converter-based distributed energy resources (DERs) in medium and low voltage (MV/LV) distribution networks necessitate new and revised standards or connection requirements of generating units. These standardized
Aushiq Ali Memon, Mazaher Karimi, Kimmo Kauhaniemi   +2 more
doaj   +1 more source

Impact of Apparent Reactance Injected by TCSR on Distance Relay in Presence Phase to Earth Fault

Advances in Electrical and Electronic Engineering, 2013
This research paper presents the impact study of apparent reactance injected by series Flexible AC Transmission System (FACTS) i.e. Thyristor Controlled Series Reactor (TCSR) on the measured impedance of a 400 kV single electrical transmission line in ...
Mohamed Zellagui, Abdelaziz Chaghi
doaj   +1 more source

Extended Bandwidth Method on Symmetrical Operational Transconductance Amplifier and Filter Application [PDF]

, 2021
In this paper, a method for extending the bandwidth of a symmetrical operational transconductance amplifier (OTA) circuit is proposed. Resistive compensation technique is applied to all current mirrors of the symmetrical OTA circuit.
M. Konal, Konal, Mustafa, F. Kacar, KAÇAR, Fırat   +3 more
core   +2 more sources

Rigorous Mathematical Steps for Sensitivity Analysis of High Impedance Ground Fault Detection in Power Distribution Systems

Cogent Engineering, 2020
A literature survey indicated that high impedance fault (HIF) detection methods employ simulation techniques using very low voltage signals generated using software such as PSCAD, and MATLAB, among others.
P. Velmurugan, A. B. Chattopadhayay
doaj   +1 more source

Fault-Tolerant Controller Applied to a Wind System Using a Doubly Fed Induction Generator

Wind
Wind systems are sustainable and economical options for producing electrical energy. These systems efficiently manage the power flow by maximizing wind power and consuming reactive power from the grid.
Onofre Morfín, Diego Delgado, Alan Campos, Miguel Murillo, Jesús I. Hernández, Pedro Esquivel   +5 more
doaj   +1 more source

Synchronizing a synchronverter to an unbalanced power grid using sequence component decomposition

Nonlinear Engineering, 2022
The synchronverter is a device used in some microgrids to perform self-synchronization and represent the behavior of a synchronous machine. However, the original control has been proposed for balanced networks, which is not present in all distribution ...
Quintero-Duran Michell J., Candelo-Becerra John E., Posada Johnny   +2 more
doaj   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen, Calogero Virgone, Antje Redlich, Michael Abele, Ricardo Lopez‐Almaraz, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Maja Mazic Cesen, Andrea Ferrari, Malgorzata A. Krawczyk, Yves Reguerre, Dominik T. Schneider, Ines B. Brecht, Charlotte Rigaud, Bilgehan Yalcin, Rainer Claus, Christian Vokuhl, Constantin Lapa, Jörg Fuchs, Segolene Hescot, Thomas Walter, Julien Hadoux, Daniel Orbach   +23 more
wiley   +1 more source

Stability Analysis of Bipolar LVDC Grid

International Transactions on Electrical Engineering and Computer Science, 2022
The study and regulation of bipolar DC structures covered by asymmetrical action, the DC symmetric part approach is implemented. This approach is an expansion of the standard principle of symmetrical components in three phase AC-controlled networks.
T. Raghu, D. Rajesh Reddy
doaj   +1 more source

Solid Pseudopapillary Neoplasm of the Pancreas in Children and Adolescents: Expert Recommendations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Solid pseudopapillary neoplasm of the pancreas (SPN) is a rare low‐grade malignant exocrine pancreatic tumor, mostly discovered during the second decade of life in females, with a very good prognosis, provided microscopically complete surgical excision is achieved.
Sabine Irtan, Michael Abele, Calogero Virgone, Michaela Kuhlen, Ricardo Lopez‐Almarez, Tal Ben‐Ami, Ewa Bien, Maja Cesen, Malgorzata A. Krawczyk, Andrea Ferrari, Gianni Bisogno, Yves Reguerre, Dominik T. Schneider, Louise Galmiche, Jorg Fuchs, Sarah Braungart, Bilgehan Yalcin, Ines B. Brecht, Daniel Orbach   +18 more
wiley   +1 more source

Expanding the Scope: Modified Fortescue Theory for Frequency Unbalance Resolution in Control Strategies

Mathematics
To analyze unbalanced electrical systems, the mathematical technique “symmetrical components method” developed by Charles LeGeyt Fortescue in the early 20th century has been very successful in this field.
Karim Mansouri, Brahim Metoui, Cristian Nichita, Amr Yousef, Ezzeddine Touti   +4 more
doaj   +1 more source