Results 31 to 40 of about 3,044,924 (291)

High-impedance faulty feeder detection for cross-country faults in distribution networks based on zero-sequence active power regulation

International Journal of Electrical Power & Energy Systems
The weak characteristics of high-impedance faults and the complex attributes of cross-country faults make faulty feeder detection of cross-country high-impedance faults difficult in medium-voltage networks. This paper deduces the zero-sequence equivalent
Yuting Lan, Kun Yu, Xiangjun Zeng, Rong Cai, Qingbo Deng, Chenyu Wu, Shigeng He, Shijie Xu, Youcheng Jia   +8 more
doaj   +1 more source

A Single-Phase-to-Ground Fault Detection Method Based on the Ratio Fluctuation Coefficient of the Zero-Sequence Current and Voltage Differential in a Distribution Network

IEEE Access, 2023
Because the traditional zero-sequence overcurrent protection method is not effective in detecting single-phase-to-ground faults (SPGF) in a low-resistance grounded system (LRGS), this paper analyzes the fault characteristics of a 10-kV LRGS in detail ...
Huamin Liang, Haifeng Li, Gang Wang
doaj   +1 more source

Simplified Cluster Voltage Balancing Control Based on Zero-Sequence Voltage Injection for Star-Connected Cascaded H-Bridge STATCOM

CSEE Journal of Power and Energy Systems
The cluster DC voltage balancing control adopting zero-sequence voltage injection is appropriate for the star-connected cascaded H-bridge STATCOM because no zero-sequence currents are generated in the three-phase three-wire system.
Kai Hu, Guoliang Zhao, Daorong Lu, Zhengang Lu, Nianwen Xiang, Shulai Wang, Jintian Lin   +6 more
doaj   +1 more source

Assessment of asymmetry parameters for zero sequence component in the medium voltage network [PDF]

, 2019
W pracy wyprowadzono parametryczne zależności pozwalające szacować wielkości charakteryzujące asymetrię napięcia, prądów, mocy i admitancji dla podstawowej i wyższych harmonicznych składowych symetrycznych zerowych.
Marciniak, Lubomir
core   +1 more source

Branch Voltage Balancing Control Strategy Based on the Transfer Power Model by Zero-Sequence Circulating Current for the Hexverter

IEEE Access, 2022
This paper proposes a novel branch voltage-balancing control strategy for a hexagonal converter (Hexverter). First, the state-space model based on the double-dq transformation is analyzed in-depth along with the necessary basic mathematical derivation ...
Yang Yi, Gang Yang, Chong Qian, Yaojie Gui   +3 more
doaj   +1 more source

Pediatric Idiopathic Multicentric Castleman Disease Is Often Severe But Responsive to Siltuximab

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Idiopathic multicentric Castleman disease (iMCD) is a potentially fatal immunologic disorder marked by widespread lymphadenopathy and inflammation. Siltuximab, an interleukin‐6 (IL‐6) inhibitor, is the only FDA‐approved treatment for adult patients with iMCD.
Bridget Austin, Sheila K. Pierson, Kelley C. Dacus, Mateo Sarmiento Bustamante, Saishravan Shyamsundar, Larissa Borys, Kayla McHugh, Abiola Irvine, Yoojin Jo, Adam Bagg, Mary Jo Lechowicz, Daisy Alapat, Amy Chadburn, Megan S. Lim, Gordan Srkalovic, Frits van Rhee, David C. Fajgenbaum, Joshua D. Brandstadter   +17 more
wiley   +1 more source

A Novel Fault-Tolerant Control of Modular Multilevel Converter under Sub-Module Faults based on Phase Disposition PWM

Energies, 2018
Each arm of modular multilevel converter (MMC) consists of a large number of sub-module (SM) units. However, it also increases the probability of SM failure during the long-term system operation. Focusing on the fault-tolerant operation issue for the MMC
Yin Jingyuan, Wen Wu, Wei Tongzhen, Wu Xuezhi, Huo Qunhai   +4 more
doaj   +1 more source

Effect of DFPP on Ferroptosis in Peripheral Blood CD14+ Monocytes of Hyperlipidemic Patients Involving the ACSL4/LPCAT3/ALOX5 Pathway

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Hyperlipidemia is a major risk factor for atherosclerotic cardiovascular disease (ASCVD). Although statins are the cornerstone of lipid‐lowering therapy, their use may be limited in some patients by adverse effects. This study evaluated the possible impact of non‐drug treatment using double‐filtration plasmapheresis (DFPP) on CD14+
Yun Cheng, Lan Li, Qingmei Yang, Meipeng Wu   +3 more
wiley   +1 more source

Design and analysis strategies for robust microbiome ageing research

FEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik, İsmail Güderer, Yi Wang, Tayyaba Alvi, Prasoon Pandey, Handan Melike Dönertaş   +5 more
wiley   +1 more source

Mathematical description of the method for ungrounded AC systems to determine the network insulation

IET Generation, Transmission & Distribution, 2022
For the safety of humans and animals in the vicinity of single‐phase earth faults in ungrounded AC systems, the development of methods for monitoring the condition of insulation and protection against electric shocks is an important issue.
Iskander Kurabayev, Ivan Suvorov, Arman Utegulov, Galina Tatkeyeva   +3 more
doaj   +1 more source