Results 21 to 30 of about 3,899 (265)

An Improved Harmonics Mitigation Scheme for a Modular Multilevel Converter [PDF]

IEEE Access, 2019
Modular Multilevel Converters (MMC) are gaining importance because of their flexible structure, re-configurable property, and simplicity of operation. The operation of MMC at a low-switching frequency (LSF) helps in enhancing the performance of the converter. This paper proposes an improved harmonics mitigation scheme for a Multilevel DC-Link Inverter (
A. Rakesh Kumar, Mahajan Sagar Bhaskar, Umashankar Subramaniam, Dhafer J. Almakhles, Sanjeevikumar Padmanaban, Jens Bo Holm-Nielsen   +5 more
openaire   +3 more sources

Design and Application Research of Active Power Filter-Based Harmonic Mitigation System for Large-Scale Offshore Wind Farms

发电技术
ObjectivesWind energy is one of the primary energy sources for China to achieve its “dual carbon” goals. Although offshore wind power along the eastern coast of China has great development potential, there is a problem of harmonic disturbance during its ...
DU Weian, FU Wangan, HUANG Libo, XU Jiajun, TANG Haoran   +4 more
doaj   +1 more source

Optimal Harmonic Mitigation in Distribution Systems with Inverter Based Distributed Generation

Applied Sciences, 2021
In recent years, with the widespread use of non-linear loads power electronic devices associated with the penetration of various renewable energy sources, the distribution system is highly affected by harmonic distortion caused by these sources. Moreover,
Ahmed S. Abbas, Ragab A. El-Sehiemy, Adel Abou El-Ela, Eman Salah Ali, Karar Mahmoud, Matti Lehtonen, Mohamed M. F. Darwish   +6 more
doaj   +1 more source

Evidence‐Based Clinical Practice Guidelines for the Management of Pediatric Febrile Neutropenia: Resource‐Sensitive Recommendations for the Asian Continent

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Febrile neutropenia (FN) is a frequent and serious complication in children receiving cancer therapy. Standardizing FN management across Asia is challenging due to variable healthcare infrastructure, diagnostic capacity, and infection patterns; however, it could improve resource use and patient outcomes.
Joliza Patricia Cañeba, Shweta Bansal, Tea Reljic, Allyne Montecillo‐Aguelo, Hamidah Alias, Farrah Amaranto, Maria Stella Aquino‐Calingasan, Bambang Ardianto, Eggi Arguni, Sally Blair, Thi Tam Dang, Maria Beatriz Gepte, Samanmalee Gunasekara, Andini Handayani, Miriam Kimpo, Catherine G. Lam, Nawachai Lertvivatpong, Sergio Licona, Ana Loseo, Ratha Mlis, Vivian Moreno Berrio, Nguyen Hoai Anh, Anna Lisa Ong‐Lim, Ha Thu Pham, Krishna Sagar Sharma, Bun Sereyleak, Sally Jane G. Velasco‐Aro, Su Yadana, Ambuj Kumar, Sheena Mukkada   +29 more
wiley   +1 more source

MITIGATION OF HARMONICS IN INVERTER

IOSR Journal of Engineering, 2012
In recent years power electronic converters are widely used in industrial as well as domestic applications for the control of power flow for automation and energy efficiency.Most of the time these converters draw harmonic current and reactive power from AC source and causes the power quality problems. Recently multilevel power conversion technology has
openaire   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
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

Mitigation of harmonics in a 6 kV and 650 kW motor

Electrical Engineering, 2023
Motors that work with high voltage and consume a lot of power, specifically those of 6 kV and 650 kW, generate harmonics of voltage and current harmful to the electro-energy system, causing problems in its correct operation. In this study, the quality of the electrical energy of a motor having those characteristics is analyzed by measuring voltage ...
Corrales Barrios, Luis B., Fernández Blanco, Juan C., Núñez Álvarez, José R., Martínez García, Herminio, Hernández González, Félix H.   +4 more
openaire   +4 more sources

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

FEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta, Hari Baskar Balasubramanian, Amir Pasokh, Marietta Zille   +3 more
wiley   +1 more source

Linear quadratic regulator-based coordinated optimization for harmonic compensation in multifunctional grid-connected inverters

International Journal of Electrical Power & Energy Systems
The increasing penetration of distributed energy resources (DERs) and electric vehicles (EVs) introduces widespread power electronic devices that significantly challenge harmonic mitigation in distribution systems.
Xianghua Peng, Jingyuan Yin, Jiancheng Yu, Jinzhao Song, Keyan Liu, Zhao Li, Tongzhen Wei   +6 more
doaj   +1 more source