Results 21 to 30 of about 5,882,681 (296)

Fast frequency response for effective frequency control in power systems with low inertia

The Journal of Engineering, 2019
The increasing penetration of renewable generation has led to the decrease of power systems’ overall inertia, which introduces significant challenges to frequency stability.
Qiteng Hong, Marcel Nedd, Seán Norris, Ibrahim Abdulhadi, Mazaher Karimi, Vladimir Terzija, Benjamin Marshall, Keith Bell, Campbell Booth   +8 more
doaj   +1 more source

Grid Impact of Frequency Regulation Provided by V2Gs Aggregated at HV, MV, and LV Level

IEEE Access, 2023
Vehicle-to-Grid chargers (V2Gs) are currently considered a key component for supporting future power systems in primary and especially secondary frequency regulation.
Marta Bernal-Sancho, Roberto Rocca, Gregorio Fernandez-Aznar, Maria Paz Comech, Noemi Galan-Hernandez   +4 more
doaj   +1 more source

Frequency Modulation Control of an FMCW LiDAR Using a Frequency-to-Voltage Converter

Sensors, 2023
An FMCW LiDAR (frequency-modulated continuous-wave light detection and ranging) is a sensor that can measure distance using optical interference frequency (fb).
Jubong Lee, Jinseo Hong, Kyihwan Park
doaj   +1 more source

Load frequency control using classical controllers

Arid Zone Journal of Engineering, Technology and Environment, 2022
This paper presents a solution to the problem of load frequency control of a two area power system using PI and PID controllers. In electric power systems, the load demand varies at different times of the day and these load variations lead to changes in frequency of the power system.
Isemin, U. I., Onah , A. J.
openaire   +2 more sources

Fast and Reliable Primary Frequency Reserves From Refrigerators with Decentralized Stochastic Control [PDF]

, 2016
Due to increasing shares of renewable energy sources, more frequency reserves are required to maintain power system stability. In this paper, we present a decentralized control scheme that allows a large aggregation of refrigerators to provide Primary ...
Andersson, Göran, Vrettos, Evangelos, Ziras, Charalampos   +2 more
core   +2 more sources

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

Why and When Are Evidence‐Based Interventions Adopted in Paediatric Supportive Care? A Qualitative Exploration of the Determinants of Photobiomodulation Implementation

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Oral mucositis is a common and debilitating side effect of childhood cancer and stem cell transplant treatments. It affects the quality of life of children and young people (CYP) and places a strain on services. Photobiomodulation is recommended for oral mucositis prevention in international guidance but is poorly implemented in UK ...
Claudia Heggie, Kara A. Gray‐Burrows, Peter F. Day, Bob Phillips, Carl A. Thompson   +4 more
wiley   +1 more source

Low-loss phase change materials-based reprogrammable non-volatile 1 × 2 switch on integrated metasurfaces

iScience
Summary: With their profound ability to manipulate electromagnetic waves, metasurfaces are at the forefront of a revolution in modern optics and photonics. Despite significant advancements, the quest for programmable and controllable metasurfaces remains
Muhammad Shemyal Nisar, Naeem Ullah, Shahid Iqbal, Sai-Wai Wong, Zia Ullah Khan, Xiaoqing Tian, Yibin Tian   +6 more
doaj   +1 more source

Control of Variable Speed Wind Turbines with Doubly Fed Asynchronous Generators for Stand-Alone Applications

Energies, 2017
This paper addresses the design and implementation of a novel control of a variable speed wind turbine with doubly fed induction generator for stand-alone applications.
Santiago Arnaltes, Jose Luis Rodriguez-Amenedo, Miguel E. Montilla-DJesus   +2 more
doaj   +1 more source

Improving the Power Quality of Island Microgrid With Voltage and Frequency Control Based on a Hybrid Genetic Algorithm and PSO

IEEE Access, 2022
An efficient power control technique for inverter-based distributed generation (DG) in an islanded microgrid is investigated in this work. The objective is to raise the caliber of the electricity pumped from network-connected DGs.
Masoud Dashtdar, Aymen Flah, Seyed Mohammad Sadegh Hosseinimoghadam, Ch Rami Reddy, Hossam Kotb, Kareem M. AboRas, Edson C. Bortoni   +6 more
doaj   +1 more source