Results 41 to 50 of about 1,525,477 (300)

A Novel Control Architecture for Hybrid Power Plants to Provide Coordinated Frequency Reserves

Energies, 2019
The inertia reduction suffered by worldwide power grids, along with the upcoming necessity of providing frequency regulation with renewable sources, motivates the present work.
Daniel Vázquez Pombo, Florin Iov, Daniel-Ioan Stroe   +2 more
doaj   +1 more source

A PLL-Free Grid-Forming Control With Decoupled Functionalities for High-Power Transmission System Applications

IEEE Access, 2020
This paper proposes a grid-forming control strategy with a generic implementation approach to meet the transmission system requirements asking for the massive integration of power electronic devices into the power systems.
Taoufik Qoria, Ebrahim Rokrok, Antoine Bruyere, Bruno Francois, Xavier Guillaud   +4 more
doaj   +1 more source

Novel Coordinated Control Strategy of BESS and PMSG-WTG for Fast Frequency Response

Applied Sciences, 2021
An increase in inverter-based resources (IBRs) can lower the inertia of a power system, which may adversely affect the power system by causing changes such as a frequency nadir reduction or an increased initial rate of change of frequency (RoCoF).
Hyunwook Kim, Junghun Lee, Jaehyeong Lee, Gilsoo Jang   +3 more
doaj   +1 more source

Fast tuneable InGaAsP DBR laser using quantum-confined stark-effect-induced refractive index change [PDF]

, 2007
We report a monolithically integrated InGaAsP DBR ridge waveguide laser that uses the quantum-confined Stark effect (QCSE) to achieve fast tuning response.
Cannard, P, Gwilliam, R, Pantouvaki, M, Renaud, CC, Robertson, MJ, Seeds, AJ   +5 more
core   +1 more source

Fast-response frequency-to-analog converter [PDF]

, 1967
Frequency-to-analog converter has a fast response time and a low ripple. The circuit uses a frequency-to-pulse converter which provides two pulse trains, both at the same frequency as that of the input signal, but with a 10 microsecond difference between
Hagihara, F. S.
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Learning for Advanced Motion Control

, 2020
Iterative Learning Control (ILC) can achieve perfect tracking performance for mechatronic systems. The aim of this paper is to present an ILC design tutorial for industrial mechatronic systems.
Oomen, Tom
core   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

Frequency Support for the Decarbonization of an Isolated Low-Inertia System With the Integration of RES and BESS

IEEE Access
This paper proposes a technical methodology to decarbonize an isolated low-inertia system with the integration of a Renewable Energy Source (RES) and a Battery Energy Storage System (BESS).
Andre G. P. Alves, Joao M. T. do Amaral, Giulia J. da Silva, Carolina C. M. de Souza, Pedro H. B. Cambruzzi, Gabriel Gentil, Emanuel L. van Emmerik, Annelys M. Schetinger, Hugo Bozelli, Robson F. S. Dias   +9 more
doaj   +1 more source

Fast frequency response provision from commercial demand response, from scheduling to stability in power systems

IET Renewable Power Generation, 2022
Reduced numbers of online conventional generators, due to increasing shares of renewable energy sources, are increasing the requirement for a fast frequency response capability from reserve providers when a large infeed/outfeed trips.
M. Saeed Misaghian, Ciara O'Dwyer, Damian Flynn   +2 more
doaj   +1 more source