Results 41 to 50 of about 14,764,212 (352)

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

Assessment and management of frequency stability in low inertia renewable energy rich power grids

IET Generation, Transmission & Distribution
The integration of the renewable energy sources (RESs) into the power grid, drives a significant transformation in the conventional power generation landscape.
M. I. Saleem, S. Saha, T. K. Roy, Subarto Kumar Ghosh   +3 more
semanticscholar   +1 more source

An optical fibre-based frequency dissemination network for Australia

, 2011
An optical-fibre network is being planned for distribution of optical and microwave reference frequencies in Australia. This network would connect a number of research facilities and the National Measurement Institute (NMI), allowing long-range ...
Luiten, A., Orr, B., Wouters, M., Gray, M., He, Y., Shaddock, D., Hsu, M., Warrington, R., Aben, G., Baldwin, K.   +9 more
core   +1 more source

Unit commitment of power systems considering system inertia constraints and uncertainties

IET Renewable Power Generation
Large‐scale integration of renewable energy into the power grid results in a lack of system inertia, posing challenges to the optimal operation and scheduling of systems considering frequency stability.
Yuxin Weng, Guangchao Geng, Quanyuan Jiang   +2 more
doaj   +1 more source

Research on Pressure Compensation for the Rubidium Atomic Clock Working in Atmospheric Environment

Chinese Journal of Magnetic Resonance
Vapor cell rubidium atomic clock is widely used in the fields of satellite navigation and communication with advantages including small size, light weight, low power and maintenance cost.
LI Junyao, LI Chengkang, ZHAO Feng, WANG Chen, WANG Fang, KANG Songbai, WANG Pengfei, MEI Ganghua, MING Gang   +8 more
doaj   +1 more source

Optimal Energy Storage System-Based Virtual Inertia Placement: A Frequency Stability Point of View

IEEE Transactions on Power Systems, 2020
In this paper, the problem of optimal placement of virtual inertia is considered as a techno-economic problem from a frequency stability point of view.
H. Golpîra, A. Atarodi, Shiva Amini, A. R. Messina, B. Francois, H. Bevrani   +5 more
semanticscholar   +1 more source

Early Body Mass Index z‐Score Change and Resolution of Severe Malnutrition in Children With Sickle Cell Anemia in a Low‐Income Setting: A Prospective Single‐Arm Extension Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Children with sickle cell anemia (SCA) in low‐income settings are at risk of severe malnutrition, but optimal nutritional management has not been established. We evaluated an intensified ready‐to‐use therapeutic food (RUTF) regimen in children with persistent severe malnutrition after initial treatment and assessed whether early ...
Safiya Gambo, Shehu Umar Abdullahi, Hassan Adam Murtala, Halima Kabir, Khadija A. Shamsu, Sari A. Acra, Virginia A. Stallings, Mark Rodeghier, Michael R. DeBaun, Lauren J. Klein   +9 more
wiley   +1 more source

Neural Network-Based Coordinated Virtual Inertia Allocation Method for Multi-Region Distribution Systems

Applied Sciences
Virtual inertia is a measure of the capability of distributed sources and loads within power supply units to resist system frequency variations through additional control strategies applied to converters.
Heng Liu, Jingtao Zhao, Zhi Wu, Shu Zheng   +3 more
doaj   +1 more source

Developed Transfer Function Allows Hydro Generators to Enter the Full Range of Ancillary Services Market

Energies, 2022
As the number of available renewable energy sources has increased annually, there has been a corresponding rise in the levels of pollution created by traditional electricity generation, ultimately contributing to breaking down the stability of the ...
Paulius Cicėnas, Virginijus Radziukynas
doaj   +1 more source

Study on Frequency Stability Control Strategies for Microgrid Based on Hybrid Renewable Energy

Science and Technology for Energy Transition
The dynamic nature of renewable energy sources, such as wind and photovoltaic power generation, significantly impacts the frequency stability of microgrid systems due to their pronounced intermittency, inherent randomness, and limited output support ...
Zifan Gao
semanticscholar   +1 more source