Results 71 to 80 of about 3,505,439 (294)

Decentralized Primary Frequency Control in Power Networks

, 2014
We augment existing generator-side primary frequency control with load-side control that are local, ubiquitous, and continuous. The mechanisms on both the generator and the load sides are decentralized in that their control decisions are functions of locally measurable frequency deviations.
Zhao, Changhong, Low, Steven
openaire   +2 more sources

Wind Turbines Emulating Inertia and Supporting Primary Frequency Control

IEEE Transactions on Power Systems, 2006
The increasing penetration of variable-speed wind turbines in the electricity grid will result in a reduction of the number of connected conventional power plants. This will require changes in the way the grid frequency is controlled. In this letter, a method is proposed to let variable-speed wind turbines emulate inertia and support primary frequency ...
Morren, J. (author), de Haan, S.W.H. (author), Kling, W.L. (author), Ferreira, J.A. (author)   +3 more
openaire   +3 more sources

Patient‐Level Barriers and Facilitators to Inpatient Physical Therapy in Adolescents and Young Adults With a Hematological Malignancy: A Qualitative Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Despite their increased risk for functional impairment resulting from cancer and its treatments, few adolescents and young adults (AYAs) with a hematological malignancy receive the recommended or therapeutic dose of exercise per week during inpatient hospitalizations.
Jennifer A. Kelleher, Jennifer L. Bernstein, Katia M. Crisler, Julia K. Herriott, Kimberly L. Klages, Robin E. Norris, Mariann L. Strenk, Sarah E. Bills, Meghan E. McGrady   +8 more
wiley   +1 more source

Performance enhancement and optimization of primary frequency regulation of coal‐fired units under boundary conditions

Energy Science & Engineering
Under the dual‐carbon goal, due to the long‐term operation of thermal power units under wide load and frequent fluctuating load after heat supply transformation, the dynamic process of subcritical units is modeled, and a frequency modulation optimization
Jingqiu Kang, Xiaofeng Chen, Zhenyong Yang, Lei Liu, Mo You, Yuzheng Zhao, Boyang Liang, Junhong Hao, Feng Hong   +8 more
doaj   +1 more source

Geographically Coordinated Primary Frequency Control Technical Report

, 2017
Primary Frequency Control (PFC) is a fast acting mechanism used to ensure high-quality power for the grid that is becoming an increasingly attractive option for load participation. Due to speed requirement and other considerations, it is often desirable to have distributed control laws.
Comden, Joshua, Le, Tan N., Zhao, Yue, Choi, Bong Jun, Liu, Zhenhua   +4 more
openaire   +2 more sources

Application of a LiFePO4 Battery Energy Storage System to Primary Frequency Control: Simulations and Experimental Results

Energies, 2016
This paper presents an experimental application of LiFePO4 battery energy storage systems (BESSs) to primary frequency control, currently being performed by Terna, the Italian transmission system operator (TSO).
Fabio Massimo Gatta, Alberto Geri, Regina Lamedica, Stefano Lauria, Marco Maccioni, Francesco Palone, Massimo Rebolini, Alessandro Ruvio   +7 more
doaj   +1 more source

Application of Battery Energy Storage Systems for Primary Frequency Control in Power Systems with High Renewable Energy Penetration

Energies, 2021
In power systems, high renewable energy penetration generally results in conventional synchronous generators being displaced. Hence, the power system inertia reduces, thus causing a larger frequency deviation when an imbalance between load and generation
Md Ruhul Amin, Michael Negnevitsky, Evan Franklin, Kazi Saiful Alam, Seyed Behzad Naderi   +4 more
doaj   +1 more source

Understanding Pound-Drever-Hall locking using voltage controlled radio-frequency oscillators: An undergraduate experiment

, 2011
We have developed a senior undergraduate experiment that illustrates frequency stabilization techniques using radio-frequency electronics. The primary objective is to frequency stabilize a voltage controlled oscillator to a cavity resonance at 800 MHz ...
Arfken G., Bechtell G., Beringer R., C. E. Liekhus-Schmaltz, Fox R. W., Ginzton E., Grover F., J. D. D. Martin, Pozar D., Terman F.   +9 more
core   +1 more source

Efficacy and safety of eslicarbazepine acetate monotherapy in patients converting from carbamazepine. [PDF]

, 2018
OBJECTIVE: To evaluate the influence of prior use of carbamazepine (CBZ) and other antiepileptic drugs (AEDs) with a putatively similar mechanism of action (inhibition of voltage-gated sodium channels; VGSCs) on seizure outcomes and tolerability when ...
Abou-Khalil, Benbadis, Bonifacio, Chung, Commission on Classification and Terminology of the International League against Epilepsy (ILAE), Fisher, French, Hebeisen, Jacobson, Sperling, Sperling, Vazquez   +11 more
core   +2 more sources

Developmental Disorders in Children Recently Diagnosed With Cancer

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Neurocognitive deficits in adult survivors of childhood cancer are well established, but less is known about developmental disorders (DD) arising shortly after cancer diagnosis. Using 2016–2019 linked Ohio cancer registry and Medicaid data, we compared DD among 324 children with cancer and 606,913 cancer‐free controls.
Jamie Shoag, Long Vu, Ritika Miryala, Jeffrey M. Albert, Molly McVoy, Siran M. Koroukian   +5 more
wiley   +1 more source