Results 41 to 50 of about 26,369 (176)

Jason-1/Jason-2 metocean comparisons and monitoring [PDF]

, 2010
The initial tandem phase of the Jason-2 mission is important for the calibration of the entire altimetric system, not just the records of sea surface height.
Quartly, Graham D., Graham D. Quartly
core   +1 more source

Coordinated Control of a Wind Turbine and Battery Storage System in Providing Fast-Frequency Regulation and Extending the Cycle Life of Battery

Frontiers in Energy Research, 2022
Fast-frequency regulation (FFR) is becoming a key measure to enhance the frequency stability of power systems as the penetration of renewables and power electronics continues to grow and the system inertia declines.
Yuan Tang, Conghuan Yang, Zuanhong Yan, Ying Xue, Yi He   +4 more
doaj   +1 more source

Torque Limit-Based Inertial Control of a DFIG for Rapid Frequency Stabilization

Frontiers in Energy Research, 2021
With the increasing penetration of renewable energy generation, the frequency stability of a power grid can be significantly threatened. A doubly-fed induction generator (DFIG) participates in the frequency support of a power grid by releasing kinetic ...
Yien Xu, Hongmei Wang
doaj   +1 more source

Nadir faktör eksikliği tanılı 36 olgunun değerlendirilmesi [PDF]

, 2021
Introduction: Rare factor deficiencies are predominantly autosomal recessively inherited disorders with a frequency of approximately 1: 500000 to 1: 2000000 in the general population. They account for 3-5% of all inherited coagulation disorders.
Söker, Murat, Üzel, Veysiye Hülya, Yılmaz, Kamil, Öncel, Kahraman, Tekin, Suat   +4 more
core   +1 more source

Analysis of Dual-Frequency Ocean Backscatter Measurements at Ku- and Ka-Bands Using Near-Nadir Incidence GPM Radar Data [PDF]

, 2016
Global colocalized ocean surface measurements using the Global Precipitation Measurement near-nadir dual-frequency Ku- and Ka-band microwave measurements are analyzed and compared.
Rascle, Nicolas, Chapron, Bertrand, Mouche, Alexis, Vandemark, Douglas, Nouguier, Frederic   +4 more
core   +1 more source

Real Time Frequency Response Assessment Using Regression [PDF]

, 2020
Synchronous power system inertia is declining, due to the increasing penetration of inverter-interfaced generation. This entails faster and greater frequency decrease after generation outages.
Robert Eriksson, Zografos, Dimitrios,, Ghandari, Mehrdad,, Eriksson, R., Dimitrios Zografos, Mehrdad Ghandhari   +5 more
core   +1 more source

Wavelength Cut-Off Error of Spectral Density from MTF3 of SWIM Instrument Onboard CFOSAT: An Investigation from Buoy Data

Remote Sensing
The Surface Waves Investigation and Monitoring instrument (SWIM) provides the directional wave spectrum within the wavelength range of 23–500 m, corresponding to a frequency range of 0.056–0.26 Hz in deep water.
Yuexin Luo, Ying Xu, Hao Qin, Haoyu Jiang   +3 more
doaj   +1 more source

Evaluation of inertia resource for securing nadir frequency in HVDC interconnected system with high penetration of RES

Energy Reports, 2023
For power systems to manage a variety of renewable energy sources while securing system stability and reliability, more resources are required. However, due to the interaction of the frequency response resources, determining the appropriate resources for
Jaeyeop Jung, Jeonghoo Park, Hwanik Lee, Byongjun Lee   +3 more
doaj   +1 more source

The impact of increased renewable energy penetration and reduced inertia on the frequency nadir in a multi-area interconnected network based on the peninsula Malaysia national grid

Global Energy Interconnection
The increased adoption of renewable energy sources (RES) has left the power system grid with ever more decreasing inertia. The inertia plays a crucial part in mitigating frequency changes in the power system.
Ousama M.T. Ajami, Maadh S.J. Alkhusaibi, Rodney H.G. Tan, Farah Adilah Jamaludin, Mithulananthan Nadarajah   +4 more
doaj   +1 more source

Frequency prediction of a post-disturbance power system using a hybrid ARIMA and DBN model

Frontiers in Energy Research
The online prediction of power system dynamic frequency helps to guide the choice of control measures quickly and accurately after a disturbance, and this then ensures the reliable and stable operations of a power system.
Huimin Wang, Zhaojun Steven Li, Jun Pan, Wenhua Chen   +3 more
doaj   +1 more source