Results 81 to 90 of about 1,548,936 (214)

An Interleaved Segmented Spectrum Analysis: A Measurement Technique for System Frequency Response and Fault Detection. [PDF]

Sensors (Basel), 2022
Roman-Loera A, Veerabathini A, Macias-Diaz JE, Rizo-Diaz FJ.   +3 more
europepmc   +1 more source

Disproportionate Frequency Representation in the Inferior Colliculus of Doppler-Compensating Greater Horseshoe Bats. Evidence for an Acoustic Fovea [PDF]

, 1979
1. The inferior colliculus of 8 Greater Horseshoe bats (Rhinolophus ferrumequinun) was systematically sampled with electrode penetrations covering the entire volume of the nucleus. The best frequencies and intensity thresholds for pure tones (Fig.
Schuller, Gerd, Pollak, George D.
core   +1 more source

System frequency response model and droop coefficient setting considering renewable energy participation in frequency regulation

Frontiers in Energy Research
The highly uncertain and uncontrollable power output of renewable energy sources (RES), when integrated into power systems at high penetration levels, reduces system inertia and introduces uncertain changes in system structure, parameters, and frequency ...
Yuyan Song, Yongjie Zhang, Shuai Zhang, Fang Liu, Yunche Su, Yang Liu   +5 more
doaj   +1 more source

Analysis of Doppler frequency shift response mechanism based on OFDM system

MATEC Web of Conferences, 2018
OFDM system is widely used in mobile communication because of its high spectral efficiency and strong anti-multipath capability. However, in high dynamic scenarios, the Doppler shift between the transmitter and the receiver destroys the orthogonality ...
Li Ke, Sun Zhiguo, Ning Xiaoyan, Diao Ming   +3 more
doaj   +1 more source

Regional Frequency Measurement Point Selection and System Partitioning Method for High-Renewable-Energy-Penetration Power System [PDF]

The integration of high proportions of renewable energy into power systems to replace traditional synchronous generators has led to continuous weakening of the system inertia support and primary frequency regulation resources.
Zhenfei Yao, Yin Yao, Bo Xu, Dongdong Li, Fan Yang   +4 more
core   +1 more source

Forced response prediction for industrial gas turbine blades [PDF]

, 2006
A highly efficient aeromechanical forced response system is developed for predicting resonant forced vibration of turbomachinery blades with the capabilities of fully 3-D non-linear unsteady aerodynamics, 3-D finite element modal analysis and blade root ...
Moffatt, Stuart
core  

Optimal Control Strategy and Evaluation Framework for Frequency Response of Combined Wind–Storage Systems

Technologies
The increasing integration of wind turbines into the power grid has reduced the system frequency stability, necessitating the integration of energy storage systems in primary frequency regulation.
Jie Hao, Huiping Zheng, Xueting Cheng, Yuxiang Li, Liming Bo, Juan Wei   +5 more
doaj   +1 more source

Security Optimization Method for Unit Commitment in New Power Systems Considering Load Equivalent Inertia [PDF]

Dianli jianshe
[Objective] With the advancements in the construction of new power systems， renewable energy units are gradually replacing traditional thermal power units.
SONG Jiawen, WANG Qi, WANG Yalun, XIA Yuxiang, TANG Yi
doaj   +1 more source

Frequency-Power Control of VSWTG for Improved Frequency Regulation [PDF]

, 2023
With increasing wind energy penetration and impending grid codes, it is important to enable wind-based power plants to provide sensitive frequency response in grids that may experience irregular frequency fluctuations with noise induced.
Asma Aziz (13059384), Amanullah Oo (13054650)   +1 more
core  

Frequency Control Method Utilising the Potential of Recovery Process of the ON/OFF Flexible Loads

IET Energy Systems Integration
ON/OFF flexible loads (FLs), which account for a large proportion of demand side resources, have been proved to be effective in the frequency control of the power systems.
Yu‐Qing Bao, Ying Chen, Zi‐Li Yao
doaj   +1 more source