Results 11 to 20 of about 22,345,845 (193)
Fault severity diagnosis of rolling element bearings based on kurtogram and envelope analysis [PDF]
, 2014 Faults in rolling element bearing are among the main causes of breakdown in rotating machines. Vibration is an effective technique for machine condition monitoring.
Gu, Fengshou +6 more
core +7 more sources
A robust fault detection method of rolling bearings using modulation signal bispectrum analysis [PDF]
, 2015 Envelope analysis is a widely used method for bearing fault detection. To obtain high detection accuracy, it is critical to select an optimal narrowband for envelope demodulation.
Gu, Fengshou +4 more
core +4 more sources
Energies, 2021 The power requirements of grids have risen as artificial intelligence and electric vehicle technologies have been used. Thus, the installation of distributed generators (DGs) has become an essential factor to streamline power grids. The objective of this
Beopsoo Kim +3 more
doaj +1 more source
Sensors, 2023 Modern fault ride-through (FRT) standards in many countries require distributed generators to remain connected for a specified period during the fault by providing reactive current, to support voltage and prevent a massive renewable outage.
Evangelos E. Pompodakis +2 more
doaj +1 more source
Research on Fault Analysis and Improvement of Plunger Assembly of Landing Gear Buffer Strut
Hangkong gongcheng jinzhan, 2022 During the repair of landing gear buffer strut,it is found that the nut thread of plunger assembly is occluded and deformed.In order to study the cause of the fault,the fault tree of thread occlusion deformation fault is constructed according to the ...
TENG Weijie, LIU Cheng, WANG Jun
doaj +1 more source
Analysis of energy dissipation in resistive superconducting fault-current limiters for optimal power system performance [PDF]
, 2011 Fault levels in electrical distribution systems are rising due to the increasing presence of distributed generation, and this rising trend is expected to continue in the future.
Burt, Graeme +4 more
core +4 more sources
Fault Diagnosis of Rolling Bearings using Multifractal Detrended Fluctuation Analysis and Mahalanobis Distance Criterion [PDF]
, 2012 Vibrations of a defective rolling bearing often exhibit nonstationary and nonlinear characteristics which are submerged in strong noise and interference components.
Gu, Fengshou +3 more
core +3 more sources
Key Technology of Automatic Analysis of Fault Area Wave Recording of Power System
Zhongguo dianli, 2022 In this paper, an automatic analysis method of power system fault recording is proposed and developed. It is an important part of relay protection real-time evaluation system based on wide area information.
Yuanbo YE +5 more
doaj +1 more source
Frontiers in Energy Research, 2021 With the enlarging scale of doubly-fed induction generators (DFIGs) connected to power systems, it is important to analyze the influence of a short-circuit current to system relay protection.
Jun Yin
doaj +1 more source
Sensors, 2023 The transient characteristics of wind farms in groups are quite different; in addition, there is a strong coupling between the wind farms and the grid, and these factors make the fault analysis of the grid with wind farm groups complicated.
Jun Yin, Weichen Qian, Xiaobo Huang
doaj +1 more source