Fault Diagnosis of Commutation Failure Using Wavelet Transform and Wavelet Neutral Network in HVDC Transmission System

2021 ◽  
pp. 1-1
Author(s):  
Cuicui LIU ◽  
Fang Zhuo ◽  
Feng Wang
Keyword(s):  
Wavelet Transform ◽  
Fault Diagnosis ◽  
Transmission System ◽  
Neutral Network ◽  
Hvdc Transmission ◽  
Commutation Failure

Commutation failure suppression strategy of HVDC transmission system based on deep double Q-Network

2021 ◽  
Author(s):  
Haidong Huang ◽  
Xindong Li ◽  
Xiaofan Hou ◽  
Daojun Zha ◽  
Wei Dai ◽  
...  
Keyword(s):  
Transmission System ◽  
Hvdc Transmission ◽  
Commutation Failure ◽  
Suppression Strategy

scholarly journals Rapid Fault Diagnosis of a Back-to-Back MMC-HVDC Transmission System under AC Line Fault

Energies ◽  
2018 ◽  
Vol 11 (6) ◽  
pp. 1534 ◽  
Author(s):  
Qing Huai ◽  
Kaipei Liu ◽  
Liang Qin ◽  
Jian Le ◽  
Kun Wang ◽  
...  
Keyword(s):  
Fault Diagnosis ◽  
Transmission System ◽  
Hvdc Transmission

Fault Diagnosis Platform Development Based on Wavelet Transform for Wind Turbines Transmission System

2013 ◽  
Vol 333-335 ◽  
pp. 632-635
Author(s):  
Zhao Ran Hou ◽  
Wu Wang
Keyword(s):  
Wavelet Transform ◽  
Fault Diagnosis ◽  
Wind Turbine ◽  
Wind Turbines ◽  
Complex Structure ◽  
Vibration Signal ◽  
Transmission System ◽  
Measurement Unit ◽  
Diagnosis System ◽  
Fault Features

Wind turbine transmission system with complex structure and abundant fault features, also the fault features are variable, three typical fault and failure forms of rolling bearings, shafts and gears in wind turbine drive train were analyzed, also the failure mechanism and corresponding vibration signal characteristics was proposed. In the wind turbines transmission system, the vibration signal can reflect most of the fault information, as there was non-stationary signals in the vibration signals and wavelet transform for feature extraction was proposed. The whole framework of the fault diagnosis platform was constructed, the lower machine based on the measurement unit and the PC based host computer diagnosis system was designed, the diagnosis system was powerful and easily cut, which was strong help to the fault character extraction, also it was practical and available for wind turbine fault diagnosis.

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