Entire process accurate evaluation abandoned wind for high proportion wind power connected to large power grid

2019 ◽  
Author(s):  
Ge Weichun ◽  
Zhou Guiping ◽  
Luo Huanhuan ◽  
Li Tie ◽  
Wang Shunjiang ◽  
...  
Keyword(s):  
Wind Power ◽  
Power Grid ◽  
Large Power ◽  
Accurate Evaluation ◽  
Entire Process

scholarly journals Analysis of Various ESDD of Contaminant Insulator Flashover Acoustic Signal by Wavelet Packet

2016 ◽  
Vol 16 (6) ◽  
pp. 220-231
Author(s):  
Hong Kun Wang ◽  
Shou Xiang Wang ◽  
Jing Nie
Keyword(s):  
High Voltage ◽  
Acoustic Signal ◽  
Wavelet Packet ◽  
Power Grid ◽  
Acoustic Signals ◽  
Salt Deposit ◽  
Power Network ◽  
Large Power ◽  
Insulator Flashover

Abstract With the formation of China’s large power grid, the security of the network is particularly important. The contaminant flashover of insulators has a serious impact on the operation safety of a high voltage power network. In this paper, the acoustic signals’ characteristics of the contaminant insulators flashover are analyzed, and, as a result, the correlation between the acoustic signal and the contaminant insulator flashover is established. To experiment with contaminant insulator for three different Equivalent Salt Deposit Densities (ESDD), acoustic signals were collected separately. Then, the contaminant insulators’ acoustic signals of flashover were analyzed by wavelet packet. The characteristics of the signals were obtained, and they can be judged for contaminant flashover warning.

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