Open AccessResearch of transmission delay test method in smart substations
Author(s) -
Xinyue Gong,
Da Zhou,
Yun Teng,
Qiangsheng Bu,
Lei Gao
Publication year - 2017
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2017.0482
Subject(s) - correctness , transmission (telecommunications) , computer science , sampling (signal processing) , waveform , real time computing , measure (data warehouse) , point (geometry) , electronic engineering , algorithm , telecommunications , engineering , data mining , mathematics , radar , geometry , detector
For the sampling circuit of intelligent substation, more and more data conversion and information transmission links lead to an increase in sampling delay time, which is not conducive to the rapid and reliable transmission of information. This study analyses the mechanism of delay in the sampling loop of intelligent substation, and proposes an improved measurement method based on the detection delay of wavelet mutation point. This method can accurately measure the delay of the entire period in the sampling cycle in excess of one waveform cycle. Also, the correctness of the method is verified by simulation and field experiment.