Translated Title
Research onearlydetection for short-circuitfaultinhigh-voltagetransmission line
Translated Abstract
High-voltage fast transform switch is applied to improve the reliability of the powersupply and power quality. However, most of the existing fault detection technologies need several milliseconds to detect short-circuit fault.It’s a bit longer for fast transform switch. In thispaper, wavelet transform is applied to high-voltage transform line on the early detection,being characterizedwith the fourth dimensiondetailcomponent of wavelet transform.The method is verified on Matlab/Simulinkplatform.It can separate short-circuit fault from overvoltage and inrush current caused by no-load switching, load switching and reactive power compensation.Thesimulation result showsthe wavelet transform can identify the fault within 0.2ms. Combining wavelet transformearly detectiontechnology with high-voltage fast transform switch willcontribute to a stable and reliable powersystem.
Translated Keyword
early detection
high-voltage fast transform switch
overvoltage and inrush current
short-circuit fault
wavelet transform
Access Number
WF:perioarticaljdq201612008
