TY - GEN
T1 - Unit transient based protection for high voltage wind power transmission lines
AU - Xia, Mingchao
AU - Lin, Yong
AU - Lo, Wai Chau Edward
PY - 2012/5/24
Y1 - 2012/5/24
N2 - Based on the wavelet transform results of the transient signals from all ends of the line, a unit protection for high voltage power transmission line is presented. The attenuation effects of high voltage transmission line and busbar capacitance to high-frequency current signals are analyzed. The Transient Current Content Ration(TCCR), Transient Voltage Content Ratio (TVCR) and Transient Voltage Singularity Ratio (TVSR) are deduced according to the analysis of the differences during high frequency voltage transients at each end of the transmission line when in-zone faulted and out-zone faulted. Protection criterion using TCCR and protection criterion using TVSR are proposed, and the principles of protection settings are given. The wavelet modulus maxima of transient signals are used to calculate TCCR and TVSR. Simulation experiments of different faults with EMTP are carried out to test and analyze the protection criteria. A 100kHz sampling rate is used in the simulation experiments. According to the simulation results, the protection criteria prove to be simple, reliable and good for whole line protection.
AB - Based on the wavelet transform results of the transient signals from all ends of the line, a unit protection for high voltage power transmission line is presented. The attenuation effects of high voltage transmission line and busbar capacitance to high-frequency current signals are analyzed. The Transient Current Content Ration(TCCR), Transient Voltage Content Ratio (TVCR) and Transient Voltage Singularity Ratio (TVSR) are deduced according to the analysis of the differences during high frequency voltage transients at each end of the transmission line when in-zone faulted and out-zone faulted. Protection criterion using TCCR and protection criterion using TVSR are proposed, and the principles of protection settings are given. The wavelet modulus maxima of transient signals are used to calculate TCCR and TVSR. Simulation experiments of different faults with EMTP are carried out to test and analyze the protection criteria. A 100kHz sampling rate is used in the simulation experiments. According to the simulation results, the protection criteria prove to be simple, reliable and good for whole line protection.
KW - current transient
KW - transient based protection
KW - voltage transient
KW - wavelet transform
UR - http://www.scopus.com/inward/record.url?scp=84862071251&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-27334-6-24
DO - 10.1007/978-3-642-27334-6-24
M3 - Conference article published in proceeding or book
SN - 9783642273339
T3 - Advances in Intelligent and Soft Computing
SP - 205
EP - 218
BT - Instrumentation, Measurement, Circuits and Systems
T2 - 2011 International Conference on Instrumentation, Measurement, Circuits and Systems, ICIMCS 2011
Y2 - 12 December 2011 through 13 December 2011
ER -