Traveling Wave Relations Applicable to Power-System Fault Locators

1951 ◽  
Vol 70 (2) ◽  
pp. 1671-1680 ◽  
Author(s):  
Laurel J. Lewis
Keyword(s):  
Power System ◽  
Traveling Wave

Distance Protection Application Based on Wavelet Transform and Traveling Wave Ranging

2012 ◽  
Vol 150 ◽  
pp. 40-44
Author(s):  
Peng Peng Kang ◽  
Xi Fang Zhu
Keyword(s):  
Wavelet Transform ◽  
Power System ◽  
Transmission Line ◽  
Software Design ◽  
Traveling Wave ◽  
Wave Theory ◽  
Distance Measurement ◽  
Distance Protection

This paper describes the wavelet transform theory, and traveling wave theory. When the power system transmission line fault occurs, the fault signal generated by sampling and analysis, and use a method of one-end fault distance measurement in transmission line. Finally the article gives the ranging devices’ hardware and software design.

scholarly journals A review of the protection for the multi-terminal VSC-HVDC grid

2019 ◽  
Vol 4 (1) ◽  
Author(s):  
Bin Li ◽  
Jiawei He ◽  
Ye Li ◽  
Botong Li
Keyword(s):  
Power System ◽  
Power Supply ◽  
Traveling Wave ◽  
Differential Protection ◽  
Protection Strategy ◽  
Current Differential Protection ◽  
The Future ◽  
Dc Line ◽  
Supply Reliability ◽  
Pilot Protection

AbstractThe multi-terminal VSC-HVDC grid is believed to be widely applied in the future power system. The dc line protection is the key technique for operation security and power supply reliability of the dc grid. In this paper, the single-ended protections, namely, the traveling-wave based protection and transient-variable based protection, as well as the pilot protections, mainly including the directional pilot protection and current differential protection, are discussed in detail. With the analyzed protections, the effective main and back-up protection strategy can be configured for the dc line in multi-terminal VSC-HVDC grid.

scholarly journals Improving the reliability of combined overhead and cable power lines by organizing smart autoreclosing

2019 ◽  
Vol 139 ◽  
pp. 01062
Author(s):  
Pavel Pelevin ◽  
Anton Loskutov ◽  
Timur Sharafeev
Keyword(s):  
Power System ◽  
Pattern Classification ◽  
Traveling Waves ◽  
Traveling Wave ◽  
Wave Pattern ◽  
Power Lines ◽  
Power System Protection ◽  
System Protection ◽  
Special Procedure

The application of combined overhead and cable power lines (OCPLs) of 110 kV voltage rate and higher call for new features for power system protection and automation devices. One of the most urgent is the problem of autoreclosing (AR) of OCPL. One or another solution to this problem significantly affects the reliability and efficiency of the OCPL operating. In many countries, both non-selective AR and selective AR are used. A method of selective AR of OCPL based on traveling waves is proposed, which increases the reliability of OCPL protection and automation. The method uses a special procedure of traveling wave pattern classification for faulted section identification.

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