Single terminal coordination-protection scheme for hybrid three-terminal DC line based on station terminal current characteristics

2022 ◽  
Vol 138 ◽  
pp. 107905
Author(s):  
Hongchun Shu ◽  
Min Ren ◽  
Jieshan Shan ◽  
Xincui Tian
Keyword(s):  
Protection Scheme ◽  
Dc Line ◽  
Current Characteristics

Novel transient current-based protection scheme for DC line faults in UHVDC system

2017 ◽  
Author(s):  
Yayu Yang ◽  
Nengling Tai ◽  
Chunju Fan ◽  
Xiaodong Zheng ◽  
Jian Liu ◽  
...  
Keyword(s):  
Transient Current ◽  
Protection Scheme ◽  
Dc Line

A Wavelet Based Directional Algorithm for UHVDC Line Protection

2015 ◽  
Vol 713-715 ◽  
pp. 950-953
Author(s):  
Ya Jie Li ◽  
Jian Cheng Tan ◽  
Shu Xian Zhang
Keyword(s):  
High Frequency ◽  
High Voltage Direct Current ◽  
Protection Scheme ◽  
High Impedance ◽  
Internal Fault ◽  
Current Transmission ◽  
Dc Line ◽  
Simulation Results ◽  
High Impedance Faults ◽  
Transmission Line Protection

When fault distance is greater than a certain value, attenuation of high frequency fault signal over the line is greater than what the DC line boundary is subject to. To sensitively detect a fault and improve the reliability of UHVDC (Ultra High Voltage Direct Current) transmission line protection, a new protection scheme based on wavelet based direction element is proposed, where directional element and attenuation of high frequency energy are used to identify an internal fault. Extensive simulation results show that the proposed protection scheme is able to sensitively detect high impedance faults, identify the faulty pole.

A DC Line Protection Scheme for MMC-Based DC Grids Based on AC/DC Transient Information

2020 ◽  
pp. 1-1
Author(s):  
Yangyang He ◽  
Xiaodong Zheng ◽  
Tai Nengling ◽  
Jin Wang ◽  
Muhammad HAROON Nadeem ◽  
...  
Keyword(s):  
Protection Scheme ◽  
Dc Line ◽  
Transient Information

A Pilot DC Line Protection Scheme for Multi-Terminal HVDC Grid

2019 ◽  
Author(s):  
Qiang Huang ◽  
Guibin Zou ◽  
Bin Xu ◽  
Jun Li ◽  
Shuo Zhang
Keyword(s):  
Protection Scheme ◽  
Dc Line
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