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Content Provider | IET Digital Library |
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Author | Jiang, Lingtong Chen, Qing Wang, Lei Zhao, Pu Zeng, Yu Huang, Wudi |
Abstract | The large shunt capacitances on both sides of VSC-HVDC transmission line will block and reflect the travelling waves when a fault occurs on DC cable lines. When a forward fault occurs, the protection will detect the arrival of forward and backward travelling wave simultaneously. While for a backward fault, the arrival time difference of the forward and backward travelling wave head is obvious. According to this characteristic, this paper proposed a novel VSC-HVDC directional pilot protection based on the propagation time difference of directional travelling wave and the stationary wavelet transform (SWT) is used to identify the initial travelling wave head. A two-terminal VSC-HVDC system is modelled in PSCAD/EMTDC, and various faults scenarios are simulated to verify the proposed method. The simulation results show that the proposed protection can identify internal faults from external faults quickly and reliably, and it is basically immune to fault resistance and fault distance, which has certain practical value. |
Starting Page | 2142 |
Ending Page | 2146 |
Page Count | 5 |
Volume Number | 2019 |
e-ISSN | 20513305 |
Issue Number | Issue 16, Mar (2019) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/conferences/cn-adc-2018 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8687 |
Journal | The Journal of Engineering |
Publisher | The Institution of Engineering and Technology |
Publisher Date | 2018-10-26 |
Access Restriction | Open |
Rights License | Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/) |
Subject Keyword | Arrival Time Difference Backward Fault D.C. Transmission DC Cable Line Directional Travelling Wave EMTDC External Fault Fault Diagnosis Fault Resistance Fault Scenario Forward Fault HVDC Power Converter HVDC Power Transmission Initial Travelling Wave Head Integral Transforms Internal Fault Power Converter Power Grid Power Supplies to Apparatus Power System Protection Power Transmission Cables Power Transmission Fault Power Transmission Line Power Transmission Protection Propagation Time Difference Protection Method PSCAD Travelling Wave Two-terminal VSC-HVDC System Voltage-source Converter VSC-HVDC Directional Pilot Protection Wavelet Transform |
Content Type | Text |
Resource Type | Article |
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