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| Content Provider | IET Digital Library |
|---|---|
| Author | Wang, Yanting Zhang, Baohui Cheng, Shaojie |
| Abstract | A hybrid high-voltage direct current (HVDC) system comprises a line commutated converter (LCC) at the rectifier side and a voltage source converter (VSC) at the inverter side, combining advantages of both LCC and VSC systems. However, the asymmetric converters at both ends of line constrain the direct application of line protections used for conventional HVDC systems. This study proposes a polarity-based pilot transmission line protection for hybrid HVDC systems. By digitising the current and voltage fault components, their polarity characteristics are extracted to identify the transmission line fault, which may eliminate the influence of the fault component magnitude differences caused by different converter structures and control strategies. Simulation results show that the proposed protection is valid and feasible and is capable of distinguishing fault with large transition resistance. |
| Starting Page | 820 |
| Ending Page | 825 |
| Page Count | 6 |
| 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.2018.8360 |
| Journal | The Journal of Engineering |
| Publisher | The Institution of Engineering and Technology |
| Publisher Date | 2018-10-22 |
| Access Restriction | Open |
| Rights License | Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/) |
| Subject Keyword | Asymmetric Converter Current Fault Component D.C. Transmission Fault Component Magnitude Differences High-voltage Direct Current HVDC Power Converter HVDC Power Transmission Hybrid HVDC System Invertors LCC Line Commutated Converter Pilot Transmission Line Protection Polarity Characteristic Power Electronics Power Supply Power System Protection Power Transmission Fault Power Transmission Line Power Transmission Protection Rectifying Circuit Supervisory Circuit Transmission Line Fault Voltage Fault Component Voltage Source Converter Voltage-source Converter VSC System |
| Content Type | Text |
| Resource Type | Article |
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