Abstract
The injection of negative-sequence current from Converter-based Resources (CBRs) during faults has been increasingly proposed and suggested in various international standards and grid codes such as the IEEE 2800 standard. As such injection changes the nature of the fault response of the CBRs, it can introduce uncertainties and risks to the existing AC protection. This paper presents comprehensive studies and analysis to evaluate the impact of Negative-Sequence Current Injection (NSCI) on distance protection. Realistic Hardware-in-the-Loop (HiL) tests are conducted using a commercially available distance relay, along with CBR models compliant with the grid code in Great Britain (without NSCI) and technical connection rule in Germany (with NSCI). The outcomes of this paper offer valuable insights to the system owners in different countries to understand the benefits, as well as potential issues, of the NSCI of CBRs from the protection perspective.
| Original language | English |
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| Number of pages | 6 |
| Publication status | Published - 10 Jan 2025 |
| Event | The 18th IET International Conference on Developments in Power System Protection - Hong Kong, Hong Kong, China Duration: 8 Jan 2025 → 11 Jan 2025 https://dpsp.theiet.org/dpsp-2025-international-conference-on-developments-in-power-system-protection |
Conference
| Conference | The 18th IET International Conference on Developments in Power System Protection |
|---|---|
| Abbreviated title | DPSP APAC 2025 |
| Country/Territory | China |
| City | Hong Kong |
| Period | 8/01/25 → 11/01/25 |
| Internet address |
Keywords
- negative-sequence current
- Converter-based Resources
- Negative-Sequence Current Injection
- distance protection