Summary
In recent years, voltage source converter based high voltage direct current (VSC-HVDC) have emerged as a preferred solution for meeting large-scale power transmission demands and enabling grid interconnection. For the end-to-end VSC-HVDC system adopting the overhead line (OHL) solution, the DC OHL, which is exposed outdoors and has a long distance, is the part with the highest failure rate in VSC-HVDC system. An effective and cost-saving solution to achieve DC OHL fault ride through (FRT) is necessary, where hybrid modular multi-level converter (MMC) solution and the AC circuit breaker (ACCB) are widely used in engineering projects.
Read more Read lessThis paper presents a generic bipolar ±500kV/3GW configuration of VSC-HVDC. The DC
OHL FRT mechanism and processes of both ACCB solution and hybrid MMC solution are investigated. Performance comparison between ACCB solution and hybrid MMC solution is provided based on hardware-in-the-loop (HIL) test. Finally, considering the technical performance and cost, comparisons between two solutions are conducted.
Additional informations
| Publication type | Session Materials |
|---|---|
| Reference | B4_11599_2026 |
| Publication year | |
| Publisher | CIGRE |
| Country | China, People's Republic of |
| Study committees | |
| File size | 3 MB |
| Price for non member | 30 € |
| Price for member | 30 € |
Authors
MA Xiuda - NR Electric Co., Ltd.; ZHAN Changjiang - NR Electric Co., Ltd.; LU Yu - NR Electric Co., Ltd.; JIANG Chongxue - NR Electric Co., Ltd.; WANG Nannan - NR Electric Co., Ltd.
Keywords
Bipolar end-to-end VSC-HVDC, DC overhead line, fault ride through, full-bridge sub-module, half-bridge sub-module, hard-ware-in-the-loop
