Abstract
Medium voltage DC (MVDC) systems have the advantages of fewer conversion stages and lower power losses in the MVDC collector for offshore wind energy transmission and can avoid the need of costly offshore platforms, leading to significant reduction of the capital cost. In this paper, DC fault protection of MVDC systems is assessed considering both parallel and series connection arrangements of wind turbine converters. Typical DC fault protection strategies considering selective, non-selective, and partially selective fault clearing will be assessed and their impact on fault currents and voltages and the AC onshore and MVDC offshore network will be studied. The use of different DC protection devices including fast acting DC circuit breakers (DCCBs) and DC switches/disconnectors (DCSWs), and their locations on protection and system recovery will be highlighted.
Original language | English |
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Pages (from-to) | 1504-1510 |
Number of pages | 7 |
Journal | IET Conference Proceedings |
Volume | 2024 |
Issue number | 6 |
DOIs | |
Publication status | Published - 25 Jul 2024 |
Event | 20th International Conference on AC and DC Power Transmission 2024 (ACDC 2024) - Shanghai, China Duration: 12 Jul 2024 → 15 Jul 2024 |