A thorough comparison of the transient behaviours of two state-of-the-art converters suitable for HVDC transmission is presented. The Alternate Arm and Mixed-Cell Modular Multilevel Converter topologies both have DC fault blocking capability and are selected for the comparison. Converter performance is evaluated and compared under various transient conditions including charging sequence, unbalanced operation, and DC fault recovery. The study is conducted using high-fidelity converter simulation models, integrating detailed controllers that reflect real-scale projects. The main findings of the study assist in the selection of the most suitable converter, given specific performance specifications such as capacitor voltage ripple, cell capacitor requirements, and response during transient operation.
|Title of host publication||Proceedings of the The 9th IET International Conference on Power Electronics, Machines and Drives|
|Subtitle of host publication||PEMD 2018|
|Place of Publication||Piscataway, N.J.|
|Publication status||Published - 19 Apr 2018|
|Event||The 9th International Conference on Power Electronics, Machines and Drives - Liverpool, United Kingdom|
Duration: 17 Apr 2018 → 19 Apr 2018
Conference number: 9th
|Conference||The 9th International Conference on Power Electronics, Machines and Drives|
|Abbreviated title||PEMD 2018|
|Period||17/04/18 → 19/04/18|
- mixed cell converter
- DC fault blocking
Vozikis, D., Rault, P., Holliday, D., & Finney, S. (2018). Fault blocking converters for HVDC transmission: a transient behaviour comparison. In Proceedings of the The 9th IET International Conference on Power Electronics, Machines and Drives: PEMD 2018 Piscataway, N.J.: IEEE.