Hybrid, Multi-Megawatt HVDC Transformer Topology Comparison for Future Offshore Wind Farms
AbstractWith the wind industry moving further offshore, High Voltage Direct Current (HVDC) transmission is becoming increasingly popular. HVDC transformer substations are not optimized for the offshore industry though, increasing costs and reducing redundancy. A suggested medium frequency, modular hybrid HVDC transformer located within each wind turbine nacelle could mitigate these problems, but the overall design must be considered carefully to minimize losses. This paper’s contribution is a detailed analysis of the hybrid transformer, using practical design considerations including component library minimization. The configurations investigated include combinations of single phase H-Bridge and Modular Multilevel Converter topologies operating under minimum switching frequency control strategies. These were modelled in the MATLAB/Simulink environment. The impact of the minimum switching control strategy and converter topology on power transfer stability and overall efficiency is then investigated. It was found that the H-Bridge converter generated the lowest overall losses, but there was a trade off with power flow sensitivity due in part to the additional harmonics generated. View Full-Text
Scifeed alert for new publicationsNever miss any articles matching your research from any publisher
- Get alerts for new papers matching your research
- Find out the new papers from selected authors
- Updated daily for 49'000+ journals and 6000+ publishers
- Define your Scifeed now
Smailes, M.; Ng, C.; Mckeever, P.; Shek, J.; Theotokatos, G.; Abusara, M. Hybrid, Multi-Megawatt HVDC Transformer Topology Comparison for Future Offshore Wind Farms. Energies 2017, 10, 851.
Smailes M, Ng C, Mckeever P, Shek J, Theotokatos G, Abusara M. Hybrid, Multi-Megawatt HVDC Transformer Topology Comparison for Future Offshore Wind Farms. Energies. 2017; 10(7):851.Chicago/Turabian Style
Smailes, Michael; Ng, Chong; Mckeever, Paul; Shek, Jonathan; Theotokatos, Gerasimos; Abusara, Mohammad. 2017. "Hybrid, Multi-Megawatt HVDC Transformer Topology Comparison for Future Offshore Wind Farms." Energies 10, no. 7: 851.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.