Design of the inner AC circuit of a DC hub for the interconnection of multiple HVDC lines
| Autor: | Pavol Bauer, Michalis Poikilidis, E. Kontos |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Interconnection
Computer science business.industry 020209 energy 020208 electrical & electronic engineering Automatic frequency control Electrical engineering Topology (electrical circuits) 02 engineering and technology Converters Inductance 0202 electrical engineering electronic engineering information engineering High-voltage direct current business Voltage |
| Zdroj: | IECON |
| DOI: | 10.1109/iecon.2019.8926855 |
| Popis: | As the number of High Voltage Direct Current (HVDC) installations is increasing, there is a growing need for interconnection to create more efficient grids. To tackle the main challenges in HVDC grids, a multiport DC-DC converter, often referred to as DC hub, is considered a solution. This paper provides a thorough review of different DC hub topologies for the interconnection of multiple HVDC lines operating at different voltage levels. A design based on Modular Multilevel Converters (MMC) is chosen due to their inherent advantages and its control operation is described. A DC hub was modelled in Matlab/Simulink and was tested in a case study including the interconnection of three DC lines in symmetric monopolar configuration, operating at different voltage levels. Three DC hub topologies are proposed for the interconnection of the HVDC lines depending on their voltage levels and the operational and protection requirements of the multiterminal HVDC grid. |
| Databáze: | OpenAIRE |
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