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Content Provider | IET Digital Library |
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Author | Huang, Kai Xiang, Wang Xu, Lie Wang, Yi |
Abstract | A hybrid AC/DC hub is proposed in this study, where a modular multilevel converter and a line-commutated converter are paralleled at the AC side to integrate onshore wind power, and connected in series at the DC sides to interconnect two DC networks with different voltages. The hybrid AC/DC hub facilitates wind power integration and DC network interconnection with reduced converter ratings and power losses when compared with the ‘conventional’ approach using DC–DC converters. To investigate the design requirement and performance of the hybrid AC/DC hub, power flow analysis is assessed to evaluate the converter power rating requirement. To ride through DC faults at either side of the interconnected DC networks, a coordinated DC fault protection for the hybrid AC/DC hub is proposed and studied. Simulation results in PSCAD/EMTDC verify the feasibility and effectiveness of the proposed control and protection of the hybrid AC/DC hub under power flow change, AC and DC fault conditions. |
Starting Page | 1738 |
Ending Page | 1745 |
Page Count | 8 |
ISSN | 17521416 |
Volume Number | 14 |
e-ISSN | 17521424 |
Issue Number | Issue 10, Jul (2020) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-rpg/14/10 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-rpg.2019.1481 |
Journal | IET Renewable Power Generation |
Publisher Date | 2020-04-14 |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | AC Fault Condition AC-DC Power Converter D.C. Transmission DC Fault Condition DC Network Interconnection DC–DC Converter HVDC Power Transmission Hybrid AC-DC Hub Interconnected DC Network Line-commutated Converter Modular Multilevel Converter Offshore DC Network Offshore Installations Onshore DC Network Onshore Wind Power Power Electronics Power Flow Analysis Power Flow Change Power Grid Power Supply Power System Economics Power System Interconnection Power System Managemen Power System Operation PSCAD-EMTDC Reliability Supervisory Circuit Wind Power Integration Wind Power Plant |
Content Type | Text |
Resource Type | Article |
Subject | Renewable Energy, Sustainability and the Environment |
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