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| Content Provider | IET Digital Library |
|---|---|
| Author | Luo, Yongjie Yi, Pu Xiaofu, Xiong Jiang, Wang Yonghui, Song |
| Abstract | The DC fault protection is one of the main issues in multi-terminal voltage source converter based high-voltage direct current (VSC–MTDC) transmission systems. In this study, a DC short-circuit fault ride-through method for full-bridge modular multi-level converter (FB-MMC) based MTDC systems is proposed. First, the model of the FB-MMC topology is analysed. Then, the principle of fault current clearing in full-bridge sub-module (FB-SM) is introduced. The converter protection control strategy and the system protection scheme are proposed, benefitting from the capability of quick fault current elimination with the valves blocked using the FB-MMC topology. With this method, the MTDC system could restart quickly after clearance of DC fault without cutting off the AC grid. The proposed protection strategy is demonstrated using the simulation model in PSCAD/EMTDC. Simulation results verify the feasibility and effectiveness of the strategy. |
| Starting Page | 3175 |
| Ending Page | 3179 |
| Page Count | 5 |
| Volume Number | 2019 |
| e-ISSN | 20513305 |
| Issue Number | Issue 16, Mar (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/conferences/cn-adc-2018 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8423 |
| Journal | The Journal of Engineering |
| Publisher | The Institution of Engineering and Technology |
| Publisher Date | 2018-10-29 |
| Access Restriction | Open |
| Rights License | Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/) |
| Subject Keyword | Converter Protection Control Strategy D.C. Transmission DC Fault Protection DC Short-circuit Fault Ride-through DC Short-circuit Fault Ride-through Method Fault Current Fault Current Clearing FB-MMC Topology FB-SM Full-bridge MMC-based MTDC System Full-bridge Modular Multilevel Converter Based MTDC System Full-bridge Sub-module High-voltage Direct Current High-voltage Direct Current Transmission System HVDC Power Converter HVDC Power Transmission Multiterminal Voltage Source Converter Power Grid Power System Protection Power Transmission Fault Power Transmission Protection Protection Strategy Quick Fault Current Elimination Short-circuit Current Simulation Model System Protection Scheme Voltage-source Converter VSC–MTDC |
| Content Type | Text |
| Resource Type | Article |
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