Abstract
Integrating permanent magnet synchronous generator (PMSG) wind turbines with DC microgrids have attracted a great attention due to the inherent merits of DC systems. However, under the fault conditions, the excessive energy during fault will be reflected on PMSG rotating parts causing overspeed, mechanical stresses, and fast aging. Also, large fault currents will force generator-side converter to disconnect making it not complied with grid codes. Accordingly, this paper aims to apply superconducting fault current limiter (SFCL) to enhance the performance of PMSG wind turbines with DC microgrids under the fault conditions. PSCAD/EMTDC software is used to build the system under study that includes PMSG, controlled AC/DC converter, SFCL, and DC bus. The behavior of SFCL in enhancing the DC output of the converter is first studied. Then, the impact of using SFCL on the speed, torque, and output current of PMSG is investigated and discussed. Finally, the suitable current limiting resistance is adopted considering DC output as well as PMSG speed.
| Original language | English |
|---|---|
| Article number | 5603105 |
| Journal | IEEE Transactions on Applied Superconductivity |
| Volume | 28 |
| Issue number | 4 |
| Early online date | 30 Mar 2018 |
| DOIs | |
| Publication status | Published - 1 Jun 2018 |
Keywords
- current limiting resistance
- DC microgrids
- Fault currents
- Generators
- Limiting
- Microgrids
- PMSG wind turbines
- Resistance
- superconducting fault current limiter
- Torque
- Wind turbines
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering