Optimal Design of Crowbar Resistance for DFIG Converter During Low Voltage Ride-through
As wind farms being coupled with power grid in large-scale, the new grid code is drafted to require the condition that wind turbines must have low voltage ride-through (LVRT) capability. To realize low voltage ride-through of doubly-fed induction generator (DFIG), Crowbar resistances in parallel are...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Control and Information Technology
2012-01-01
|
| Series: | Kongzhi Yu Xinxi Jishu |
| Subjects: | |
| Online Access: | http://ctet.csrzic.com/thesisDetails#10.13889/j.issn.2095-3631.2012.01.012 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | As wind farms being coupled with power grid in large-scale, the new grid code is drafted to require the condition that wind turbines must have low voltage ride-through (LVRT) capability. To realize low voltage ride-through of doubly-fed induction generator (DFIG), Crowbar resistances in parallel are usually equipped to the rotor side to limit the over-current during the voltage dipping. Based on the currents mathematic models of the DFIG stator and rotor, the impact of Crowbar resistance on the DFIG operation performance is analyzed, and the optimized design strategy of the Crowbar resistance is implemented. Finally, the simulation model based on Matlab/Simulink is set up for 1.65 MW DFIG wind turbines, which validates the correctness and effectiveness of the proposed design technology. |
|---|---|
| ISSN: | 2096-5427 |