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Enhanced Voltage Drop Control by VSC–HVDC Systems for Improving Wind Farm Fault Ridethrough Capability.
- Source :
- IEEE Transactions on Power Delivery; Feb2014, Vol. 29 Issue 1, p378-385, 8p
- Publication Year :
- 2014
-
Abstract
- This paper presents a new control approach for enhancing the fault ridethrough capability of wind farms connected to the grid through a voltage-source-converter-based high-voltage dc transmission line. A controlled voltage drop in the wind farm collector grid is initiated upon the occurrence of fault in the high-voltage grid in order to achieve fast power reduction. In the process, a dc voltage of defined magnitude and duration is injected by the sending-end converter together with the voltage reduction to suppress the dc component of the short-circuit current arising from the voltage reduction. As a result, the electrical and mechanical stress on the wind turbines, especially on the DFIG-based units and their converters, are mitigated. Using a test network, the improvement in the fault ridethrough capability of the system that can be achieved by employing the proposed method has been demonstrated. [ABSTRACT FROM PUBLISHER]
Details
- Language :
- English
- ISSN :
- 08858977
- Volume :
- 29
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Power Delivery
- Publication Type :
- Academic Journal
- Accession number :
- 94016884
- Full Text :
- https://doi.org/10.1109/TPWRD.2013.2285236