Grid integration of large DFIG-based wind farms using VSC transmission

被引:311
作者
Xu, Lie [1 ]
Yao, Liangzhong
Sasse, Christian
机构
[1] Queens Univ Belfast, Sch Elect Elect Engn & Comp Sci, Belfast BT9 5AH, Antrim, North Ireland
[2] AREVA T&D Technol Ctr, Stafford ST17 4LX, England
关键词
converter; doubly fed induction generator; fault ride through; frequency modulation; high voltage dc transmission (HVDC); voltage source converter (VSC) transmission; wind farm; HVDC; CONVERTERS; POWER;
D O I
10.1109/TPWRS.2007.901306
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This paper describes the use of voltage source converter (VSC)-based HVDC transmission system. (VSC transmission) technology for connecting large doubly fed induction generator (DFIG)-based wind farms over long distance. The operation principles of the proposed system are described, and new control strategies for normal and grid fault conditions are proposed. To obtain smooth operation, the wind farm side VSC (WFVSC) is controlled as an infinite voltage source that automatically absorbs power generated by the wind farm and maintains a stable local ac network. Fault ride through of the system during grid ac faults is achieved by ensuring automatic power balancing through frequency modulation using WFVSC and frequency control using DFIG. PSCAD/EMTDC simulations are presented to demonstrate robust performance during wind speed and power variations and to validate the fault ride through capability of the proposed system.
引用
收藏
页码:976 / 984
页数:9
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