Comparative Analysis of Transformer-Energizing and Fault- Caused Voltage Dips on the Dynamic Behavior of DFIG-Based Wind Turbines

被引:0
|
作者
de Oliveira, Roger Alves [1 ]
Chen, Cheng [1 ]
Bollen, Math H. J. [1 ]
Leborgne, Roberto Chouhy [2 ]
机构
[1] Lulea Univ Technol, Elect Power Engn Grp, Skelleftea, Sweden
[2] Univ Fed Rio Grande do Sul, Porto Alegre, RS, Brazil
关键词
Power Quality; Voltage Dips; DFIG; Wind Turbine; Transformer Energizing; LVRT; FRT; FED INDUCTION GENERATOR;
D O I
暂无
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
This work compares the response of DFIG-based wind turbines under voltage dips caused by transformer-energizing and caused by an asymmetrical fault. Voltage dips with similar retained voltage and duration and the two distinct causes are applied to an equivalent model of a DFIG-based wind park. The dips are different in terms of harmonic content and unbalance during the recovery after the dip. Due to its slow recovery, the transformer-energizing dip results in longer fluctuation in torque, longer overshoot in DC-link voltage, and longer recovery to the pre-dip active power. Also, due to its harmonic content, the harmonic distortion in the rotor and stator current is higher for the transformer-energizing dip. As the impact is different between the transformer-energizing dip and the fault-caused dip, it is recommended to consider both events separately during low-voltage-ride-through studies.
引用
收藏
页码:589 / 593
页数:5
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