Protection Strategies for Rotor Side Converter of DFIG-based Wind Turbine during Voltage Dips

被引：0

作者：

Salles, M. B. C. ^{[1
]}

Avila, R. R. ^{[1
]}

Grilo, A. P. ^{[2
]}

Filho, A. J. S. ^{[2
]}

Rahmann, C. ^{[3
]}

机构：

[1] Univ Sao Paulo, Polytech Sch, BR-09500900 Sao Paulo, Brazil

[2] Univ Fed ABC, CECS, Sao Paulo, Brazil

[3] Univ Chile, Dept Elect Engn, Santiago, Chile

来源：

2015 IEEE POWER & ENERGY SOCIETY GENERAL MEETING | 2015年

关键词：

crowbar; doubly fed induction generator; induction generator; power system stability; wind power;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Modern wind turbines operate with variable speed and most of them are based on doubly fed induction generators (DFIG), with a back-to-back power converter. During voltage dips, the stator terminals can cause overcurrents in the rotor windings, which could threaten the converter integrity. The use of crowbar systems is the most common technique to avoid this situation. The crowbar activation disables the control of the rotor side converter during a short period of time. Once the rotor side converter is blocked, the DFIG operates like a typical induction generator and thus consumes reactive power. In this paper, the performance of the well-known crowbar protection is compared with a current compensation strategy. Results show that the current compensation strategy can have positive effects on the terminal voltages during the fault without disconnection of the rotor side converter.

引用

页数：5

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