| 适合于变速恒频双馈感应发电机的Crowbar对比分析 |
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| 引用本文： | 李建林,赵栋利,李亚西,许洪华. 适合于变速恒频双馈感应发电机的Crowbar对比分析[J]. 可再生能源, 2006, 0(5): 57-60 |
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| 作者姓名： | 李建林 赵栋利 李亚西 许洪华 |
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| 作者单位： | 中国科学院,电工研究所,北京,100087 |
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| 摘 要： | 电网运行新规则要求变速恒频双馈感应发电机在电网电压跌落的情况下仍与电网相连接，为做到这一点需要安装低压旁路系统。综合分析了低压带来的负面影响以及低压旁路的具体实现方法；对比了多种Crowbar电路各自的优缺点；最后介绍了变速恒频双馈发电机相关保护控制策略和新型旁路系统。
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| 关 键 词： | 变速恒频 双馈感应发电机 电压跌落 低压旁路 Crowbar电路 |
| 文章编号： | 1671-5292（2006）05-0057-04 |
| 收稿时间： | 2005-11-03 |
| 修稿时间： | 2005-11-03 |
Analyze of crowbar circuit for variable speed constant frequency doubly fed induction generator |
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| LI Jian-lin,ZHAO Dong-li,LI Ya-xi,XU Hong-hua. Analyze of crowbar circuit for variable speed constant frequency doubly fed induction generator[J]. Renewable Energy(China), 2006, 0(5): 57-60 |
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| Authors: | LI Jian-lin ZHAO Dong-li LI Ya-xi XU Hong-hua |
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| Abstract: | The suitability of variable speed constant frequency wind turbine with doubly-fed induction generator(DFIG) for new grid operator rules is analyzed.New grid rules require that the wind turbines remain connected during voltage dip in the grid.A survey of the problems associated with voltage dip and methods for ride through operation of this type of system are presented.At the same time their merits and drawbacks of different crowbar circuits are analyzed.Finally,the future trends and emphases in the protection schemes of DFIG are given in order to push forward the study on DFIG in our country. |
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| Keywords: | variable speed constant frequency(VSCF) doubly-fed induction generator(DFIG) voltage dip low voltage ride through Crowbar circuit |
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