| 不对称故障下双馈感应发电机转子电压分析 |
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| 引用本文： | 王 苏,崔 杨,冯东东.不对称故障下双馈感应发电机转子电压分析[J].电测与仪表,2014,51(13). |
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| 作者姓名： | 王 苏 崔 杨 冯东东 |
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| 作者单位： | 东北电力大学电气工程学院;东方电气风电工程技术有限公司; |
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| 基金项目： | 国家自然科学基金资助项目(51207018);吉林省科技发展计划资助项目(20130522174JH) |
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| 摘 要： | 针对不对称故障引起的电压跌落,求解得出三种不对称故障期间转子感应电动势峰值,结合对转子侧变流器控制能力的分析揭示了转子侧过流的根本原因。以转子侧变流器的最大控制电压为准则,推导出三种不对称故障的低电压穿越域。采用PSCAD搭建带有撬棒保护Crowbar的双馈风电机组暂态模型,仿真结果验证了所提出的低电压穿越域的正确性。
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| 关 键 词： | 双馈感应发电机 低电压穿越 撬棒保护 不对称故障 |
| 收稿时间： | 2013/12/16 0:00:00 |
| 修稿时间： | 2013/12/16 0:00:00 |
Low-voltage ride-through area analysis of doubly fed induction generator duringasymmetric faults |
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| WANG Su,CUI Yang and fengdongdong.Low-voltage ride-through area analysis of doubly fed induction generator duringasymmetric faults[J].Electrical Measurement & Instrumentation,2014,51(13). |
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| Authors: | WANG Su CUI Yang and fengdongdong |
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| Abstract: | According to the voltage dip caused by asymmetric fault, the peak of rotor voltage during the three asymmetric faults is calculated. The root cause of the rotor over current has been revealed combined with the analysis of the control ability of the rotor side converter. On the basis of the maximum control voltage of the rotor side converter, the low voltage ride through area of different asymmetric fault is deduced. The transient model of doubly fed induction generator with crowbar circuit has been built by PSCAD. The low voltage ride through area has been proved to be correct by the simulation results. |
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| Keywords: | doubly fed induction low voltage ride through crowbar protection asymmetric fault |
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