| 基于Crowbar保护的双馈感应发电机暂态特性与参数设计 |
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| 引用本文： | 熊威,邹旭东,黄清军,梁宗泽,陈鉴庆,康勇.基于Crowbar保护的双馈感应发电机暂态特性与参数设计[J].电力系统自动化,2015,39(11):117-125. |
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| 作者姓名： | 熊威 邹旭东 黄清军 梁宗泽 陈鉴庆 康勇 |
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| 作者单位： | 强电磁工程与新技术国家重点实验室 华中科技大学,湖北省武汉市,430074 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)（2012CB215100）资助项目;国家自然科学基金资助项目（51477064）；光宝电力电子技术科研基金资助项目（2013-04） |
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| 摘 要： | 双馈风力发电系统中,Crowbar(撬棒)仍是实现低电压穿越的常用方案之一,传统的分析方法忽略了定、转子磁链间的耦合,会带来较大的分析误差并遗漏一些暂态特性。从双馈感应发电机的数学模型出发,通过分析端口电压发生对称跌落、投入Crowbar后双馈感应发电机的暂态过程,推导出了定子磁链、定子电流、转子电流的解析表达式,并在表达式的基础上分析了各暂态量的幅值和变化规律等特性。在MATLAB/Simulink中建立了双馈感应发电机的仿真模型,结果证明了表达式的准确性。从复杂的数学表达式中抽离出Crowbar阻值与暂态特性的关系,分析了不同的Crowbar阻值对于故障期间系统的功率、电磁转矩的影响,并结合转子电流峰值计算及直流母线电压钳位效应的限制,给出了一种Crowbar电阻取值方案,该方案将有助于实际工程中选取合适的Crowbar参数。
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| 关 键 词： | 风力发电 双馈感应发电机 低电压穿越 撬棒 短路电流 故障分析 |
| 收稿时间： | 7/9/2014 12:00:00 AM |
| 修稿时间： | 2014/12/10 0:00:00 |
Transient Analysis and Crowbar Design of Doubly-fed Induction Generator with Crowbar Protection Under Grid Voltage Dips |
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| XIONG Wei,ZOU Xudong,HUANG Qingjun,LIANG Zongze,CHEN Jianqing and KANG Yong.Transient Analysis and Crowbar Design of Doubly-fed Induction Generator with Crowbar Protection Under Grid Voltage Dips[J].Automation of Electric Power Systems,2015,39(11):117-125. |
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| Authors: | XIONG Wei ZOU Xudong HUANG Qingjun LIANG Zongze CHEN Jianqing and KANG Yong |
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| Affiliation: | State Key Laboratory of Advanced Electromagnetic Engineering and Technology, (Huazhong University of Science and Technology), Wuhan 430074, China,State Key Laboratory of Advanced Electromagnetic Engineering and Technology, (Huazhong University of Science and Technology), Wuhan 430074, China,State Key Laboratory of Advanced Electromagnetic Engineering and Technology, (Huazhong University of Science and Technology), Wuhan 430074, China,State Key Laboratory of Advanced Electromagnetic Engineering and Technology, (Huazhong University of Science and Technology), Wuhan 430074, China,State Key Laboratory of Advanced Electromagnetic Engineering and Technology, (Huazhong University of Science and Technology), Wuhan 430074, China and State Key Laboratory of Advanced Electromagnetic Engineering and Technology, (Huazhong University of Science and Technology), Wuhan 430074, China |
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| Abstract: | |
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| Keywords: | wind power generation doubly-fed induction generator (DFIG) low voltage ride through (LVRT) Crowbar short circuit current transient analysis |
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