| 直驱式永磁同步风力发电机低电压穿越方法 |
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| 引用本文： | 温春雪,李源,李正熙.直驱式永磁同步风力发电机低电压穿越方法[J].冶金自动化,2012,36(4):8-11. |
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| 作者姓名： | 温春雪 李源 李正熙 |
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| 作者单位： | 北方工业大学北京市电力电子与电气传动工程研究中心,北京,100144 |
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| 基金项目： | 北京市教育委员会科技计划资助项目 |
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| 摘 要： | 随着风力发电机组容量的迅猛发展,低电压穿越能力成为风力发电机并网运行的必要条件。对于直驱式永磁同步风力发电机而言,可以通过在不同的位置加入撬棒(Crowbar)保护电路来增强其低电压穿越能力。笔者总结了各种Crowbar保护电路的特点和适用环境,并对其控制方法进行了说明,分析了各种保护电路的优缺点。分析结果表明直流环节Crowbar保护电路的实用性和稳定性较好,是目前风力发电机组主要采用的低电压穿越方法。
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| 关 键 词： | 直驱式永磁同步风力发电机 低电压穿越 撬棒保护电路 |
Low voltage ride through methods of the direct-driven PMSG for wind power system |
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| WEN Chun-xue,LI Yuan,LI Zheng-xi.Low voltage ride through methods of the direct-driven PMSG for wind power system[J].Metallurgical Industry Automation,2012,36(4):8-11. |
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| Authors: | WEN Chun-xue LI Yuan LI Zheng-xi |
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| Affiliation: | (Beijing Power Electronics and Motor Drive Engineering Research Center,North China University of Technology,Beijing 100144,China) |
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| Abstract: | With the rapid development of wind power generator capacity,power grid requires wind turbine generation system has ability to accomplish low voltage ride through(LVRT).Direct-driven permanent magnet synchronous generator(PMSG) for wind power system can add Crowbar protection circuits in different places to accomplish LVRT.This paper summarizes the characteristics and applications of different Crowbar protection circuits,explains the control methods,and analyses the advantages and disadvantages of all kinds of protection circuits.The analysis results show that DC side Crowbar protection circuit has high reliability and industrial applicability.Therefore this scheme applies in most wind power generation system. |
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| Keywords: | direct-driven permanent magnet synchronous generator for wind power low voltage ridethrough Crowbar protection circuit |
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