| 双馈感应风力发电机故障穿越特性及其控制 |
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| 引用本文： | 李宾宾,丁明,韩平平.双馈感应风力发电机故障穿越特性及其控制[J].中国电力,2011,44(9):10-16. |
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| 作者姓名： | 李宾宾 丁明 韩平平 |
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| 作者单位： | 合肥工业大学教育部光伏系统工程研究中心,安徽合肥,230009 |
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| 基金项目： | 国家重点基础研究专项经费资助项目(2009CB219702); 国家科技支撑计划资助项目(2008BAA14B02) |
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| 摘 要： | 风电场低电压穿越能力对接入系统的暂态稳定性有着重要影响。分析双馈感应风力发电机的励磁控制原理,在此基础上研究风电机组基于电流解耦的矢量控制策略以及故障期间转子侧变流器Crowbar(撬棒)滞环保护方案和网侧变流器的电压支撑技术。运用PSCAD/EMTDC仿真工具研究常规同步发电机和双馈风力发电机2种类型机组在短时间和长时间短路故障时的暂态响应特性,并探讨变流器参数对风电机组性能的影响。结果表明:变流器紧急应对措施可以使风机迅速恢复控制能力,从而通过灵活地调节其转子磁链矢量的幅值和相角使电压快速重建;此外,选择合适的直流侧电容容量将增强不对称故障情况下网侧变流器抵抗负序电流的能力。
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| 关 键 词： | 双馈感应风力发电机 变流器 故障穿越 电容容量 暂态稳定 |
Studies on fault ride-through and its control of doubly-fed induction generators in wind farms |
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| LI Bin-bin,DING Ming,HAN Ping-ping.Studies on fault ride-through and its control of doubly-fed induction generators in wind farms[J].Electric Power,2011,44(9):10-16. |
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| Authors: | LI Bin-bin DING Ming HAN Ping-ping |
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| Affiliation: | LI Bin-bin,DING Ming,HAN Ping-ping(Photovoltaic System Research Center of MOE,Hefei University of Technology,Hefei 230009,China) |
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| Abstract: | The low voltage ride-through ability of a wind farm has an important effect on the transient stability of a power system.The excitation control principle of a doubly-fed induction generator(DFIG) was analyzed and the vector control strategy of a wind generator was established based on the current decoupling method.Crowbar hysteresis loop protection of the rotor side converter(RSC) and voltage support technology of the grid side converter(GSC) during the fault were also presented.The transient responses of t... |
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| Keywords: | doubly fed induction wind generator converter control fault ride-through capacitance capacity transient stability |
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