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电网技术  2010 

双馈风力发电机在不同电网故障下的动态响应仿真研究

, PP. 170-175

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Abstract:

为更好地研究风力发电机在一定的电网电压骤降故障下的动态响应,以单台1.5MW双馈风力发电机(doubly-fedwindturbine,DFIG)为研究对象,参考美国风能协会制定的风力机组低电压穿越(low-voltageridethrough,LVRT)标准,通过构建不同的电网电压骤降仿真模型,分别对机端电压、电流、转子电流、输出的有功功率和无功功率、直流侧电压、电磁转矩在故障期间的动态响应进行了仿真。通过比较几种典型故障下各个变量不同的变化程度,探讨了相应的控制策略,为进一步研究低电压穿越标准下的控制策略提供了依据。

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