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电网技术  2009 

双馈异步发电机的不同目标优化控制

, PP. 109-114

Keywords: 双馈异步发电机(DFIG),优化控制,全补偿,最小铜损

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Abstract:

在变速恒频风力发电系统中,双馈异步发电机的设计和控制直接关系到系统的经济成本和机组的运行效率。文章从不同控制目标的角度出发,提出全补偿、最小铜损、转子电流最小3种电机优化控制方式。建立不同方式下控制信号的数学模型,指出定、转子有功、无功功率的关系及各种方式控制性能的优缺点和适用场合。最后对1.5MW双馈异步发电机在不同控制方式下的运行特性进行比较,验证了上述关于运行特性分析的正确性。

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