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电网技术  2013 

永磁双馈风力发电机的并网控制策略

, PP. 2278-2283

Keywords: 风力发电,永磁双馈发电机,并网,电压定向矢量控制,电压跌落

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Abstract:

基于同步旋转坐标系建立了永磁双馈发电机(permanentmagneticdoublyfedinductiongenerator,PMDFIG)的数学模型,分析了PMDFIG在稳态和电压跌落情况下并网运行的控制策略,建立了该电机的稳态与动态的仿真模型。稳态仿真结果表明,与传统双馈发电机相比,PMDFIG能降低励磁变频器容量,降低电网扰动过渡过程中发电机定转子过电流。动态仿真结果验证了所提控制策略在电网电压小幅跌落时的有效性。

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