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电网技术  2012 

使用辨识得到的运算电感模型估计同步发电机d轴等值电路参数

, PP. 82-87

Keywords: 同步发电机,参数估计,等值电路参数,运算电感模型

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Abstract:

提出了一种利用辨识得到的运算电感模型确定同步发电机d轴等值电路参数的方法。由于辨识得到的运算电感模型的参数通常带有误差,直接根据解析公式求取的等值电路参数值可能远离其真值。为获得较为准确的等值电路参数值,首先将用解析公式计算得到的等值电路参数值作为初值,然后基于发电机的混合状态模型,用预测误差法对等值电路参数进行估计。数值仿真的结果验证了本文所提方法的有效性。

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