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本文提出了系统特征系数灵敏度的概念，导出了特征系数灵敏度与特征值灵敏度间的关系。
A new concept, characteristic coefficient sensitivity, is introduced. The relationship between it and eigenvalue sensitivity is also given.
依据特征值灵敏度对系统状态矩阵A重新排序，仅保留与特定模式强相关的发电机组，使矩阵维数得以降低。
The matrix A is rearranged by eigenvalue sensitivities, and reduced in dimension with only the strong correlation generators reserved.
本文利用数学定理和新的灵敏度定义给出特征值和特征向量导数的精确解。
The exact solution of derivatives of eigenvalue and eigenvector is presented by utilizing the mathematical theorem and new definitions of sensitivities.
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