采用主成分分析优化地震属性，通过雅克比方法计算特征值、特征向量。-Optimization using principal component analysis of seismic attributes, calculated by Jacobi eigenvalue, eigenvector.

特征值分析，便于模态分析电网稳定态态势分析和薄弱环节识别-Eigenvalue analysis, to facilitate modal analysis grid steady state trend analysis and identification of weak links

分析交流系统串补引起的次同步谐振问题时，为实现频率扫描法与特征值法的优势互补， 提出结合2种算法进行分析的混合方法-Analysis of series compensation AC system subsynchronous resonance caused problems for the realization of the frequency scanning method with complementary strengths eigenvalue method proposed