大型电力系统机电模式特征根的直接初估和快速求解

本文作为一系列研究的继续，提出了两项重要措施以进一步改进ＡＥＳＯＰＳ算法。其一是基于ＥＥＡＣ理论来直接估算特征根实部以及阻尼对特征根虚部的影响；其二在多机状态空间中进一步改进了作者提出的牛顿一雅可比解析式，用以精确求解。本文总结了加快迭代、防止发散的措施，并在实际大系统中进行了仿真，验证了本文提出的改进措施的有效性。

DIRECT ESTIMATION AND FASTER CALCULATION OF SWING MODEEIGENVALUES OF LARGE POWER SYSTEMS

To overcome the weakness of the AESOPSalgorithm two improvements are proposed in this paper.EEAC method provides a direct way of estimating both realand imaginary parts of the eigenvalues. A very simple Newton-Jacobian with an analytical formula is derived in themultimachine state space. Some heuristic rules are also proposed to improve the convergence characteristics. Extensivesimulation results on real large poyer system are presentedto demonstrate the effectiveness of 4he improvements.