利用拟合技术决定实用电力系统动态安全域

Practical Dynamic Security Regions of Power Systems

本文在近年发展的电力系统暂态稳定结构保留模型、拓朴能量函数和势能界面法的基础上,首次使用超平面拟合和正交选点方法,构成了决定实用电力系统动态安全域(PDSR)的可行算法。该PDSR不仅能较好地模拟实际感兴趣的动态安全域,而且易于表达和使用。

In this paper, based on the structure preserving model, the topological energy function and the method of the potential energy boundary surface of power system transient stability analysis which all have been developed in recent years, an effective algorithm for deriving the practical dynamic security regions (PDSR) of multimachine power systems is proposed. One hyperplane of the PDSR is approximated by least squares using the critical points selected with reference to orthogonal tables. Such PDSR not only can simulate the interested parts of dynamic security regions well, but also can be expressed and used easilly.