电力系统电磁暂态-机电暂态混合仿真接口实现

Implementation of Interfaces for Hybrid Simulation of Power System Electromagnetic-Electromechanical Transient Process

作者在关于电力系统电磁暂态-机电暂态混合仿真研究的系列报告之一中曾提出了一种混合仿真的接口方法。在该混合仿真研究的系列报告之二中,作者主要针对电磁暂态机电暂态仿真接口实现过程中由于机电暂态网络正、负序阻抗不相等引起的机电暂态网络等值导纳矩阵不对称的问题, 提出了“节点分裂接口算法”,并提出了一种戴维南等值简化法,用于快速计算节点分裂法需要的相关变量。

The authors have proposed a general interface method for hybrid simulation of power system electromagnetic transient and electromechanical transient processes in the first one of serial papers about hybrid simulation. Here, in the second one of these serial papers, to solve the problem of the asymmetry of equivalent admittance matrix for electromechanical transient network caused by the unequality of positive sequence impedance of electromechanical transient network to its negative sequence impedance during the implementation of the interface for hybrid simulation of electromagnetic-electromechanical transient process, a node-split algorithm is proposed and a simplified Thevenin＇s equivalent method to fast calculate the correlative variables by the proposed algorithm is given.