【摘要】 本文着重研究电力系统暂态稳定快速仿真方法。在采用简单模型和分段线性化的基础上,通过适当的坐标变换,导出了一种直接求解仿真方法,并提出了一种基于后验误差的自动步长控制方法,结合隐式梯形积分规则,推导出了一种递推求解仿真方法。理论分析和仿真计算表明,这两种新方法计算简便快速,可快速“扫描”电力系统暂态过程,为电力系统暂态稳定实时仿真提供了一个有力工具。更多还原

【Abstract】 The present paper studies the fast numerical simulation methods of power system transient stability. Using the classical model and piece-wise lincarization technique, we propose two new approaches. Bascd on proper transformations, the first approach can give an analytical solution at each step. The second one is a recurrence method, where the trapezoidal rule is adopted and the relaxation method is used instead of the direct but timcconsuming matrix inversion. The techniques are tested on a 3-machine 7-bus system and the results are included.更多还原