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Simulation of Self-excitation for Power System Based on Precise Integration Algorithm
Author(s): LI Zhi-min, MA Li-hua, ZHANG Yu, HUANG Xiao-peng
Pages: 90-
94
Year: 2008
Issue:
3
Journal: PROCEEDINGS OF THE CSU-EPSA
Keyword: 电力系统; 精细积分法; 自励磁; 仿真;
Abstract: 精细积分法是一类高精度求解微分方程的方法,它摒弃了传统求解动力学方程常用的差分格式.为此,给出了同步电机的自励磁数学模型,并结合精细积分法的思想,推导出一种形式简洁、仿真快速的精细自励磁积分格式,同时考虑了发电机磁路的饱和特性.通过对自励磁暂态过程仿真发现:与隐式梯形法相比,精细积分法不仅具有非常高的计算精度和良好的数值稳定性,而且在仿真过程中可以采用较大的步长,进而提高系统的仿真速度.
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