多机系统在参数扰动下的周期解

PERIONDIC SOLUTION IN MULTIMACHINE POWER SYSTEM AFFECTED BY PARAMETER VARIATIONS

研究了多机系统受到功率或线路阻抗扰动时的周期解，建立了相应的数学模型，利用空间周期解理论导出了多机系统产生周期解的一些条件。文中所讨论的扰动可以是强振性的，这为研究多机互联系统所产生的低频振荡现象提供了理论分析基础。

The paper discusses the periodic solutions of multimachine power systems affected by perturbations of power or transmission line impedance. The space periodic solution theory is used to introduce the conditions in which the multimachine power systems produce periodic solution.The paper discusses the perturbations which can be strong vibratory.And provides theoretical analytic basis for the study of low frequency vibrant phenomenon in multimachine power systems.