当摄动系统的发电机惯性时间常数趋向于零时，各频率分量也趋向于零。
When the inertia constant of the perturbed system is approaching zero, so is the frequency deviance.
衡量过程具有纯滞后的大小通常采用过程纯滞后和过程惯性时间常数之比。
Measure the size of the process is usually higher than with a pure lag time delay process and the process of inertia time constant use.
结果表明，被略去的小惯性时间常数对最优励磁控制的微动态稳定鲁棒性有较大的影响。
The results show that the small inertia time constants neglected have a greater effect on the micro-dynamic robust stability of the optimal excitation regulator.
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