但由于驱动器的材料、结构和工作条件各异，所以关于动态非线性的定量描述难以建立一个统一的数学模型。
But the differences of material? Construction and work condition of actuator lead to difficulty of setting up a standard mathematic model to precisely formulate the dynamic non-linearity character.
以河南电网为例，采用暂态安全定量分析软件FASTEST计算了不同动态负荷模型比例时的暂态功角稳定裕度和临界切除时间。
The transient Angle stability margin and critical clearing time are computed by FASTEST under different proportion of dynamic electric load model using in Henan Power Grid.
输出多种定量指标体系，分类组合查询和关键字综合查询，可动态添加的评测和预警模型：Z记分模型等。
Output of a variety of quantitative indicators system, an integrated clustering queries and keyword queries can be dynamically added evaluation and early warning models:Z score model.
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