An algorithm for power system frequency measurement based on numerical differentiation and central Lagrange interpolation is presented.

提出了一种基于数字微分和拉格朗日插值的系统频率快速而准确的测量算法。

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As for the numerical simulation by traditional power system component models and parameters, the obtained dynamic frequency curves evidently diverge from measured ones.

采用常规的电力系统元件模型和参数进行数值仿真所得的频率变化曲线与实测曲线偏差较大。

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The possibility of chaos in S. cerevisiae culture system in CSTR was investigated by means of numerical computation under fixing the amplitude A and changing the frequency w of forced impulse.

以全混釜中酵母培养系统为对象，固定外加激励振幅值，改变激励频率，运用数值方法研究了强迫激励下乙醇连续发酵系统中存在混沌的可能性。

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