For improving the efficiency of power system stability analysis, it is necessary to study two time scale dynamic models of power systems and relevant model reduction.

为提高稳定计算的效率，对复杂的电力系统模型进行化简，以实现系统化降阶非常必要。

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After theoretical analysis, small scale model tests are done. Two slope angles: 1:1 and 1:1.2;

理论分析之后，作者进行了室内静力模型试验，模拟了两种边坡坡比：1：1和1：1．2；

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After theoretical analysis, small scale model tests are done. Two slope angles: 1:1 and 1:1.2;

理论分析之后，作者进行了室内静力模型试验，模拟了两种边坡坡比：1：1和1：1．2；

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