Based on the study of the movement of oscillation center, a criterion of determining whether the center of out-of-step will lies in the interior of the generator is proposed.

基于振荡中心漂移的研究，给出了判断失步中心能否落到机组内部的判据。

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The reasons and characteristics of the movement of oscillation center and the behavior of varying electrical quantities during this kind of asynchronous operation are also discussed.

针对复杂电力系统发生多频率异步运行的情况，振荡中心飘浮移动的原因、规律以及电气量变化的特征进行了初步分析与探讨，并通过数字仿真进行了必要的验证。

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Through the multi-gait simulations of forward-oscillation turn, some effects of the length and the curvature of the flexible fish body on the fast-turn parameters, including track of center of…

通过前摆转向的多步态仿真游动实验，解析了鱼体柔性段弧长和相对弯曲度对质心轨迹、转动惯量、力矩、转动角位移及最大转动角速度的影响，提出了有效提高鱼形机器人快速转向性能的方法。

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