结合定子磁链控制，提出异步电机基于定子磁链幅值恒定的电压矢量控制方案，并对该方案的非线性局限进行了分析。
Then a voltage vector control scheme for induction motors based on constant stator flux is presented and it's nonlinear limitations are analyzed.
从理论上描述了单一受激波的场幅值和频率偏移的非线性变化。
The theory describes the temporal nonlinear evolution of the field amplitude and frequency shift of a single wave mode.
通过分析所得模图和相图的典型特征，得到舰船非线性横摇幅值和频率等动力学特性。
The dynamic characters about amplitude and frequency of ship nonlinear roll under typical wave parameters were obtained.
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