因而拟对其进行磁极改造，以改善发电机定转子之间的槽配合，增大电机气隙、增加阻尼棒截面积。
Therefore, the magnetic pole has to be renovated, so as to improve the slot conjugation, enlarge the air gap of generator set, extend the section area of the damper bar.
数值结果表明，双层多重调谐质量阻尼器(DMTMD)比多重调谐质量阻尼器(MTMD)具有更好的有效性和对频率调谐的鲁棒性。
The results indicate that the DMTMD provides better effectiveness and robustness to the change in the frequency tuning than the multiple tuned mass dampers (MTMD) with equal total mass.
动态仿真分析表明，该最优励磁控制系统能够有效地增加系统的阻尼，提高系统的稳定性，并具有较好的鲁棒性。
By the dynamic simulation analysis, this optimal excitation system can increase the system damping and improve system stability with very good robustness.
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