Apply multiple objective method in the optimization of specific coeffitions of tow stage closing law of guide vane, adjust the contradiction effectively of the arising of the rotational speed and the dynamic pressure in the spiral case.
将多目标优化方法应用于两段导叶关闭规律具体控制参数的优化中,即对第一段导叶关闭时间、第一段导叶关闭时间和拐点开度进行优化。 有效地协调了在突甩负荷过程中机组转速上升和蜗壳水压上升的矛盾。
参考来源 - 多目标优化方法在水轮机运行中的应用·2,447,543篇论文数据，部分数据来源于NoteExpress
If the changeover point of the above closing law is located in the S-shape effect zone, there is only one pressure peak.
若机组关闭规律不变而拐点位置已经进入反“S”区域，蜗壳进口压力将呈现为单峰形态。
Secondly, if the two-segment closing law, the guide vanes close slowly first and then faster, only one pressure peak will be left.
当机组采用先慢后快的两段折线式导叶关闭规律时，蜗壳进口压力只有单峰。
The origin of the unit vibration in small guide vane opening is analyzed when the unit is closing and the optimal scheme of the unit closing law is suggested.
本文拟对关机过程中导叶小开度振动原因进行分析，并对机组关闭规律的优化方案及实施过程进行介绍。
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