针对数值求解浅水方程中的难点问题，运用嵌套方法模拟计算了三亚电厂附近海域潮流场。
In view of the difficulty in the solving shallow water equation, the nested method is used to simulate tidal current field in the neighbouring sea area of Sanya power plant.
这种建立模型的思想还可以应用到需要计算海森矩阵的动态无功优化、最优潮流以及状态估计等问题的算法中，以提高其计算速度。
This proposed modeling idea can also be applied to dynamic reactive optimization, optimal power flow and state estimation for a faster calculation.
对电能质量问题当前所应用的计算分析方法进行了总结，尤其详细讨论了电气化铁路计算中需要用到的基于AT等值电路的潮流算法。
Some current methods of calculation for power quality problems are summarized, especially a detailed analysis algorithm of the electrified railway based on AT equivalent circuit of the power flow.
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