Through simulation of sequence control system, free conversion of hydroelectric unit's operating mode and trouble-free operation of whole control flow are realized.

通过对顺序控制系统的仿真，实现了水电机组工况自由转换和整个控制流程的顺畅执行。

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For a given unit control sequence, the time relation of the unit in the worst case can be accurately obtained by computing once only with U-mode data.

对于给定的部件控制时序，用U -型数据，仅一次便可准确地计算出该部件最坏情况下的时间关系。

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On the basis of introducing the main circuit topology, the control sequence and mode transition of the circuit were analyzed and validated by means of simulation.

在介绍主电路拓扑基础上，分析了电路的控制时序及工作模式转换，并通过仿真验证了控制时序的正确性和电路的软开关性能。

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