On the basis of modeling, simulation and field test, proposed are the PID parameter setting range of the governor under the large grid operating condition, and the power control mode of the unit.

通过建模、仿真及现场试验，提出了机组并联于大电网工况下的调速器PID参数整定范围和应有的机组功率控制模式。

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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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