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通过对固定界面明满流的衔接计算，探讨了机组增减负荷时长尾水渠中涌波的性态；分析了明渠尺寸对涌波大小和周期的影响；并以实际工程为例计算研究了水轮机调节规律对调保参数及涌波的影响，以及机组依次增减负荷时涌波的叠加等问题．
Through the connection calculation of the full flow at the fixed interface, the state of the surge in the tailrace with increasing or decreasing load of the unit is discussed. The influence of open channel size on the size and period of the surge is analyzed. The law of turbine regulation The impact of policing parameters and surge, and the superimposition of surge when the load increases or decreases in turn.