通过对3种双液压缸同步控制方法的比较分析,并结合丰满大坝溢流闸门现场环境条件较为恶劣的状况,确定了采用以速度粗调和位置精调相结合的同步控制方法,成功地解决了北方露天环境中闸门双液压缸难以同步控制的问题。该同步控制方法通过了原型运用的检验,同步精度较高,工作较为可靠。 Through the comparative analysis of the three kinds of double hydraulic cylinder synchronous control methods, combined with the harsh environment conditions of the Fengman dam overflow gate, it is determined that the synchronous control method combining speed coarse adjustment and position fine adjustment is successfully adopted In the open air in the north of the gate double hydraulic cylinder is difficult to synchronize control problems. The synchronous control method has passed the test of prototype application, with higher synchronization accuracy and more reliable work.