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分析了双缸液压电梯双缸不同步运动的原因，并在系统建模的基础上，利用计算机仿真和试验台试验，比较了增量式比例一微分一积分控制（ＰＩＤ）和模糊ＰＩＤ控制双缸同步误差的效果．
The reasons for the unsynchronized motion of the twin-cylinder double-cylinder hydraulic lifts were analyzed. Based on the system modeling, computer simulations and test-bed tests were used to compare the incremental proportional-differential-integral control (PID) and fuzzy PID controls. Cylinder synchronization error effect.