A research is conducted on application of dynamic vibration absorber for controlling hoistmotor vibration during its rotary speed variation.
针对起重机系统电机变速过程引发的振动问题，应用单个动力减振器进行控制。
2
Then the hoistmotor of the stacker crane is controlled successfully by the VVVF speed regulation and the better orientation precision and running speed of stacker crane are expressed in the practice.
通过实际系统的运行和调试，堆垛机的提升控制系统在控制中获得了更高的定位精度和更快的运行速度。
3
The paper introduces the main performance indexes of double speed three phase asynchronous motor used in electric chain hoist and the problems which occor in the test and manufacture process.