전동실린더의 동기제어시스템 구축

Construction of the Synchronous Control System for Motor Cylinders

A motor cylinder is widely used as an apparatus for transportation of a small scale load. It is, however, difficult for only one motor cylinder to transfer a large scale load such as a weir. The large scale load is transferred by two motor cylinders which are mounted on right and left of load itself. In this case, the displacement difference generated between two motor cylinders, namely, the synchronous error has a bad influence on the transportation. In this study, a synchronous control system is designed to restrain synchronous error caused by disturbance. the control system is composed of two disturbance observers and one synchronous controller. Each disturbance observer is designed to restrain the disturbance. And the synchronous controller is designed to achieve accurate synchronization. Finally, the simulation results show that the designed control system is effective for the disturbance which lead to synchronous error.