A study on the dual-servo system using improved cross-coupling control method

This paper presents first result in the course of studying, development and implementation of synchronizing control method on the dual-servo system. Conventional synchronizing control method is often used for precise slide position control, which concerns cross-coupling in terms of angular position only. However, it is not easy to synchronizing control in case there are some different load disturbances in each motor. In order to achieve satisfactory reduction the synchronous error between two servo motors and accuracy position control at the same time, a new control scheme is comprised with cascade control and an improved cross-coupling control is proposed. The improved cross-coupling control method performs in terms of angular position and velocity simultaneously for high speed and accurate position control. In the simulation servo system, the servo motor model adopts the CE110 Servo Trainer model from TQ Education and Training Ltd. Also different load disturbances are applied to each servo system. Newly proposed cross-coupling control scheme is implemented for synchronizing control of each servo system under different disturbances. The simulation reveals more stable and efficient performance than conventional synchronizing control method.