Linear adaptive position control system of brushless DC servo motor

A linear adaptive position control system for a brushless DC servomotor is proposed. The state error caused by both parameter variations and force disturbance is rapidly suppressed based on the dual passive adaptive control loop; the same approach can also be used to realize model reference acceleration control. As this structure is simple, calculation time required by the total position control system is very short. Experimental results show that the system is effective for both robust control and acceleration control.<>