Abstract
Recently, high precision and fast response motor drive systems are increasingly used in many industrial applications. With the development of control theories and equipment, the system response has become faster and faster, while the stiffness has reduced due to miniaturization and weight reduction of the equipment. As the result, the system has to be treated as a resonance system in some cases, so that some effective control methods to suppress the vibration are proposed.Based on the pole placement approach, we have proposed a vibration suppression control method of the 2-inertia speed and position control systems which need no information about the load side variables. However, this method needs a lot of computation and the characteristic equation for the system must be changed according to the change of the inertia ratio. In this paper, we apply a genetic algorithm (GA) for the determination of the controller gains. Simulation results reveal that the proposed method is even useful for wide range of the inertia ratio and can get the solution quickly.Finally, the effectiveness of the proposed method has been verified by experiments.
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