Abstract
In this paper, force control of the servo motor using stochastic resonance is proposed. The servo motor control by a micro controller developed, in this research, consists of an AC servo motor with a ball screw. For estimation of applied force, Reaction Force Observer (RFOB) is employed. In the RFOB, the bandwidth depend on the motor speed. Since the ball screw structure has high viscosity, response force responsibility of the estimation is not suitable for practical industrial application. In this paper, to improve the system responsiveness, servo control system with stochastic resonance is proposed. Finally, experimental results show the effectiveness of the stochastic resonance.
