Host: The Japan Society of Mechanical Engineers
Name : Dynamics and Design Conference 2019
Date : August 27, 2019 - August 30, 2019
A vibration reducing effect of a magnetic suspension system using a first-order-reset element (FORE) in the controller is enhanced by a modified reset function. The proportional-derivative (PD) feedback control is the simplest control method of stabilizing the magnetic suspension systems which consists of two elements. In the PD-controlled systems, restoring force is produced with the proportional element and damping effect is produced with the derivative element. Meanwhile, the feedback controller consisted of a FORE for the stabilization of magnetic suspension system has been proposed. The FORE is replaced a linear integrator built into a first-order-low-pass filter with a non-linear integrator. The proposed controller can be achieved the stabilization of magnetic suspension system with one element which produces two effects of the restoring and the vibration reducing. However, the FORE-controlled system cannot given the restoring force and the vibration reducing effect, separately. The vibration reducing effect will be determined when the restoring performance is achieved by the feedback gain of FORE. Therefore, this paper proposes more reduced vibration by modified the value for the transition at the reset. This paper shows several results in the simulations and the experiments.
