Design of Type-1 Servo Systems Based on a Dual Observer and Its Application to Positioning Control of Flexible Structures

This paper presents a new design method of servo control system based on dual observers for the positioning of flexible structures with the elasticity. In order to reduce the sensors and to suppress spillover phenomena with caused by ignored elastic modes of the plant, we introduce an input pre-filter which possesses low pass characteristics First, On the basis of the augmented system which is expressed by the plant, an input pre-filter and an integrator based on Internal Model Principle, we design the servo compensater including dual observers for matching desired models. Second, some results of numerical simulations are given。