The uncertainty and disturbance estimation (UDE)-based robust control strategy is able to
achieve good robust performance by estimating and compensating the uncertainty and …

This paper presents a tutorial-style review on the recent results about the disturbance
observer (DOB) in view of robust stabilization and recovery of the nominal performance. The …

An improved equivalent-input-disturbance (EID) approach is devised to enhance the
disturbance-rejection performance for a strictly proper plant with a state delay in a modified …

This article reports on the mechanism design, dimension optimization, closed-loop control,
and practical application of a piezoelectrically actuated fast tool servo (FTS) for the diamond …

This paper addresses the problem of completely eliminating modeled disturbance that
enters linear minimum-phase systems having parametric uncertainty and is generated by a …

The dual-stage actuation effectively extends the dynamic response and tracking accuracy of
conventional fast tool servos (FTS). In this study, a normal-stressed electromagnetic stage is …

This paper provides a generic analysis of the relationship between time-and frequency-
domain disturbance observer (DOB) design methodology. It is discovered that the traditional …

In constant-voltage constant-frequency (CV CF) pulsewidth modulation (PWM) dc-ac
inverters, the lumped disturbance, including the parameter uncertainties, unmodeled …

The paper suggests a method aimed to improve the performance of dynamical systems with
periodic uncertainties and disturbances (ac power converters are typical representatives of …

It is important to account for the gap between the dynamics of a plant to be controlled and its
mathematical model to improve the control performance. Hence, a controller is designed …